Repeat buyers are one of the strongest measures of confidence in any apartment development.

At <a href="https://www.apartments.com.au/new-apartments/era-newcastle-west-124-126-bull-street-newcastle-west-nsw-2302">ERA</a> in Newcastle West, some purchasers are returning to <a href="https://www.apartments.com.au/developers/gwh">GWH</a> after living at the developer's One Apartments. Their decision to purchase again was driven by the quality of life they found after moving into their first GWH home.

Keith Wilton had spent years living in a house in East Maitland before deciding it was time for a change. Apartment living had always been on his radar, but he was selective about what he wanted.

<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="315" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/FH_1EzB-1vs?si=XScVlP1ERsTDJoME" title="YouTube video player" width="560"></iframe>

"I had some boxes I wanted to tick," he says.

Keith points to the open-plan design, generous outdoor areas and considered inclusions as key reasons One Apartments worked for him.

“One of those things was a nice indoor open plan area, but also I wanted a nice outdoor open area that I could entertain on in summer or Christmases or birthdays,” he says.

He also found value in the smaller details, from integrated appliances to shared resident spaces including the pool, cinema and rooftop areas.

[smartcode_project:default project_id=135096 project_image_fid=356818]

After comparing several developments, he chose One Apartments because of GWH's longstanding local reputation and his own experience working with the developer on a commercial project more than a decade earlier.

"I knew that they were local, that the quality of the build was going to be up there. I'd looked at other apartment complexes around and close by, and I just knew that here was a better decision location wise."

Today, Keith says the move has completely changed how he experiences Newcastle.

"I enjoy living in this location because it's more of a lifestyle change. That Newcastle city living where you can walk to restaurants and bars and even beaches and parks and even shopping across the road."

[smartcode_project:default project_id=135096 project_image_fid=356828]

Beyond the location, he says it's the sense of community that has surprised him most.

"Everyone loves living here because they chose to live here, but everyone looks out for each other. It's a real great community feel here."

For Aimee and Lyle Goodman, the journey started almost by chance.

<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="315" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/tsioMLcnjas?si=zq-ys3JuWpfa5hFv" title="YouTube video player" width="560"></iframe>

The couple happened to be having coffee in Newcastle when they noticed the site where One Apartments was about to begin construction.

"We were aware GWH was planning a development," Aimee says. "We made one phone call and things moved pretty quickly after that."

As busy business owners, they initially thought apartment living would simply reduce the maintenance that came with larger homes. Instead, it fundamentally changed how they spent time together.

"We actually catch up more as a family now," Aimee says.

"We've had homes with big yards and lots of space, but everyone ended up in different rooms. Here we'll have dinner together, the kids can play, and we spend far more quality time together."

[smartcode_project:default project_id=135096 project_image_fid=356829]

Lyle says their confidence came from GWH's reputation within Newcastle's building industry.

"I know people who've worked across different apartment projects, and whenever GWH came up the feedback was always the same. They're rock solid. They're quality."

That confidence only grew throughout the buying process.

"One of the things that really impressed us with GWH was the whole process, was the communication," Lyle says. "It was consistent, it was regular, there was no problem if we had some weird questions, there was no problems in getting answers."

[smartcode_project:default project_id=135096 project_image_fid=351104]

Aimee says one moment stood out.

"The project actually finished on time. We realised we needed to hurry up and sell our house because everything was happening exactly when they said it would."

The positive experience at One Apartments ultimately gave all three buyers the confidence to purchase again with GWH, this time at ERA.

Their confidence reflects what many buyers are seeking in today's apartment market. Location remains important, but so too does certainty around delivery, quality and long-term liveability.

[smartcode_project:default project_id=135096 project_image_fid=356822]

ERA builds on those foundations with 280 one, two and three-bedroom apartments across two landmark towers in <a href="https://www.apartments.com.au/developments/newcastle-west-nsw-2302">Newcastle West</a>.&nbsp;

Designed by <a href="https://www.apartments.com.au/architects/fk-australia">Fender Katsalidis</a>, the project will include more than 2,000 square metres of resident amenities, including a resort-style pool, gym, sauna, private cinema and rooftop entertaining spaces overlooking the harbour and coastline.&nbsp;

The development is also within walking distance of the Newcastle Interchange, Honeysuckle, Darby Street, the harbour foreshore, restaurants, retail and the city’s beaches, continuing the walkable lifestyle that existing GWH buyers say has transformed how they live.

[smartcode_project:default project_id=135096 project_image_fid=356826]

For Keith, the appeal remains straightforward.

"You feel at home even before you've moved into your home."

For Aimee, the change is measured in time.

“I just felt like I had more time,” she says.

[smartcode_project:default project_id=135096 project_image_fid=351102]

Construction at ERA is now underway, with more than half of the residences already sold and limited two and three-bedroom apartments remaining in the East Tower release. Priced from $980,000 for two-bedroom residences and $1.46 million for three-bedroom residences, buyers can secure an apartment with a 10 per cent deposit, with premium homes offering ocean views from Level 8 and harbour views from Level 10.

ERA is also backed by Resilience Insurance's 10-year Latent Defects Insurance policy, providing protection against structural or waterproofing defects for 10 years after completion. The project is anticipated to be completed in early 2028.

[smartcode_project_cta:default project_id=135096]

Joel Robinson

From ONE to ERA: Why buyers are choosing GWH again in Newcastle West

Virgate Property Group is preparing to commence construction of Verdé, its new apartment development in Melbourne's Arts Precinct at Southbank, following a strong run of sales that has seen more than half of the project's 173 apartments secured.

Verdé has attracted a broad mix of first home buyers, owner-occupiers upgrading from nearby inner-city suburbs and investors, with younger owner-occupier couples aged between 28 and 45 accounting for the strongest enquiry. Many are already living in Southbank, South Melbourne, Albert Park, Port Melbourne, South Yarra and the CBD.

"Verdé is located in one of the most desirable pockets of southern Melbourne," Blair Property Group Director Darren Blair, who is managing sales at Verdé, said.

"It's within walking distance of the Arts Centre, Royal Botanic Gardens, Albert Park Lake, and Southbank's restaurants and retail. It's a great lifestyle location with strong amenity and liveability, which made it a very attractive choice for the project."

[smartcode_project:default project_id=4661 project_image_fid=372549]

Virgate was already familiar with the precinct, having previously delivered the successful Domain House development in neighbouring South Melbourne. That experience gave the developer confidence to acquire the Coventry Street site and continue expanding its presence in Melbourne's inner south.

"We had been keeping an eye on the site and the broader precinct for a few months before deciding to move forward with the acquisition," Virgate said.

The project was ultimately secured in 2020 following feasibility studies, planning assessments and due diligence, with the brief centred on delivering "a high-quality, considered design that feels both refined and fit for purpose."

[smartcode_project:default project_id=4661 project_image_fid=314259]

Designed by <a href="https://www.apartments.com.au/architects/bruce-henderson-architects">Bruce Henderson Architects</a>, Verdé comprises 173 one, two and three-bedroom apartments priced from $599,000. The architecture is distinguished by a faceted glass façade that responds to both the site's outlook and Melbourne's changing light conditions.

According to Bruce Henderson Architects, the coloured glazing gives the building a distinctive identity while also providing privacy and solar shading, with residences oriented to capture views across the bay, city skyline and surrounding parklands.

