One of North Sydney's best-known commercial buildings could become hundreds of new homes, with insurance giant Zurich Australia lodging a State Significant Development Application (SSDA) to transform 5 Blue Street into a mixed-use residential development above North Sydney Station.

Rather than demolishing the existing building and starting again, Zurich is proposing an adaptive reuse project that would convert the landmark office building into a 15-level residential development delivering 62 apartments, 86 affordable co-living dwellings, activated retail and significant upgrades to the Blue Street Plaza.

The proposal reflects a growing trend of commercial property owners repositioning ageing office assets into residential housing as Sydney grapples with housing supply shortages and changing workplace demand.

<img alt="Zurich" data-entity-type="file" data-entity-uuid="0bba7d12-06dc-4375-aad7-238c94b21ac5" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-07-22%20at%2010.42.05%E2%80%AFAM.png?VersionId=NJl5oLAEBDGuPmY3RnyliKODjMc8lvRh" />

Located directly above North Sydney Metro and train station, the 3,051 sqm site occupies one of the most strategically positioned parcels of land on Sydney's Lower North Shore.

Designed by fjcstudio, the proposal seeks to retain and adapt much of the existing structure while creating a contemporary residential address that better connects with the public domain surrounding North Sydney Station.

The application proposes two basement levels, ground floor retail, affordable co-living accommodation across the podium levels, and apartments above, while preserving and enhancing the publicly accessible Blue Street Plaza.

Rather than pursuing maximum apartment numbers, Zurich has opted for a housing mix heavily weighted towards larger owner-occupier residences.

The proposal includes 62 build-to-sell apartments comprising 12 one-bedroom, 19 two-bedroom, 29 three-bedroom apartments and two premium penthouses. It also incorporates 86 affordable co-living dwellings, which would be managed in perpetuity by a Community Housing Provider.

That balance between traditional apartments and affordable housing reflects the NSW Government's push to increase housing diversity around major transport infrastructure.

The proposal has been lodged concurrently with a rezoning application, with Zurich arguing the site is ideally positioned to support additional housing given its immediate proximity to public transport, employment and services.

"The proposal aims to respond to the housing challenges facing Sydney through the delivery of diverse housing types in a highly accessible location," the design report by fjcstudio states. It also seeks to improve pedestrian amenity through upgrades to Blue Street Plaza while creating a high-performing residential building that responds to the surrounding context.

<img alt="Zurich" data-entity-type="file" data-entity-uuid="36082e15-c636-4481-bb68-5a5f6443fe39" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-07-22%20at%2010.41.36%E2%80%AFAM.png?VersionId=5P6VD.fvmqjQfIG3TWWMRXxQWiQBjeFB" />

Rather than replacing the commercial building, fjcstudio has developed a design that works with the existing structural framework above the rail corridor, an approach that significantly reduces demolition while allowing the site to be repositioned as a mixed-use residential precinct.

The existing structural constraints have informed much of the building's design, including its relationship with Blue Street and surrounding public spaces.

The building has been designed as a slender tower rising above a clearly defined podium, with vertically expressed façades intended to reduce the perceived bulk while reinforcing North Sydney's emerging skyline.

According to fjcstudio, the architectural language responds directly to the surrounding commercial towers while maintaining a finer grain expression more closely aligned with the neighbouring Lavender Bay streetscape.

The tower incorporates articulated façade elements, landscaped podium edges and recessed upper levels to soften its appearance and improve pedestrian amenity below.

A significant component of the proposal is the revitalisation of Blue Street Plaza.

The existing public space has long served as one of the primary pedestrian connections between North Sydney Station, Greenwood Plaza and Blue Street, yet its role is expected to become even more important following the opening of Sydney Metro.

Zurich's proposal seeks to strengthen that role by improving landscaping, introducing new retail frontages, enhancing pedestrian permeability and creating more active edges throughout the day and evening.

Ground floor retail would wrap the plaza, while separate residential and co-living entries have been designed to improve wayfinding without reducing street activation.

Landscape design has been integrated throughout the podium and public realm, softening what is currently one of the most heavily urbanised parts of North Sydney.

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fjcstudio has carefully oriented apartments towards Sydney Harbour and the CBD while using privacy blades and articulated façades to minimise overlooking between neighbouring buildings.

Large framed openings along the western elevation maximise harbour outlooks, while the eastern apartments have been angled towards the south-east to improve privacy from neighbouring development.

The project forms part of the continuing transformation of North Sydney from a predominantly commercial CBD into a genuine mixed-use city centre.

Since the completion of Victoria Cross Metro Station, developers have increasingly shifted their attention towards residential projects capable of leveraging the area's unparalleled transport connectivity.

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FiveX recently lodged plans for a 61-storey, 490-apartment tower that would become one of the tallest residential buildings in North Sydney if approved.

Aqualand continues to expand its Lower North Shore presence following the completion of AURA on Walker Street and its recent St Leonards and Roseville proposals.

Developers are also progressing projects throughout Walker Street, Miller Street and the Victoria Cross precinct as demand for well-located owner-occupier apartments continues to strengthen.

Joel Robinson

First look: Zurich targets North Sydney office conversion with 148-unit proposal above Metro station

Busy developer Aqualand Prestige has formally taken the next step in its expansion across Sydney's Lower North Shore, lodging a State Significant Development Application (SSDA) for its long-held Archer Street site in Chatswood.

The application covers <a href="https://www.apartments.com.au/new-apartments/51-55-archer-street-chatswood-nsw-2067">51-55 Archer Street</a>, a 1,767 sqm amalgamated site on the eastern edge of the Chatswood CBD, where the developer is seeking approval for a 45-level mixed-use tower delivering 114 apartments, including a significant affordable housing component, alongside retail, commercial space and six basement levels of parking.

The SSDA marks the latest milestone for a project Aqualand has been quietly progressing over the past two years. The developer first secured the site for its Aqualand Prestige platform before undertaking an alternative design excellence process with PTW Architects, ultimately avoiding a formal design competition through the Housing Delivery Authority pathway.

The proposal has evolved considerably from Aqualand's original concept. The revised scheme has been designed around larger owner-occupier product, with an unusually high proportion of three and four-bedroom apartments, targeting the more affluent buyer profile, and downsizer, emerging across the North Shore.

<img alt="Archer St" data-entity-type="file" data-entity-uuid="0171204c-5811-41b5-9b09-2335d1b7c3d0" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-07-22%20at%208.52.48%E2%80%AFAM.png?VersionId=6YTuxfq.puZo7k2wbfgemcO5K3QfXYGQ" />

The 114-apartment mix comprises six studios, 27 one-bedroom apartments, 18 two-bedroom apartments, 50 three-bedroom residences and 13 four-bedroom homes. A quarter of the building will be dedicated to affordable housing, well above the mandated 15 per cent&nbsp;

PTW has structured the building vertically, with affordable housing across levels one to six, premium apartments through levels seven to 31, duplex skyhomes on klevels 32 to 43, a penthouse on level 44, and a rooftop plant level above. Six basement levels will provide resident parking and servicing.

The tower is proposed to reach approximately 154 metres, placing it among a growing collection of residential high-rises transforming Chatswood's skyline.

Rather than competing purely on height, PTW says the design has been driven by creating a slimmer tower capable of delivering significantly larger apartments.

"The primary objective of this project was to create a distinctive building that stands out from the recently approved or built structures in the Chatswood area," the design report states, noting the structural efficiency allows greater investment into apartment quality and resident amenity.

Residents would have access to more than 450 sqm of communal open space including landscaped gardens, swimming pool, rooftop entertaining areas, fitness spaces, community gardens, children's play areas and barbecue facilities.

A major focus of the design has been the public domain.

The ground plane has been opened up through landscaped terraces inspired by Willoughby's sandstone ridges, with native planting, public seating, artwork, retail activation and a series of gathering spaces intended to soften what has traditionally been a hard commercial streetscape.

The landscape strategy references Blue Gum forests once common throughout the area, while incorporating Indigenous storytelling, public art and lighting installations to strengthen the connection to Country.

Chatswood has been one of Sydney's busiest apartment markets over the past 12 months, with a steady pipeline of both new project launches and fresh development applications.

Hyecorp recently launched Celine, a 122-apartment development just along Archer Street, while Changfa and Huirong Group are progressing The Anderson, an 84-apartment project on Anderson Street.

Develotek recently secured approval for a 101-apartment tower on Pacific Highway, while Tian An LFD received the green light for Hammond Greens, its apartment development on the edge of the Chatswood Bowling Club.

Commercial property developer FiveX is also making its move into the residential market. Last month it lodged plans for a 61-storey tower with 490 apartments, which, if approved, would become one of the tallest residential buildings in Chatswood.

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/first-look-fivex-targets-chatswood-skyline-with-61-storey-tower-after-north-sydney-plans">First look: FiveX targets Chatswood skyline with 61-storey tower after North Sydney plans</a>

Aqualand is also expanding its development pipeline following the launch of its luxury residential brand, Aqualand Prestige. The developer has delivered a string of high-end apartment projects across Sydney's affluent suburbs over the past decade, most recently AURA by Aqualand on Walker Street in North Sydney.

[smartcode_project:default project_id=30959 project_image_fid=292863]

It has since quietly assembled its next wave of projects.