Inside, <a href="https://www.apartments.com.au/interior-designers/designoffice">DesignOffice</a> has created interiors focused on natural light, efficient planning and enduring materials. Apartments feature engineered oak flooring, natural stone benchtops, floor-to-ceiling glazing and SMEG appliances, while a restrained material palette aims to complement the expansive outlooks rather than compete with them.

[smartcode_project:default project_id=4661 project_image_fid=372550]

Resident amenity has also been designed around everyday functionality rather than occasional use. Facilities include a concierge-serviced lobby, residents' lounge with fireplace, library and co-working space, gym, terrace garden with barbecue facilities, ground-floor café, and package delivery management.

The project's location continues to be one of its strongest drawcards. Positioned on Coventry Street, Verdé sits within walking distance of the National Gallery of Victoria, Arts Centre Melbourne, Royal Botanic Gardens and Albert Park Lake, while Southbank's dining precinct, Sturt Street trams and the new ANZAC Station are all nearby. The surrounding education catchment also includes Melbourne Grammar, Melbourne Girls Grammar, Mac.Robertson Girls' High School and several major university campuses.

The sales team says buyers have responded particularly well to the combination of location, design quality and long-term liveability.

"They're responding really positively to the quality of the design, premium resident amenities and the uninterrupted views. Many also appreciate the location and how connected it is to everything they need."

The ability to secure stamp duty savings before completion has also been a key factor for purchasers, alongside the opportunity to personalise finishes ahead of settlement.

With construction set to commence soon and more than half the apartments already sold, Verdé enters its next phase as one of the Arts Precinct's more established apartment developments, offering remaining buyers an opportunity to secure a residence before construction advances further. Expected completion is scheduled for late 2027.

[smartcode_project_cta:default project_id=4661]

Virgate's Verdé Southbank moves toward construction as sales fly past halfway stage

Downsizer-focused apartment development Kooyongkoot in Hawthorn has been recognised at the 2026 Better Future Melbourne Design Awards, taking home Gold and Silver awards in two categories.

<a href="https://www.apartments.com.au/new-apartments/kooyongkoot-hawthorn-1-kooyongkoot-road-hawthorn-vic-3122">Kooyongkoot</a>, currently being delivered by developer PQD and designed by Cera Stribley, received Gold in the Interior Design – Proposed category and Silver in the Architecture – Proposed category.

The dual recognition reflects the design approach behind the boutique development on prestigious Kooyongkoot Road, where the focus has been on creating homes for downsizers seeking the space, quality and functionality of a detached house within a low-rise apartment building.

Rather than maximising apartment numbers, <a href="https://www.apartments.com.au/developers/pqd">PQD</a> and <a href="https://www.apartments.com.au/architects/cera-stribley-architects">Cera Stribley</a> limited the development to just 18 residences, allowing for larger floorplans, greater privacy, generous landscaping and expansive communal spaces.&nbsp;The majority of the apartments also benefit from corner aspects, allowing for dual sources of natural light.

Now around 70 per cent complete and on track for completion in November 2026, Kooyongkoot will comprise a mix of garden residences, ter​race apartments, sub-penthouses, and is crowned by two half-floor penthouses with direct lift access and private rooftop terraces.

[smartcode_project:default project_id=102717 project_image_fid=355297]

The Silver Award for Architecture recognised the way the building responds to its prominent corner position at the ent​rance to Hawthorn's Scotch Hill precinct, one of Melbourne's most established residential neighbourhoods.

Rather than competing with the grand homes that line Kooyongkoot Road, the architectural approach focused on restraint and longevity, using curved brickwork, generous landscaping and carefully considered proportions to integrate with the existing streetscape.

"The form feels fluid and timeless, as though shaped by the landscape itself – architecture that belongs, rather than competes," said Chris Stribley, Co-Founder and Managing Principal of Cera Stribley.

The judging submission also highlighted practical innovations throughout the building, including lift cores servicing only nine homes each, a central landscaped lightcourt designed to bring daylight and ventilation into the building, and fully enclosed private storage rooms with lighting, power and shelving to better accommodate residents transitioning from larger family homes.

[smartcode_project:default project_id=102717 project_image_fid=355293]

The Gold Award for Interior Design recognised the project's focus on long-term liveability rather than display-home aesthetics.

According to the awards submission, the interiors were designed from the inside out, prioritising how homes would function over decades of daily use through generous proportions, practical storage, durable natural materials and flexible layouts.

The specification includes natural stone throughout, upgraded acoustic glazing, V-ZUG appliances and fully enclosed storage rooms, alongside an amenity offering focused on wellness, entertainment and everyday convenience.&nbsp;

Residents will have access to a gym and yoga studio, a wellness centre featuring traditional and infrared saunas, a cold therapy shower and treatment room, as well as a residents' lounge and golf simulator/cinema room for entertainment.&nbsp;Kooyongkoot has also considered the everyday convenience of its residents by offering a private carwash and pet wash facilities on site as well as dedicated parcel lockers and oversized fully enclosed storage rooms.&nbsp;

[smartcode_project:default project_id=102717 project_image_fid=355303]

The project's attention to detail has already resonated with buyers. Earlier this year, Kooyongkoot recorded one of Boroondara's highest apartment sales when an $8 million penthouse was purchased by a Melbourne CEO downsizing from a nearby family home.

"Every detail feels deliberate, from the overall design down to the smallest touches," the purchaser said.

"The level of quality and refinement is exceptional, but what really sold it was how liveable it felt... It felt like a place where everything had been considered, not just a luxury building."

[smartcode_project:default project_id=102717 project_image_fid=355304]

Sustainability also formed a key part of both award submissions. Kooyongkoot is targeting a minimum 7.5-star NatHERS rating across all residences, supported by passive design principles, high-performance glazing, EV charging infrastructure, water reuse systems and a wellness model focused on lower-energy dry facilities rather than pools and large wet areas.

Located within walking distance of Scotch College, Methodist Ladies' College, Koo​yong Lawn Tennis Club, Aubur​n Village and Camberwell Junction, Kooyongkoot continues to target owner-occupiers looking to remain in Melbourne's inner east without compromising on space or quality. A limited selection of two, three and four-bedroom residences remains available, with prices starting from $1.9 million.

[smartcode_project_cta:default project_id=102717]

Kooyongkoot wins Gold and Silver at Better Future Melbourne Design Awards

New apartment supply has become increasingly constrained across <a href="https://www.apartments.com.au/developments/parramatta-nsw-2150">Parramatta</a> in recent years, with fewer projects progressing through to completion as development conditions have become more challenging.

It makes <a href="https://www.apartments.com.au/developers/novm">NOVM</a>'s 2021-completed <a href="https://www.apartments.com.au/buildings/the-lennox-parramatta-12-phillip-street-parramatta-nsw-2150">The Lennox</a> one of the most recently completed residential towers on the Parramatta River, and among the newest apartment developments in Sydney's second CBD.

With the project largely completed before the sharp escalation in construction costs and inflation following the pandemic, The Lennox is now offering pricing that would be difficult to replicate in a comparable new development in Parramatta today, or across much of Western Sydney.

The majority of the 413 apartments at The Lennox sold before and shortly after completion. A limited release of the remaining apartments has recently been brought to market by capital partner <a href="https://www.apartments.com.au/project-marketer/equitifund-group">Equitifund</a>, with entry-level pricing from $700,000 and two-bedroom apartments available from under $1 million.