Earlier this year Aqualand launched Boronia in Roseville, a boutique 111-apartment development on Larkin Street. The project is one of the first significant apartment developments to launch in the suburb ahead of what is expected to become one of Sydney's most active new housing precincts under the NSW Government's Low and Mid-Rise Housing reforms, which allow greater density around train stations.

[smartcode_project:default project_id=152095 project_image_fid=373685]

The developer has also lodged plans for a two-tower, 413-apartment development on Herbert Street in nearby St Leonards, further strengthening its presence across the Lower North Shore.

Beyond that, Aqualand remains behind the final stage of Barangaroo, where plans will deliver a five-hectare mixed-use precinct comprising new homes, retail, hospitality and community facilities, alongside a new Metro entrance and more than two hectares of public open space, completing the Barangaroo precinct.

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/central-barangaroo-development-takes-big-step-with-concept-proposal-approval">Central Barangaroo development takes big step with concept proposal approval</a>

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/first-look-aqualand-joins-st-leonards-apartment-party">First look: Aqualand joins St Leonards apartment party</a> 
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First look: Aqualand pushes ahead with Chatswood apartment tower as SSDA lodged for Archer Street

Mass timber is becoming an increasingly popular construction material in apartment developments, but Adelaide developer <a href="https://www.apartments.com.au/developers/otello">Otello</a> is taking the approach a step further.

At its new <a href="https://www.apartments.com.au/new-apartments/flowe-bowden-18-gibson-street-bowden-sa-5007">Flowe Bowden</a> development, the exposed cross-laminated timber (CLT) structure isn't just about reducing the building's environmental footprint. It also forms the foundation of a broader wellness strategy, influencing everything from indoor air quality and natural materials to the way residents move through and experience the building.

The 115-apartment mixed-use development, designed by Melbourne-based architecture practice Fieldwork, will occupy a prominent island site opposite Bowden Village Reserve, combining one, two and three-bedroom apartments with retail and a dedicated wellness destination.

[smartcode_project:default project_id=152022 project_image_fid=375528]

Wellness isn't confined to a gym or shared resident facility at Flowe. Instead, Fieldwork embedded the concept into the building itself.

The development has been split into two residential wings connected by a naturally ventilated central breezeway, replacing traditional enclosed corridors with open-air walkways that improve natural light, encourage cross ventilation and create more opportunities for neighbourly interaction.

"Rather than treating wellness as something that only happens on the ground floor, our response integrates it throughout the building, which led us to ask what it really means to design a healthy building," Fieldwork Director Quino Holland said.

[smartcode_project:default project_id=152022 project_image_fid=375531]

The building's architecture also reflects Bowden's industrial heritage. The lower podium references the area's historic brick and sandstone buildings, while the upper levels transition to exposed CLT, allowing the timber structure to become a defining feature throughout the apartments and shared spaces.

The use of mass timber sits alongside a range of sustainability initiatives, including a fully electric, gas-free design, rooftop solar and a targeted 5 Star Green Star rating.

[smartcode_project:default project_id=152022 project_image_fid=375524]

Inside the residences, the focus remains on natural, durable materials. Blackbutt engineered timber flooring, exposed CLT ceilings, porcelain surfaces and warm timber joinery create a calming interior palette, while low-VOC finishes and responsibly sourced materials have been selected to improve indoor air quality.

Kitchens have been designed as the centrepiece of each apartment, featuring porcelain island benchtops, timber-look cabinetry and brushed steel tapware, with layouts that maximise natural light and ventilation.

[smartcode_project:default project_id=152022 project_image_fid=375530]

The more traditional interpretation of wellness comes in the form of Level Eleven, a two-storey wellness club spanning the ground floor, mezzanine and first floor.

The facility will include a gym, yoga and reformer Pilates studios, Finnish and infrared saunas, magnesium hot and cold plunge pools, and dedicated recovery spaces. Unlike many residential wellness facilities, Level Eleven will also operate commercially, allowing the broader Bowden community to access the venue while giving residents exclusive membership benefits.

The ground floor has also been designed around everyday living. A café overlooking Bowden Village Reserve will activate the street frontage, while a bike workshop with tool storage, co-working space and dog wash has been incorporated to support daily routines and encourage interaction between residents.

"Flowe brings together my two biggest passions, creating places and creating healthier lives," Otello founder Daniel Harris said.

"We wanted to create something Adelaide hasn't seen before, a genuinely healthy building, where the way you live is lifted without even trying."

Flowe is positioned directly opposite Bowden Village Reserve and within walking distance of Bowden Railway Station and the Adelaide Entertainment Centre, placing future residents just minutes from the Adelaide CBD while remaining connected to one of the city's most established urban renewal precincts.

[smartcode_project_cta:default project_id=152022]

Otello launches wellness-focused Flowe Bowden with Adelaide-first mass timber apartment design

Not all apartment amenities are immediately visible.

Swimming pools, gyms, rooftop terraces and residents' lounges have long featured on buyers' wishlists, but as the way Australians live has changed, so too have the features that make apartment living more convenient.

Increasingly, buyers are placing value on the practical aspects of day-to-day life. Fast internet, EV charging, secure bike storage, flexible workspaces and parcel management are becoming just as relevant as lifestyle amenities, reflecting changing habits and expectations.

Online shopping has been one of the biggest drivers of that shift.

Australians spent a record $82.6 billion shopping online in 2025, with almost one in every four retail dollars now spent digitally, making parcel deliveries a routine part of everyday life rather than an occasional convenience.

For apartment residents, however, receiving those deliveries isn't always straightforward.

Without someone home to accept a parcel, deliveries can be redirected to a nearby Post Office, left in building foyers or common areas, or require building management to temporarily store packages. As apartment living continues to grow across Australia's cities, parcel management has become an increasingly important consideration for both residents and developers.

Australia Post's Parcel Locker network is one response to that shift.

<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/KPZ9j5FRdsQ?si=Qztc1dNP3ZvEIUhb" title="YouTube video player" width="560"></iframe>

Rather than relying on home delivery, eligible parcels can be directed to a nominated Parcel Locker, where they're securely stored until collected. Once a parcel arrives, residents receive a notification through the AusPost app or SMS and can retrieve it using a one-time code or QR code at a time that suits them.

The network has expanded to more than 1,500 locations nationwide, with Parcel Lockers positioned at Post Offices, shopping centres, supermarkets, transport hubs and, increasingly, within or alongside residential developments.

That growing presence reflects a broader change in how apartment buildings are being planned.

Developers are increasingly considering the operational side of apartment living alongside traditional lifestyle amenities. Just as secure mailrooms, bicycle storage and EV charging have become more common inclusions, parcel management is emerging as another feature that supports everyday convenience.

It also helps preserve the arrival experience within a building. Carefully designed lobbies and communal spaces can quickly become cluttered when deliveries accumulate, while secure parcel solutions reduce the likelihood of missed deliveries or parcels being left unattended.

For buyers comparing apartments, these everyday details are becoming part of the decision-making process.

Location, floorplans and finishes remain fundamental, but the features that simplify daily life are carrying greater weight than they once did. As online shopping continues to shape consumer behaviour, secure parcel delivery is increasingly becoming another amenity worth looking for.

Parcel delivery is joining the apartment amenity checklist

Inca Property Group has lodged a State Significant Development Application (SSDA) for Dawn, a 53-apartment oceanfront development overlooking Mona Vale Beach.

The proposal, at 35-39 Darley Street East, would replace an existing 18-apartment strata building with a new owner-occupier-focused development comprising 53 two and three-bedroom apartments, including nine affordable built-to-rent residences delivered under the State's infill affordable housing scheme.

Positioned on a 2,679 sqm elevated site around 280 metres from Mona Vale Beach, the development has been designed to maximise panoramic ocean views while responding to the site's sloping topography.

<a href="https://www.apartments.com.au/developers/inca-property-group">Inca Property Group</a> Managing Director Josh Thompson said the State Significant pathway provided greater certainty for projects of this scale.

"This State Significant pathway gives the team real certainty to progress <a href="https://www.apartments.com.au/new-apartments/dawn-35-39-darley-street-east-mona-vale-nsw-2103">Dawn</a> through to completion," Thompson said.

"It allows us to acquire a one-off site, design it carefully and deliver the right offering for the suburb, assessed by the NSW Government's planning department."

The project is one of the first developments in the area to be assessed under the NSW Government's Low and Mid-Rise Housing policy, with the site sitting on the edge of the policy's designated inner area.

The proposal includes three basement levels providing 124 car spaces, alongside a range of resident amenities including a swimming pool, gym, sauna, wellness facilities and private plunge pools for selected ground-floor and penthouse apartments.

<img alt="Dawn" data-entity-type="file" data-entity-uuid="fc1a1daf-0ce4-4f12-9076-b1fa553c7a91" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-07-21%20at%208.42.11%E2%80%AFAM.png?VersionId=4GZ9h.gpNkTljbxyAET8Jfhv51XUamDm" />

Thompson said Dawn had been designed specifically for owner-occupiers and downsizers, a buyer profile that has driven demand across Inca's recent Upper North Shore developments.

"The majority of buyers in our recent North Shore projects have been downsizers, and we are learning exactly what this market is looking for. Beyond the location itself, we have included resort-style amenities to deliver a genuine lifestyle offering," Thompson said.