Rising above the Parramatta River at 12 Phillip Street, The Lennox comprises one, two, three and four-bedroom apartments, appealing to first home buyers, young professionals, families, downsizers and interstate investors seeking a completed apartment in one of Australia's fastest-growing economic centres.

[smartcode_project:default project_id=5743 project_image_fid=372394]

Rather than positioning Parramatta as an alternative to Sydney's CBD, Equitifund believes the city has reached a point where it stands on its own merits.

"Parramatta is no longer simply an alternative to Sydney CBD, it's becoming a destination in its own right," Equitifund Executive Chairman Greg Huxley said.

"The Lennox captures that evolution with a level of quality and amenity that's difficult to match at its price point."

[smartcode_project:default project_id=5743 project_image_fid=953]

Designed by <a href="https://www.apartments.com.au/architects/marchese-partners">Marchese Partners</a>, the tower responds directly to its riverfront setting through expansive glazing and open-plan layouts that maximise views across the Parramatta River and city skyline. Interiors feature engineered timber flooring, stone benchtops, stainless steel appliances and floor-to-ceiling glazing, while generous balconies extend the living spaces outdoors.

Marchese Partners says the project was conceived to balance high-quality apartment living with practical, long-term functionality, pairing larger, efficient floorplans with amenities more commonly associated with five-star hotels.

That emphasis continues through the resident facilities, which include a 20-metre rooftop swimming pool, fully equipped gym and wellness spaces, full-time concierge, a residents' lounge, function room, private lifts, secure basement parking and rooftop communal areas overlooking the Parramatta River. Ground-floor boardwalk retail and dining further activate the riverfront and integrate the building into the surrounding public realm.

[smartcode_project:default project_id=5743 project_image_fid=925]

Australian housing and finance group Equitifund has secured the remaining apartments, believing there are few completed apartment opportunities in Parramatta that offer the same combination of location, amenity and pricing.

Equitifund National Sales Director Ben Hamblett says buyers are increasingly recognising that premium apartment living no longer needs to come with Sydney CBD pricing.

"The Lennox is where aspirational living becomes attainable," Hamblett said.

"Wake to river and mountain views, step into Sydney's Second CBD, and arrive home to resort-calibre amenities, all without the harbour price tag."

Hamblett says owner-occupiers are also attracted by the convenience of having Westfield Parramatta, Church Street's dining precinct, Parramatta Park, Riverside Theatres, Western Sydney University and major transport connections all within walking distance.

"At The Lennox, lifestyle is not an afterthought, it is the foundation."

[smartcode_project:default project_id=5743 project_image_fid=5374]

The Lennox places residents within walking distance of Parramatta Square, Westfield Parramatta, Church Street Eat Street, Parramatta Station, the ferry wharf, Light Rail, the future Sydney Metro West, Parramatta Park and CommBank Stadium, reinforcing Parramatta's position as one of Australia's most connected metropolitan centres outside Sydney's CBD.

Equitifund says buyers visiting the display suite consistently comment on the quality of the finishes, generous floorplans, river and skyline views, and the walkability of the location. The project has attracted a broad mix of local professionals, upsizers, downsizers, buyers relocating from Sydney's inner suburbs and interstate investors seeking long-term growth opportunities.

That demand aligns with Parramatta's continued evolution as an economic powerhouse. Equitifund Research and Market Insights specialist John Bekiaris says sustained population growth, infrastructure investment and expanding employment opportunities continue to support long-term housing demand across the city.

"Parramatta has evolved from a satellite city into one of Australia's most important economic centres. Population growth, infrastructure investment and employment are all supporting sustained long-term housing demand."

[smartcode_project_cta:default project_id=5743]

The apartment price gap drawing Sydney buyers west

A luxury beachfront apartment at Rainbow Bay has more than doubled in value since it sold off the plan six years ago, setting a new local apartment record in the process.

The three-bedroom apartment in the Flow development on Petrie Street, the first of four new projects locally by Paul Gedoun's S&amp;S Projects, has sold for $7.4 million, after originally selling for $3.27 million when the project launched in 2020.

The seventh-floor apartment, comprising 187 sqm of internal living space and a 54 sqm balcony overlooking Froggies Beach and Snapper Rocks, was purchased by a local family.

The transaction was negotiated by Pezet Matheson director Kerry Pezet and equates to more than $30,000 per sqm.

Pezet said the sale reflected the limited opportunities to buy into the boutique beachfront development.

"The sale highlights the rarity of opportunities within the boutique beachfront development, where residences seldom become available," Pezet said.

"Flow is one of the Gold Coast's most tightly held buildings. Buyers from our database move quickly when residences become available, and achieving an off-market sale at $7.4 million demonstrates the depth of demand for property of this calibre."

<img alt="Flow" data-entity-type="file" data-entity-uuid="c585b206-2130-4eee-a50c-3f27c51a7c70" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-07-06%20at%208.33.25%E2%80%AFPM.png?VersionId=m3pHRDV62Y3fvN.XQuQHq.52ilTWpRLf" />

Flow was the first of four luxury apartment developments delivered by Paul Gedoun's S&amp;S Projects at Rainbow Bay and was completed in 2023.

Positioned on the beachfront overlooking Snapper Rocks, the residence includes three bedrooms, three bathrooms, a powder room and views stretching north along the coastline towards Surfers Paradise.

Pezet Matheson Residential principal Mitchell Lambert said buyers continued to prioritise quality beachfront apartments in tightly held locations.

"Flow Residences offers a rare combination of elevated beachfront positioning, architectural excellence, comprehensive resident amenity and premium finishes, which is exactly what discerning purchasers are seeking," Lambert said.

"The transaction further reinforces Rainbow Bay's reputation as one of Australia's premier coastal lifestyle destinations, where limited supply and growing demand continue to support strong market performance."

Pezet Matheson originally marketed and sold out Flow off the plan, making the latest transaction a return to one of the project's original buyers.

Paul Gedoun is selling his third project, <a href="https://www.apartments.com.au/new-apartments/radia-rainbow-bay-271-boundary-street-coolangatta-qld-4225">Radia Rainbow Bay</a>, after recently completing, and selling out, <a href="https://www.apartments.com.au/buildings/esprit-217-227-boundary-street-coolangatta-qld-4225">Esprit</a>. He has plans for a <a href="https://www.apartments.com.au/news/qld/first-look-s-s-projects-proposes-88-apartment-wellness-tower-at-coolangattas-boundary-street">fourth building</a>, 88 apartments on <a href="https://www.apartments.com.au/new-apartments/209-213-boundary-street-coolangatta-qld-4225">Boundary Street</a>.