Located within walking distance of Mona Vale Beach, the town centre, Mona Vale Golf Club and the Royal Motor Yacht Club, Dawn represents Inca's first Northern Beaches project following the sell-out of Tara on Park in Waitara and Ellis Residences, currently under construction in St Ives.

Construction will be undertaken by Inca's in-house construction arm, GOP Constructions.

Dawn is the latest major apartment proposal for Mona Vale, with the suburb emerging as one of the key beneficiaries of the NSW Government's new Low and Mid-Rise Housing policy.

New developer One Living, led by industry veteran Joseph Scuderi, recently secured a site on Mona Vale Road, on the border of Mona Vale and Pymble, where it is planning around 140 apartments.

IPM is also planning its third project in Mona Vale, significantly increasing the scale of its previous developments with an 82-apartment proposal at <a href="https://www.apartments.com.au/new-apartments/159-167-darley-street-west-mona-vale-nsw-2103">159-167 Darley Street West</a>, opposite Bayview Golf Course and less than 800 metres from Mona Vale town centre.

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/one-living-enters-sydneys-new-apartment-market-with-northern-beaches-site-acquisition">One Living enters Sydney's new apartment market with Northern Beaches site acquisition</a>

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/first-look-ipm-plans-third-mona-vale-project">First look: IPM plans third Mona Vale project</a>

First look: Inca eyes Mona Vale with State Significant DA for Dawn apartments

Buildings

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GUEST OBSERVATION 
Worldwide, buildings are responsible for 19% of greenhouse gas emissions and our cities are responsible for up to 70%. 
So, designing buildings that produce fewer greenhouse gas emissions is vital to help limit global warming and the threats it poses. But we also need to ensure buildings are designed and constructed to cope with our changing climate conditions to bolster their longevity.
This means the construction sector has a significant role to play in mitigating and adapting to climate change. 
The urgency of rapidly reducing greenhouse gas emissions was highlighted in the bleak prognosis from the recent Intergovernmental Panel on Climate Change (IPCC) <a href="http://www.ipcc.ch/report/sr15/">special report</a>.
The IPCC report, released earlier this year, states that “limiting global warming to 1.5C would require rapid, far reaching and unprecedented changes in all aspects of society”.
This includes changes in the way cities currently function, including land use, energy, industry, buildings, and transport.
<a href="https://www.sciencedirect.com/science/article/pii/S0360132318302191">Our research</a> identifies several barriers inhibiting the construction industry’s response to adapting to climate change. 
The current regulatory framework is a key hurdle that many stakeholders within the Australian construction industry raised in our interviews. The <a href="https://www.abcb.gov.au/ncc-online/NCC">National Construction Code</a> doesn’t explicitly address climate change. 
Updating the regulations is an opportunity to set new benchmarks for the industry. The National Construction Code and its associated standards need to be reviewed and strengthened to ensure climate change adaptation and mitigation are addressed.
In the absence of any updated regulations, another barrier is the lack of client demand for buildings to be designed and constructed to address climate change. This sits alongside the perceived additional cost of building and including these mitigation and adaption measures.
Yet many people we interviewed say better regulation to address climate change would be beneficial. This would create a ‘level playing field’ for the industry and encourage innovation in the sector.
Significant climate change impacts will happen within the lifecycle of buildings that are being constructed now. So it’s important to design for these changes today. 
For example, considerations need to be made now to ensure gutters and drains are built to a size that can cope with bigger rainfall events, and to ensure that our homes stay cooler for longer during increasingly hot summers.
Unless we rapidly reduce our greenhouse gas emissions, we will all face significant and catastrophic impacts including increasing drought periods, a spike in the number of extreme heat days, increasing rainfall intensity, and a rising number of extreme events like floods, cyclones, and bushfires. 
These changes will influence the way our economy and society function.
To limit warming to 1.5 degrees (above pre-industrial levels) by 2100, and to limit climate change impacts, we need to reduce our global greenhouse gas emissions, fast – to 50% by 2030 and net zero emissions by 2050. 
As the IPCC’s special report says, achieving this goal will require a rapid transformation of our urban infrastructure systems including transport, the layout of our cities, and the design and construction of buildings. 
If we construct buildings that are unable to withstand future weather conditions, we’ll need more electricity to heat and cool our homes and work places.
But where we build will also be important; the further out, the more likely we’ll see more transportation-related greenhouse gas emissions, like travel modes for work and leisure. We will need to facilitate city growth on sites that aren’t vulnerable to future risks such as sea level rise. 
In addition, risk to operational capacity and building obsolescence will become key considerations for owners and occupiers alike, requiring forward planning and construction of buildings to withstand and cope with future challenges. 
Australia is going through a significant period of population growth. This translates to a large volume of construction, like dwellings and associated urban infrastructure, which is underway in many parts of the country.
It’s critical the construction code is updated to ensure that new buildings going up now address the changes we know are occurring and will continue to escalate in the future. 
Ignoring future climate change in construction is likely to end with many buildings and infrastructure projects becoming redundant, expensive to run or maintain, or even uninhabitable. This creates a plethora of problems for current and future generations.
Our research found all disciplines involved in creating a built environment have a role to play in addressing climate change – architects, urban designers, planners, engineers, builders and constructors are all integral to making a change.
Understanding how these sectors integrate and influence each other, and how they operate within policy and regulatory frameworks, is crucial to reduce greenhouse gas emissions and so limit the harsh consequences of irreversible climate change.
The research was conducted by Dr Anna Hurlimann, Professor Valerie Francis, Dr Georgia Warren-Myers and Dr Geoff Browne from the University of Melbourne’s Faculty of Architecture Building and Planning. It was funded by The Multiplex Research Program Award.
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j.ballantyne1990-6AQqhLzZaK

We need to modify how we build cities for a changing climate

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Buildings in Australia account for over 50% of electricity use and almost a quarter of our carbon emissions but the failures, frailties and fragmentation of the construction sector have created a major obstacle to long-term reductions. 
Reducing our carbon footprint plays second fiddle to the multibillion-dollar work of replacing flammable cladding, asbestos and other non-compliant materials and ensuring buildings are structurally sound and can be safely occupied.
Buildings – whether residential, commercial or institutional – do not score well under the nation’s main emissions reduction program, the A$3.5 billion <a href="https://www.environment.gov.au/climate-change/climate-solutions-package" target="_blank">Climate Solutions Package</a>. This is intended to help meet Australia’s 2030 Paris Agreement commitment to cut emissions by 26–28% from 2005 levels.
This climate fund has very successfully generated offsets under the vegetation and waste methods – these projects account for <a href="https://www.afr.com/companies/energy/climate-solutions-fund-aims-to-way-exceed-paris-targets-20191107-p5389w" target="_blank">97% of Australian carbon credit units</a> issued. But <a href="https://www.hvacrnews.com.au/news/buildings-to-the-rescue-for-erf/" target="_blank">built environment abatements have been very disappointing</a>.
Australians have <a href="http://climatecollege.unimelb.edu.au/facts4paris-australias-capita-emissions-remain-highest-among-its-key-trading-partners" target="_blank">very high emissions per person</a>. That’s partly due to how we use our buildings.
Our states and territories control building regulations. This year the Council of Australian Governments (COAG) <a href="http://coagenergycouncil.gov.au/publications/trajectory-low-energy-buildings" target="_blank">set ambitious energy-reduction trajectories</a> for buildings out to 2022 and beyond. This was to be achieved through amendments to national codes and implementing energy-efficiency programs.
<h2>Making the best use of our buildings</h2>
Last month, the Green Building Council and Property Council launched a policy toolkit, called <a href="https://new.gbca.org.au/news/gbca-news/making-every-building-count-industrys-practical-plan-lower-emissions-and-deliver-practical-savi/" target="_blank">Making Every Building Count</a>. The councils urged governments to adopt practical plans to reduce emissions in the building sector.
The toolkit contains no fewer than 75 recommendations for all tiers of government. These are the result of work done through industry and university research partnerships in places like the <a href="http://www.lowcarbonlivingcrc.com.au/" target="_blank">Low Carbon Living Collaborative Research Centre</a> – now disbanded after its seven-year funding ended.
Most energy-efficiency studies and programs focus solely on the operational aspect of buildings, such as the energy used to heat and cool them. However, various studies have proved that the energy and emissions required to manufacture building products, even <a href="https://theconversation.com/pink-batts-not-a-scandal-but-not-as-good-as-claimed-10213" target="_blank">energy-saving products such as insulation</a>, can be just as significant.
A more holistic approach is to look at the embodied energy already in our building stock, which then poses a <a href="https://www.adelaidereview.com.au/form/2019/06/25/book-extract-the-impact-of-overbuilding-on-people-and-the-planet/" target="_blank">serious question about our consumption</a>. So, besides aspirational codes for net zero-energy buildings, we should be asking: can we meet our needs with fewer new buildings?
In Melbourne, for example, an estimated <a href="https://www.sbs.com.au/news/the-feed/melbourne-s-60-000-vacant-houses-uncovered" target="_blank">60,000 homes are sitting unused</a>. Commercial property has very high vacancy rates – <a href="https://www.afr.com/property/commercial/retail-woes-blow-through-iconic-melbourne-strips-20190813-p52gi9" target="_blank">up to one in six premises are unoccupied</a> in parts of the city. This points to a less-than-effective market in valuing our embodied carbon emissions in property.
If we are to get serious about reducing emissions, we need to tackle inefficient space use.
<h2>Empowering people to cut emissions</h2>