Rainbow Bay apartment doubles in price since off the plan sale during pandemic

Green Cities

<html><body>
GUEST OBSERVATION
You may mock the national anthem by singing “Our land abounds in nature strips” but what you might not know is how true that is.
In Melbourne, for example, <a href="https://www.sciencedirect.com/science/article/pii/S1618866719300718" target="_blank">more than a third of all public green space is nature strips</a>. (That figure includes roundabouts, medians and other green bits of the street.)
That’s a remarkable amount. The nature strip is everywhere. A million small patches combine into a giant park spanning the city, making it a significant player in our urban ecosystems.
A second remarkable thing is that the nature strip is <a href="https://apo.org.au/sites/default/files/resource-files/2007/11/apo-nid60258-1105966.pdf" target="_blank">public land that private citizens are required by law to maintain</a>. Councils manage the trees, but we residents mow the lawn.
What are the rules on nature strips?
<a href="https://images.theconversation.com/files/296146/original/file-20191009-3872-1i673y4.JPG?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/296146/original/file-20191009-3872-1i673y4.JPG?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" alt=""></a>
Succulents, Agapanthus and Gazanias are the most common plantings on nature strips. Adrian Marshall CC BY 4.0, Author provided
Many residents go further and plant a street tree or some garden plants – succulents, Agapanthus and Gazanias are the most common. But the chances are that, whatever the garden on the nature strip, it’s against the rules.
The rules on nature strips vary from council to council. Some councils don’t allow any plantings. Others restrict plantings by height or allow only plants indigenous to the local area. In some areas, nature strips can only be planted to prevent erosion on steep slopes.
Some councils disallow food plants, for fear of historic lead contamination from leaded petrol. Others insist on no plants within a metre of the kerb and two metres of the footpath.
These bylaws are inconsistent and illogical. For instance, councils that insist on indigenous species nevertheless plant exotic street trees. Councils that say plants must be less than 30cm high to ensure they don’t block drivers’ sight lines still allow vehicles to park on the street, blocking sight lines.
Bylaws deny us many benefits
To have council bylaws restrict or disallow gardening in the nature strip flies in the face of common sense. Street greenery, whether it's trees, shrubs or lawn, provides many benefits. The science is in on this.
Urban wildlife uses street greenery for habitat and food and as green corridors for movement.
Even for those who mow, the lawns of nature strips are not just turf grass. They are home to over 150 species of plants, based on my yet-to-be-published survey data for nearly 50 neighbourhoods, confirming <a href="https://link.springer.com/article/10.1007/s11252-009-0098-7" target="_blank">earlier studies</a>. Many of these, like the clovers, provide important resources for pollinators.
One <a href="https://www.propertyobserver.com.au/https://www.nrs.fs.fed.us/pubs/55816" target="_blank">US study</a> showed that changing from a weekly mow to every three weeks increased the number of flowers in a lawn by 250%. Less mowing is good news for bees and butterflies.
An unpublished recent survey by the author and colleagues found gardening in the nature strip adds native plants to the streetscape, increases biodiversity and add structural complexity (more layers of plants, more types of stuff), which is important for many species.
<a href="https://images.theconversation.com/files/296397/original/file-20191010-188823-3m94cd.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/296397/original/file-20191010-188823-3m94cd.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt=""></a>
The greater the diversity of plantings, the greater the benefits a nature strip can provide. <a href="https://www.flickr.com/photos/tedxmelbourne/9642464172/in/photolist-hj8dyc-skaU1u-dREut-eJsU1F-ffLmZK-indYV3-cLiW2J-vB2sc-7NsaK4-4VkF3d-yGjbRF-beH7sn-6Y5uUZ-rxC4mN-6LgaCq-8uZkP8-fFMrYB-fFMzz6-959BCc-fFMqN6-9XyM3R-8uZkQZ-fG59Eh-fG55kj-MdakbU-zKkV6-9A3mjp-2hgzR2Y-2gLLfma-2gLM1dK-2gjDcaq-fG56q1-V4CxJS-2EepMw-AJYA3h-8PLEFM-2Nnv4q-3HCckP-8LfDb6-F9XHNG-fG5dib-9hzViT-d5L2G-fG57A5-7tQdTT-vh8B5S-2d9eEDd-2gtBYEp-fFMxhv-6tVDoj" target="_blank">TEDxMelbourne/Flickr</a>, <a href="http://creativecommons.org/licenses/by-nc-nd/4.0/" target="_blank">CC BY-NC-ND</a>
<a href="https://www.propertyobserver.com.au/https://pubag.nal.usda.gov/catalog/1135097" target="_blank">Street greenery helps</a> water <a href="https://www.propertyobserver.com.au/https://www.ncbi.nlm.nih.gov/pubmed/27094440" target="_blank">soak into the ground</a>, filtering out pollutants, recharging aquifers and making rivers healthier. It <a href="https://www.propertyobserver.com.au/https://www.ncbi.nlm.nih.gov/pubmed/26828172" target="_blank">cools streets</a> and <a href="https://www.sciencedirect.com/science/article/pii/S0169204614002503" target="_blank">helps counter the urban heat island effect</a>. It also <a href="https://www.sciencedirect.com/science/article/abs/pii/S0277953613003742" target="_blank">promotes a sense of community</a>, <a href="https://www.sciencedirect.com/science/article/pii/S2214140518303281" target="_blank">encourages walking</a> and lowers the incidence of <a href="https://www.sciencedirect.com/science/article/pii/S2214140518303281" target="_blank">heart disease</a>, <a href="https://www.propertyobserver.com.au/https://jamanetwork.com/journals/jama/fullarticle/2524191" target="_blank">diabetes</a>, <a href="https://theconversation.com/children-living-in-green-neighbourhoods-are-less-likely-to-develop-asthma-96190" target="_blank">asthma</a> and <a href="https://www.sciencedirect.com/science/article/pii/S0169204614002941" target="_blank">depression</a>.
But councils tend to be risk-averse. They worry they will be sued if someone trips on groundcover or stubs their toe on an out-of-place garden gnome.
Fortunately, this risk aversion isn’t universal. For instance, the <a href="https://www.vincent.wa.gov.au/residents/environment/environmental-sustainability/news-events/adopt-a-verge.aspx" target="_blank">City of Vincent</a> in Western Australia is so keen for residents to convert lawn to waterwise plantings that it will remove turf and provide native plants.
But, as climate change looms, stubbed toes are not the main risk we should be worrying about. Rather, we must urgently remake our cities and our culture for sustainability and resilience.
Gardening becomes a neighbourly act
One of the great things about gardening in the nature strip is that people are <a href="https://www.sciencedirect.com/science/article/pii/S1618866719302535" target="_blank">more likely to do it if their neighbours do it</a>. It’s contagious, a positive-feedback loop creating a greener street.
Our recent survey found residents who garden in the nature strip have a greater <a href="http://www.communityscience.com/news-detail.php?news=114" target="_blank">sense of community</a> than those who don’t.
<a href="https://images.theconversation.com/files/296997/original/file-20191015-98653-wopjbq.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/296997/original/file-20191015-98653-wopjbq.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt=""></a>
A well-designed street garden, fully covering the nature strip, allowing pedestrian access to cars and using indigenous plants. Adrian Marshall CC BY 4.0, Author provided
Interestingly, the benefits nature strips provide are <a href="https://www.sciencedirect.com/science/article/pii/S1618866719302535" target="_blank">not equally distributed across the city</a>. For instance, newer neighbourhoods have more nature strip than older neighbourhoods (though their trees are younger). People garden the nature strip more on minor roads than major roads, and in more socially advantaged neighbourhoods.
Almost a <a href="https://www.sciencedirect.com/science/article/pii/S1618866719302535" target="_blank">quarter of residential properties</a> in Melbourne have some sort of nature strip gardening. If councils were to encourage this activity we might achieve more street greening with little cost to our cash-strapped councils. Such encouragement would also free many residents of their sense of frustration at being required to maintain the nature strip but forbidden to do anything more than mow.
Given that more than a third of our public green space is nature strip, the many small actions of residents can add up to substantial positive change.<img src="https://counter.theconversation.com/content/124781/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">
Adrian Marshall, Lecturer, Landscape Architecture and Urban Ecology, University of Melbourne.
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/our-land-abounds-in-nature-strips-surely-we-can-do-more-than-mow-a-third-of-urban-green-space-124781" target="_blank">original article</a>.
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j.ballantyne1990-6AQqhLzZaK