In occupied commercial buildings, some evidence suggests most building managers are grappling with complexity and challenging tenant behaviours. They also don’t get the clear information they need to continually <a href="https://tfespecialreports.com.au/energy-efficiencys-big-secret-a-major-retrofit-of-performance-can-be-surprisingly-affordable/" target="_blank">improve their building’s performance beyond a selected benchmark</a>.
In residential property, home energy performance is very much in our own hands. So we need to consider the means, motivations and opportunities of households, which I did in my <a href="https://www.propertyobserver.com.au/https://minerva-access.unimelb.edu.au/handle/11343/220478" target="_blank">doctoral study</a>. A major barrier is that most of us don’t even know what we are getting when we buy or rent an ageing stock of more than 9 million homes.
Europe and the United States moved to <a href="https://www.gov.uk/buy-sell-your-home/energy-performance-certificates" target="_blank">mandatory residential energy disclosure</a> at point of sale and lease well over a decade ago. If you rent or buy a home in these countries you get an energy performance certificate. It identifies emissions intensity and gives advice on how to operate the home more efficiently and hence with lower emissions.
In Australia, we have just sat on a commitment made by <a href="https://www.coag.gov.au/sites/default/files/communique/2009-04-30.pdf" target="_blank">COAG back in 2009</a> to introduce a nationwide scheme.
Size matters, too. Residential space per person is <a href="https://www.commsec.com.au/content/dam/EN/ResearchNews/2018Reports/November/ECO_Insights_191118_CommSec-Home-Size.pdf" target="_blank">high by international standards</a>. Although McMansions are on the wane, our <a href="https://www.afr.com/property/residential/mcmansions-no-more-as-house-sizes-shrink-20191108-p538oi" target="_blank">apartments are getting a bit bigger</a>. The average size of freestanding houses built in 2018-19 shrank by 1.3% from 2017-18 to a <a href="https://www.commbank.com.au/guidance/newsroom/commsec-home-size-trends-report-201911" target="_blank">17-year low of 228.8 square metres</a>.
And we are putting more solar on our roofs as a carbon offset. As of September 30 2019, Australia had more than <a href="https://pv-map.apvi.org.au/analyses" target="_blank">2.2 million</a> <a href="https://theconversation.com/explainer-what-is-photovoltaic-solar-energy-12924" target="_blank">solar photovoltaic</a> (PV) installations. Their combined capacity was over 13.9 gigawatts.
However, the trend towards high-rise living is not helpful for emissions. <a href="https://www.solarchoice.net.au/blog/solar-for-strata-apartment-blocks/" target="_blank">Solar for strata apartments is tricky</a>.
I recently worked with colleagues in Australia and overseas in a <a href="https://link.springer.com/chapter/10.1007%2F978-3-030-04293-6_40" target="_blank">study</a> of the user experience of PV. We found residents face a range of issues that limit emission reductions. These issues include:
<ul>
<li>initial sizing and commissioning with component failures such as faulty inverters</li>
<li>lack of knowledge about solar and expected generation performance</li>
<li>regulatory barriers that limit the opportunity to upgrade system size.</li>
</ul>
Looking to improve regulations and codes and billion-dollar funds may be sensible ways to meet emission targets, but human empowerment is the secret weapon in improving energy performance and lowering emissions. Good low-carbon citizens will help create good low-carbon cities.
A set of clear guides on how to use a building is a good starting point. The <a href="http://builtbetter.org/lowcarbonguides/" target="_blank">low-carbon living knowledge hub</a> provides these.
What will make every building count in lowering emissions is the behaviour of occupants, the commitment of owners to make their buildings low-carbon and building managers’ ability to become more adept at reducing building-related emissions.<img src="https://counter.theconversation.com/content/126930/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;">
<a href="https://theconversation.com/profiles/timothy-oleary-685735" target="_blank">Timothy O'Leary</a>, Lecturer in Construction and Property, <a href="http://theconversation.com/institutions/university-of-melbourne-722" target="_blank">University of Melbourne</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/making-every-building-count-in-meeting-australias-emission-targets-126930" target="_blank">original article</a>.
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Making every building count in meeting Australia’s emission targets