Our land abounds in nature strips – surely we can do more than mow a third of urban green space

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GUEST OBSERVATION
Greening our cities has become one of the great <a href="https://newclimateeconomy.report/2018/wp-content/uploads/sites/6/2018/09/NCE_2018_FULL-REPORT.pdf" target="_blank">global imperatives</a> of the 21st century including to tackle climate change. And Australia’s sprawling car-based cities are gradually changing to embrace green or living infrastructure.
Green cities bring together elements of architectural design and urban planning, often combining plants and built infrastructure to meet the needs of humans, such as our <a href="https://en.wikipedia.org/wiki/Biophilia_hypothesis" target="_blank">love of nature</a>.
Trees, plants, waterways and wetlands can deliver climate conditioning, cooling cities by reducing the urban heat island effect. They also absorb carbon dioxide, filter wastewater and create habitats.
Living elements can be incorporated with built infrastructure at a range of scales, from individual buildings with green walls and roofs, through to citywide strategies. And there are a <a href="http://www.curf.com.au/files/view/?id=633" target="_blank">suite of strategies</a> to guide more widespread integration of biological elements and ecological processes in cities.
In recent months, we <a href="https://mainstreaminggreeninfrastructure.com/reports/Barbara%20Norman%20mainstreaming%20GI%20in%20Australia.pdf" target="_blank">profiled Australian examples of living infrastructure</a> that show some of Australia’s approaches to developing green infrastructure, from greening Melbourne’s laneways to Canberra’s urban forest. These cities are already redesigning their water systems and implementing urban forest strategies to create green belts and protect and restore waterways.
Melbourne and Canberra provide some useful examples of the green cities movement, but to make it mainstream, these techniques need to be adopted widely through policies supporting more holistic and better integrated urban planning.
Why we need urban forests
Percival Alfred Yeoman was one of the first Australian pioneers of urban forestry. In 1971, <a href="https://www.propertyobserver.com.au/https://trove.nla.gov.au/work/8870297?q&amp;versionId=12235056" target="_blank">he articulated</a> a clear vision for enhancing cities with trees.
Local governments in Adelaide, Brisbane, Melbourne and Sydney, are implementing his ideas, committing to <a href="https://202020vision.com.au/about-the-vision/" target="_blank">ambitious increases in urban canopy cover</a>. Their targets range from 25% to 40%.
This <a href="https://202020vision.com.au/the-network/" target="_blank">revived interest in urban forestry</a> comes from its well documented potential for accelerating the transition to more climate adaptive cities.
The social, environmental and economic benefits of urban trees, or “ecosystem services”, are becoming better recognised, including for their recreational and cultural values.
<h2>Melbourne and Canberra are leading Australia’s green cities movement</h2>
<h3>Melbourne</h3>
Melbourne has a rich legacy of urban parks and green belts thanks to planning decisions made in the city’s early years.
These parks underpin a new wave of urban greening, with projects that aim to deliver action on climate change, biodiversity and the health and well-being of communities.
The Melbourne green infrastructure <a href="https://www.melbourne.vic.gov.au/community/greening-the-city/green-infrastructure/Pages/green-infrastructure.aspx" target="_blank">plan</a> includes: 
<ul>
<li>a “<a href="http://www.growinggreenguide.org/" target="_blank">growing green guide</a>” that provides practical advice to community and business groups on planning, design and maintenance of green infrastructure </li>
<li>the <a href="http://www.melbourne.vic.gov.au/community/%20greening-the-city/green-infrastructure/Pages/greeninglaneways.%20aspx">greening laneways strategy</a>, which builds on the commercial revitalisation of Melbourne’s laneways over three decades. Laneways with greening potential were mapped and demonstration project developed to display techniques for making them more vibrant green spaces for business, tourists and locals to enjoy</li>
<li>an <a href="http://www.melbourne.vic.gov.au/community/parks-openspaces/%20urban-forest/Pages/urban-forest-strategy.aspx" target="_blank">urban forest strategy</a>, with an overall target of 40% canopy cover by 2040. And 5 to 8 million trees will be planted over coming decades for the greater Melbourne metropolis.</li>
</ul>
<iframe src="https://www.youtube.com/embed/RBtAUUzH7Uo?wmode=transparent&amp;start=0" frameborder="0" width="440" height="260"></iframe>
<h3>Canberra</h3>
Canberra is often described as “a city within a landscape” and the “bush capital”. But its higher altitude, hot dry summers and cold winters bring a set of challenges for green infrastructure.
With more than 800,000 planted trees, Canberra is an urban forest. But these trees require special care and attention given they are ageing and suffering from a hotter, drier climate.
Wildfire also represents a significant risk where urban and rural areas connect. This means Canberra needs urban forests that will cool the city in warmer months without also escalating wildfire risks.
The <a href="/news">ACT Government</a> has committed to action on climate change, legislating targets for 100% renewable electricity by 2020 and carbon neutrality (no net carbon emissions) by 2045.
Integrated approach needed to expand green cities
Greening cities requires a holistic approach – for instance, not leaving the health of waterways entirely to water engineers.
Greening cities is more than just a <a href="https://www.academia.edu/38053856/The_city_as_nature_and_the_nature_of_the_city_-_climate_adaptation_using_living_infrastructure_governance_and_integration_challenges" target="_blank">technical challenge</a>. Transforming the form and functions of urban systems, through urban forests and other living infrastructure, <a href="http://www.curf.com.au/files/view/?id=633" target="_blank">requires</a> greater leadership and political commitment, integrated planning and community participation, and long-term thinking.
An integrated approach to greening cities involves mapping diverse opportunities and mobilising support for change in the community. As an example, urban storm water can be a productive resource when used in constructed wetlands or to irrigate urban forests.
And often urban drainage lines and wastelands can be transformed into green spaces, but it’s worth recognising there is intense competition for space for housing.
But for more widespread adoption of integration, institutional support within local governments and metropolitan water and planning agencies is needed.
So to scale up living infrastructure in our urban landscapes, we must learn from local success stories, conduct more research, and better understand how to deal with climate adaptation and mitigation challenges.
Jason Alexandra, PhD candidate, RMIT University.
Jason Alexandra would like to gratefully acknowledge the contributions of Barbara Norman to this article.<img src="https://counter.theconversation.com/content/119933/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/for-green-cities-to-become-mainstream-we-need-to-learn-from-local-success-stories-and-scale-up-119933" target="_blank">original article</a>.
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For green cities to become mainstream, we need to learn from local success stories and scale up