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We've recently seen adventure retailer Kathmandu open the first Green Star accredited retail store in Australia, which is to be shortly followed by Collins Street Wharf's new development on the waterfront.
But what exactly is the Green Star initiative?
The Green Star rating system comes from the Green Building Council of Australia.
The Green Star rating tools rewards sustainability outcomes and encourage moving beyond standard practice.
Ratings can be achieved at the planning phase for communities, during the design, construction or fitout phase of buildings, or during the ongoing operational phase.
The ratings are broken down in to six star categories.
<a href="/images/2016/03/31/The%20green%20star%20rating%20scale.jpg" target="_blank">Click to enlarge </a>
 <img src="/images/2016/03/31/The%20green%20star%20rating%20scale.jpg" alt="">
The system assesses the buildings, fitouts and communities against a range of environmental impact categories.
It also aims to encourage leadership in environmentally sustainable design and construction, showcase innovation in sustainable building practices and consider occupant health, productivity and operational cost savings.
In June, diversified property group Frasers Property Group (rebranded last year from Australand), who are now controlled by Singapore-listed Frasers Centrepoint, secured the first ever sustainability rating for a portfolio of properties.
Not to be confused with Kathmandu's claim for the first ever retail store, the portfolio applies to a group of 54 commercial and industrial properties.
Australand now has 1.3 million square metres of Green Star-certified space, more than double any other company in Australia.
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jrobinson-rf4aSBido9

What is a Green Star rating?

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The increasing use of Big Data could drastically change facilities management in commercial real estate and the operations of the future workplace, according to JLL.
This will include the emergence of intelligent buildings with the ability to better manage and prevent issues, increase sustainability for owners, and technologies that allow staff to engage with the buildings and influence their surroundings in new ways.
Big Data is the term given to extensive sets of data that are of a size, diversity and complexity that require new techniques and advanced analytics to manage and extract valuable insights from them.
“Ninety percent of all the data we have in the world today was created only in the last two years. Today we create about six exabytes of data every day, whereas all the data produced on the planet up until 2003 only totalled about five exabytes,” said JLL’s director of corporate solutions Rajiv Nagrath.
He said all types of organisations are increasingly relying on analytical tools to generate data-driven insights that enable better decisions and improve operations.
In buildings, a major contributor of Big Data are the Internet of Things (IOT) devices.
IOT is the term given to the vast network of automated pieces of hardware that are individually connected to the internet, enabling them to collect and exchange data all the time. 
"By 2020 there will be an estimated 26 billion internet-connected devices in addition to about seven billion laptops, tablets and smartphones," he said.
“Hundreds of thousands of these IOT devices will be located in commercial buildings, constantly creating huge volumes of data points to make sense of managing the buildings efficiently and effectively.
Various sensors, controllers and other IOT enabled devices will revolutionise how buildings operate and make the truly intelligent building a reality.
“Most modern buildings today are already provisioned with such advanced devices and technologies, having about 5,000 to 10,000 points connected to the Building Management System - already a high number of devices that act together, and a large volume of data that needs to be collected, analysed and acted upon.
"If we have the right analytic tools, Big Data offers us the chance to find the patterns and identify the correlations and causes of malfunction,” he said.
Big Data and IOT will also impact the way facilities management (FM) and the modern workplace could operate.
“Workplace models are shifting towards increasing choice and flexibility, which not only means changes for the staff, but also for the building owners and managers. One key shift the IOT will have on FM will be the integral role Wi-Fi will play in controlling the office environment, and the intimate level of control each individual could have over their immediate space and surroundings.
“Where once we had a simple passive infrared sensor (PIR) detector switching off the lights in a meeting room, we will have situations where all of the lights will have a movement detector and each light fitting will be addressable.
"Individuals will be able to set their own lighting and space temperature preferences all via an app on their smart phone.
"This will add another layer of complexity for facilities management previously not witnessed in the commercial property sector.
Nagrath, who recently presented on the relationship between Big Data and Facilities Management at a conference in Perth, said another effect of Big Data and IOT on FM would be the shift towards a central command centre model for managing a portfolio of buildings, instead of standalone building management systems.
While most modern buildings already incorporate a standalone building management system that controls some of the systems such as heating, ventilation and air conditioning and emergency generators, it was no longer the best solution, he said.
“What we are seeing more often is that due to changes in resourcing and skill levels, it is no longer efficient for someone to be constantly monitoring the performance of the building at an individual site level.
"It is much more efficient to channel all of the information from those systems back to a central 24/7 command centre to monitor, analyse performance and detect failures and anomalies.
"Command centres increase efficiencies because they can monitor many buildings, staff can conduct in-depth analysis, and it can leverage powerful software to run algorithms over a huge amount of data.
"Our experience is that in most buildings you can improve sustainability and save 10-15% in energy costs once you connect it to a command centre too.”
JLL has been implementing such models for a couple of years now.
Nagrath said that while the concept of a command centre was not new, it had taken a while to gain traction in the FM sector.
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