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EXPERT OBSERVER
Urgent and radical change in urban transport policies and practices will benefit the planet and future generations.
The UN Intergovernmental Panel on Climate Change recently warned that <a href="https://www.theguardian.com/environment/2018/oct/08/how-the-un-climate-panel-ipcc-got-to-15c-threshold-timeline" target="_blank">global warming could reach 1.5℃ as early as 2030</a>. The landmark <a href="http://www.ipcc.ch/report/sr15/">report</a> by leading scientists urged nations to do more to avert an impending crisis.
<a href="https://www.vox.com/2018/10/8/17948832/climate-change-global-warming-un-ipcc-report" target="_blank">We have 12 years</a>, the report said, to contain greenhouse gas emissions. This includes serious efforts to reduce transport emissions. 
In Australia, transport is the <a href="https://www.climatecouncil.org.au/resources/transport-fact-sheet/" target="_blank">third-largest source of greenhouse gases</a>, accounting for around <a href="/news">17% of emissions</a>. Passenger cars account for <a href="https://www.climatecouncil.org.au/resources/transport-fact-sheet/" target="_blank">around half of our transport emissions</a>.
The transport sector is also one of the strongest factors in emissions growth in Australia. Emissions from transport have <a href="/news">increased nearly 60% since 1990</a> – <a href="https://www.climatecouncil.org.au/resources/transport-fact-sheet/" target="_blank">more than any other sector</a>. Australia is ranked <a href="https://aceee.org/research-report/i1801" target="_blank">20th out of 25 of the largest energy-using countries for transport energy efficiency</a>.
Cities around the world have many opportunities to reduce emissions. But this requires renewed thinking and real commitment to change.
Our planet can’t survive our old transport habits
Past (and still current) practices in <a href="https://theconversation.com/australian-infrastructure-plan-has-some-way-to-go-to-give-our-cities-what-they-need-54954" target="_blank">urban and transport planning</a> are fundamental causes of the transport problems we face today.
Over the past half-century, cities worldwide have <a href="https://theconversation.com/density-sprawl-growth-how-australian-cities-have-changed-in-the-last-30-years-65870" target="_blank">grown rapidly, leading to urban sprawl</a>. The result was high demand for motorised transport and, in turn, increased emissions.
The traffic gridlock on roads and motorways was the catalyst for most transport policy responses during that period. The solution prescribed for most cities was to <a href="https://theconversation.com/stuck-in-traffic-we-need-a-smarter-approach-to-congestion-than-building-more-roads-84774" target="_blank">build out of congestion by providing more infrastructure for private vehicles</a>. Limited attention was given to <a href="https://theconversation.com/on-the-road-research-can-improve-transport-across-australia-43643" target="_blank">managing travel demand</a> or improving other modes of transport.
Equating mobility with building more roads nurtured a tendency towards increased motorisation, reinforcing an ever-increasing inclination to expand the road network. The result was a range of unintended adverse <a href="http://www.oecd.org/economy/rethinking-urban-sprawl-9789264189881-en.htm" target="_blank">environmental, social and economic consequences</a>. Most of these are rooted in the high priority given to private vehicles.
What are the opportunities to change?
The various strategies to move our cities in the right direction can be grouped into four broad categories: avoid, shift, share, and improve. Major policy, behaviour and technology changes are required to make these strategies work.
Avoid strategies aim to slow the growth of travel. They include initiatives to reduce trip lengths, such as <a href="https://theconversation.com/higher-density-and-diversity-apartments-are-australia-at-its-most-multicultural-97176" target="_blank">high-density</a> and <a href="https://theconversation.com/a-place-to-live-work-and-play-why-mixed-use-developments-are-making-a-comeback-73142" target="_blank">mixed land use developments</a>. Other options decrease private vehicle travel – for example, through car/ride sharing and <a href="https://www.gizmodo.com.au/2015/12/how-to-fix-traffic-congestion-in-australia/" target="_blank">congestion pricing</a>. And <a href="https://theconversation.com/go-forth-and-telework-but-will-it-work-for-you-10682" target="_blank">teleworking</a> and e-commerce help people avoid private car trips altogether.
Shanghai’s Hongqiao transport hub is a unique example of an <a href="https://uic.org/cdrom/2013/nextstation/doc/proceedings/3Ajianping.pdf" target="_blank">integrated air, rail and mixed land use development</a>. It combines Hongqiao’s airport, metro subway lines, and regional high-speed rail. A low-carbon residential and commercial <a href="https://www.usgbc.org/articles/building-shanghai-tomorrow-hongqiao-cbds-low-carbon-transportation-hub">precinct</a> surrounds the hub.
<a href="https://images.theconversation.com/files/246775/original/file-20181122-161609-x8oxhj.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/246775/original/file-20181122-161609-x8oxhj.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt=""></a>
Layout of Shanghai Hongqiao integrated transport hub.<a href="https://www.researchgate.net/figure/Layout-of-Shanghai-hongqiao-integrated-transport-hub-SHITH_fig1_309453749"> </a>
Shift strategies encourage travellers to switch from private vehicles to public transport, walking and cycling. This includes improving bus routes and service frequency.
<a href="https://theconversation.com/stuck-in-traffic-we-need-a-smarter-approach-to-congestion-than-building-more-roads-84774" target="_blank">Pricing strategies</a> that discourage private vehicles and encourage other modes of transport <a href="https://www.ted.com/talks/jonas_eliasson_how_to_solve_traffic_jams" target="_blank">can also be effective</a>. Policies that include <a href="https://www.theguardian.com/money/2018/jul/02/norway-electric-cars-subsidies-fossil-fuel" target="_blank">incentives</a> that make electric vehicles more affordable have been shown to encourage the shift.
Norway is an undisputed world leader in electric vehicle uptake. <a href="https://www.theguardian.com/environment/2017/dec/25/norway-leads-way-electric-cars-green-taxation-shift" target="_blank">Nearly a third of all new cars sold in 2017 were a plug-in model</a>. The electric vehicle market share was expected to be as much as 40% within a year.
An electric vehicle charging station in the Norwegian capital Oslo. <a href="https://www.shutterstock.com/image-photo/electric-car-charging-station-oslo-eco-670494520?irgwc=1&amp;utm_medium=Affiliate&amp;utm_campaign=TinEye&amp;utm_source=77643&amp;utm_term="> </a>
Share strategies affect car ownership. New sharing economy businesses are already moving people, goods and services. Shared mobility, rather than car ownership, is providing city dwellers with a real alternative.
This trend is likely to continue and will pose significant challenges to car ownership models.
Uber claims that its <a href="https://www.uber.com/en-IN/blog/mumbai/onestepforward-with-uberpool/" target="_blank">carpooling service in Mumbai</a> saved 936,000 litres of fuel and reduced greenhouse gas emissions by 2,662 metric tonnes within one year. It also reports that <a href="http://www.cityam.com/242760/uber-reveals-london-ride-sharing-figures-for-uberpool" target="_blank">UberPool in London</a> achieved a reduction of more than 1.1 million driving kilometres in just six months.
<img src="https://images.theconversation.com/files/244778/original/file-20181109-35554-ym7dj5.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt="">
UberPool is available in inner Melbourne suburbs. Trip must begin and end in this area.
Improve strategies promote the use of technologies to optimise performance of transport modes and <a href="https://theconversation.com/intelligent-infrastructure-when-roads-and-vehicles-talk-to-each-other-7865" target="_blank">intelligent infrastructure</a>. These include <a href="https://www.weforum.org/agenda/2015/03/why-our-cities-need-smart-transport/" target="_blank">intelligent transport systems</a>, urban information technologies and emerging solutions such as <a href="https://www.itf-oecd.org/files/urban-mobility-system-upgrade" target="_blank">autonomous mobility</a>.
Our <a href="https://www.tandfonline.com/doi/abs/10.1080/23249935.2018.1528485?journalCode=ttra21" target="_blank">research</a> shows that sharing 80% of autonomous vehicles will reduce net emissions by up to 20%. The benefits increase with wider adoption of autonomous shared electric vehicles.
Autonomous vehicles can offer first- and last-kilometre solutions, especially in outer suburbs with limited public transport services. <a href="https://www.shutterstock.com/image-photo/iot-smart-automotive-driverless-car-artificial-794528215?irgwc=1&amp;utm_medium=Affiliate&amp;utm_campaign=TinEye&amp;utm_source=77643&amp;utm_term="> </a>
The urgency and benefits of steering our cities towards a path of low-carbon mobility are unmistakable. This was recognised in the past but progress has been slow. Today, the changing context for how we build future cities – smart, healthy and low-carbon – presents new opportunities.
If well planned and implemented, these four interventions will collectively achieve transport emission reduction targets. They will also improve access to the jobs and opportunities that are preconditions for sound economic development in cities around the world.<img src="https://counter.theconversation.com/content/106076/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">
<a href="https://theconversation.com/profiles/hussein-dia-110689" target="_blank">Hussein Dia</a>, Chair, Department of Civil and Construction Engineering, <a href="http://theconversation.com/institutions/swinburne-university-of-technology-767" target="_blank">Swinburne University of Technology</a>
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/four-ways-our-cities-can-cut-transport-emissions-in-a-hurry-avoid-shift-share-and-improve-106076" target="_blank">original article</a>.
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Four ways our cities can cut transport emissions in a hurry

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Population growth has seen skylines creep ever higher and entire cities rise from ocean depths. The latest “ocean city” is the Chinese-developed <a href="https://cgpvforestcity.wordpress.com/category/press-release/" target="_blank">Forest City project</a>. By 2045, four artificial islands in Malaysia will cover 14km² of ocean (an area larger than 10,000 Olympic swimming pools), and support 700,000 residents.
Often overlooked, however, is the damage that artificial islands can cause to vital seafloor ecosystems. But it doesn’t have to be this way. If proper planning and science are integrated, we can develop the design strategies that will help build the “blue-green” ocean cities of tomorrow.
Colonising the ocean frontier
Ever growing numbers of human-made structures are <a href="https://theconversation.com/concrete-coastlines-its-time-to-tackle-our-marine-urban-sprawl-38175" target="_blank">occupying our oceans</a>. Cities built on artificial islands in the ocean are providing a solution for urban planners trying to manage the population squeeze.
And yet, so-called “<a href="https://www.propertyobserver.com.au/https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1890/110246?af=R" target="_blank">ocean sprawl</a>” dates as far back as <a href="http://www1.frm.utn.edu.ar/laboratorio_hidraulica/Biblioteca_Virtual/Coastal%20Engineering%20Manual%20-%20Part%20I/Part_I-Chap_3entire.pdf" target="_blank">Ancient Egypt</a>. Over the past few centuries, artificial islands have been built through land reclamation. Land reclamation is the process of creating new land from existing water bodies.
<img src="https://images.theconversation.com/files/211671/original/file-20180323-54878-1a6j7pa.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt="">
Atlantis, The Palm Hotel in Dubai, United Arab Emirates is built on an entirely artificial island. Shutterstock
The Netherlands, for instance, has been draining lakes and expanding its coastline to <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/ird.340" target="_blank">fight the advance of the sea</a> since the 1500s. The Dutch actually built one of the first and largest artificial islands, which is <a href="https://www.tourism-review.com/travel-tourism-magazine-flevoland-worlds-largest-artificial-island--article2372" target="_blank">now home to some 400,000 people</a>. Japan’s third-busiest airport, the <a href="https://www.kansai-airport.or.jp/en/" target="_blank">Kansai International Airport</a>, was built on an artificial island in 1994. China has also been building into the oceans, reclaiming <a href="https://www.sciencedirect.com/science/article/pii/S0964569114000696" target="_blank">more than 13,000km² of seafloor</a> and an estimated <a href="https://www.propertyobserver.com.au/https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1890/130260" target="_blank">65% of tidal habitat</a> since the 1950s.
<img src="https://images.theconversation.com/files/211672/original/file-20180323-54881-j4i3c.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" alt="">
The artificial Eden Island in Mahe, Seychelles. Shutterstock
Using Google maps, we were able to identify more than 450 artificial islands around the world, including the famous Palm Islands of Dubai. These are often celebrated as <a href="https://www.iveyengineering.com/modern-engineering-marvels/" target="_blank">engineering marvels</a>, but at what cost to the marine environment?
<h2>We can’t ignore what lies beneath</h2>
Marine habitats have always been essential for human life in coastal regions. They provide food, building and crafting materials, and less-known services such as <a href="https://esajournals.onlinelibrary.wiley.com/doi/full/10.1890/10-1510.1" target="_blank">coastal protection, nutrient cycling and pollution filtration</a>.
<img src="https://images.theconversation.com/files/211673/original/file-20180323-54884-1t8t6ao.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" alt="">
One of the World Map islands in Dubai, United Arab Emirates. Shutterstock
The creation of artificial islands causes <a href="https://www.sciencedirect.com/science/article/pii/S0022098117300606" target="_blank">large changes to the seabed</a> by permanently smothering local habitats. In many parts of the world, existing habitats provide the foundation for artificial island construction. For instance, artificial islands in the tropics are often built directly on top of coral reefs. This leads to considerable destruction of already threatened ecosystems.
Land reclamation also impacts nearby habitats that are particularly sensitive to murky waters, such as coral reefs and seagrass beds. In Singapore, land reclamation is associated with <a href="https://www.researchgate.net/profile/L_Chou/publication/285088156_Response_of_Singapore_reefs_to_land_reclamation/links/569c63b008aea1476954792e.pdf" target="_blank">coral reef decline due to sedimentation and resulting light reductions</a>. Singapore has lost <a href="https://www.sciencedirect.com/science/article/pii/S096456911400355X" target="_blank">nearly 45% of the country’s intertidal reef flats and almost 40% of intertidal mudflats</a>.
When the ecological, economic, and social value of marine habitats are considered, artificial islands and ocean sprawl seem to be indulgences that we cannot afford. The effects would be akin to the suburban sprawl of the 20th century. To avoid this cost, we need to address the complexities of the underwater world in urban planning and development.
<h2>“Blue urbanism”</h2>
In his book <a href="http://blueurbanism.org/blue-urbanism-cities-and-oceans-together/" target="_blank">Blue Urbanism</a>, Timothy Beatley calls for urban planners to consider and value ocean ecosystems. He argues that we need to recognise the <a href="http://bigthink.com/articles/need-a-nature-break-why-blue-is-the-new-green-for-stress-relief">psychological value of human connections to blue space</a>, and extend green practices on land into marine environments. While some artificial island developments such as the Forest City project are touted as “eco-cities”, more could be done both to minimise impacts below the waterline and integrate underwater environments into city life.
Why not combine a “Forest City” with the principles of a “<a href="https://theconversation.com/chinas-sponge-cities-aim-to-re-use-70-of-rainwater-heres-how-83327">Sponge City</a>”? While native plantings in a forest city could help to reduce air pollution, sponge cities seek to “absorb” and reuse rainwater, thus reducing pollution entering the oceans through <a href="https://theconversation.com/massive-storms-are-pumping-pollution-into-our-oceans-time-to-clean-up-our-cities-60551">stormwater runoff</a>. Around artificial islands, developers could also embrace the <a href="https://www.scapestudio.com/projects/oyster-tecture/" target="_blank">water filtration powerhouse</a> of the oceans: active oyster reefs.
The location of future constructions should also be carefully evaluated to ensure the preservation of important marine habitats. Artificial islands have the potential to create <a href="https://theconversation.com/our-oceans-are-out-of-balance-can-we-learn-some-tips-from-feng-shui-64975" target="_blank">fragmented seascapes</a>, but with careful spatial planning and smart designs, they could create corridors for some <a href="https://mashable.com/2015/06/01/global-warming-huge-oceans-shift/#66PBDFJxyuq4" target="_blank">climate migrants</a> or those threatened species most at risk from habitat loss.
<img src="https://counter.theconversation.com/content/93843/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">Designs based on ecological principles can reduce the impacts of artificial islands on natural habitats. However, applications of “blue-green” infrastructure remain largely untested at large scales. New designs, building strategies and spatial planning that integrate seascapes and landscapes are an opportunity for both “smarter” cities and experimentation for the development of successful blue-green technologies.
<a href="https://theconversation.com/profiles/katherine-dafforn-155892" target="_blank">Katherine Dafforn</a>, Senior Research Associate in Marine Ecology, <a href="http://theconversation.com/institutions/unsw-1414" target="_blank">UNSW</a>; <a href="https://theconversation.com/profiles/ana-bugnot-159810" target="_blank">Ana Bugnot</a>, Research Associate, <a href="http://theconversation.com/institutions/unsw-1414" target="_blank">UNSW</a>; <a href="https://theconversation.com/profiles/eliza-heery-455058" target="_blank">Eliza Heery</a>, Research Fellow in Marine Ecology, <a href="http://theconversation.com/institutions/national-university-of-singapore-998" target="_blank">National University of Singapore</a>, and <a href="https://theconversation.com/profiles/mariana-mayer-pinto-155512" target="_blank">Mariana Mayer-Pinto</a>, Senior Research Associate in marine ecology, <a href="http://theconversation.com/institutions/unsw-1414">UNSW</a>
This article was originally published on <a href="http://theconversation.com" target="_blank">The Conversation</a>. Read the <a href="https://theconversation.com/future-ocean-cities-need-green-engineering-above-and-below-the-waterline-93843" target="_blank">original article</a>.
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jrobinson-rf4aSBido9

Green engineering needed above and below water in future 'ocean cities'

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<img src="https://counter.theconversation.edu.au/content/57114/count.gif" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
In the 1953 short story The Man Who Planted Trees, a lone shepherd plants thousands of trees, transforming a desolate valley into a vibrant forest with pleasant villages and unspoiled wilderness. The moral of this story is a simple one: that perseverance and planting trees can make places more desirable to live.
Across the United States, the US Forest Service is proving this, neighbourhood by neighbourhood.
Within some neighbourhoods, scientists are documenting a connection between trees and a specific social improvement: a reduction in crime. These studies combine modern mapping technology with spatial and economic statistics to compare crime levels between similar urban neighbourhoods in the same city.
This research is becoming increasingly widespread and sophisticated. According to Kathleen Wolf, a research social scientist with the University of Washington and the US Forest Service, this is “part of a movement to understand the role of nature in public health”. Wolf observes:
"Now that we’re in the era of Big Data, we’re seeing an acceleration of crime-related research in a wide variety of disciplines and fields. We’re also incorporating data on things like disparities of green in urban communities."
Not only do healthy, well-maintained trees provide shade and benefit the ecosystem, they can have a social meaning: that people in that neighbourhood look out for each other.
<h2>Progress in Baltimore</h2>
One of the places we are conducting this type of research is Baltimore. One of the oldest cities in US, Baltimore has more than 600,000 residents. It is known for its rich historical heritage, a picturesque inner harbour, crab cakes … and for having some of the worst crime and poverty levels in the nation.
According to recent estimates, 25 percent of Baltimore residents and 37 percent of Baltimore children live in poverty.
Faced with one of the highest homicide rates in the country, the city implemented a youth curfew law in 2014 to keep unaccompanied children off the streets at night.
Baltimore also has an extensive team of urban research scientists, affiliated with both the US Forest Service Baltimore Field Station and the Baltimore Ecosystem Study, and a proactive non-profit organisation, The Parks &amp; People Foundation. These entities are working together to demonstrate a connection between adding trees and reducing crime in under-served neighbourhoods.
We worked in a research collaboration to look at the relationship between urban tree cover and rates of robbery, burglary, theft and shooting in under-served neighbourhoods in Baltimore. After controlling for income, population density, block-scale tree canopy and housing type, we found that a 10% increase in tree canopy corresponded to a roughly 12 percent decrease in crime.
According to Valerie Rupp, director of community greening for The Parks &amp; People Foundation in Baltimore, people are taking back their neighbourhoods. “While crime still exists, there’s been a shift to more minor, less violent crimes,” she says.
<h2>Pride and goodwill in Philadelphia</h2>
Less than 150 kilometres northwest of Baltimore is the city of Philadelphia, another historic metropolis. With a population of more than 1.5 million, Philadelphia also has its share of big-city problems.
Although Philadelphia’s homicide rate is lower than Baltimore’s, the city has one of the highest homicide rates of the country’s ten most populous cities.
The US Forest Service Philadelphia Field Station is working with city groups such as the Parks and Recreation Department and the Philadelphia Water Department to establish the “triple bottom line”, meaning improvements in three broad areas of impact – environmental, social and economic.
In terms of crime reduction, our studies have found that “green” stormwater infrastructure improvements resulted in significant reductions in narcotics possession and theft. According to Philadelphia police detective Hugh Davis, one can feel neighbourhoods changing and becoming safer over time. Davis says:
"It often starts out as a grant program to make landscape improvements, and then residents start to take ownership. It improves neighbourhood pride and goodwill toward the city."
<h2>Developing ‘green courage’ in the inner city</h2>
The theory behind urban greening and reduced crime levels is that when under-served neighbourhoods are made more pleasant, it can result in a healthier sense of community. In turn, it makes those neighbourhoods less hospitable to criminal activity.
In places like Baltimore and Philadelphia, city departments are working with communities to give people what some urban sociologists call “green courage”. This occurs when residents become more willing to work together after seeing improvements in their neighbourhood.
At the end of the day, urban greening is not simply about planting trees. It’s about people working together to make neighbourhoods better places to live.
We are working alongside these efforts, helping to document and provide a scientific basis for the work to spread and continue. For those of us who are working toward these goals, we sometimes wonder: are we planting trees to organise people or are we organising people to plant trees?
The best answer is probably “yes” to both.
J. Morgan Grove is research forester, United States Forest Service, and can be contacted <a href="https://theconversation.com/profiles/j-morgan-grove-281187" target="_blank">here</a>.
Michelle Kondo is research Social Scientist, United States Forest Service and can be contacted <a href="https://theconversation.com/profiles/michelle-kondo-281190" target="_blank">here</a>.
Both are authors for The Conversation.
The authors wish to acknowledge the contribution of Brian Cooke, an editor and writer for the US Forest Service Northern Research Station, to the writing of this article.
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