The residential transformation of St Kilda Road is set to continue into with more new apartment plans for the sought-after boulevard.

Wing Tai Asia has lodged plans for a major residential tower at 464-466 St Kilda Road, replacing the former VACC House with an 18-storey mixed-use development designed around a retained heritage podium and a sculpted contemporary tower.

The proposal, prepared under Victoria’s Significant Residential Development with Affordable Housing pathway, would deliver 325 apartments and ground-floor retail across the prominent 4,653 sqm boulevard site in Melbourne’s St Kilda Road North Precinct.

The project centres on the adaptive reuse of the site’s heritage-listed VACC Building, an eight-storey office designed by Bernard Evans that has occupied the address for decades. Planning documents state the development would involve “carefully dismantling and conserving off-site the original metal fabric of the podium visible from St Kilda Road,” before reinstating it as the defining frontage of the new scheme.

Above the restored podium, Wing Tai is proposing a curvilinear residential tower. The scheme includes 172 one-bedroom apartments, 63 two-bedroom apartments, 66 three-bedroom apartments, and 24 four-bedroom apartments, alongside two ground-floor food and beverage tenancies fronting St Kilda Road.

The tower has been designed with substantial articulation and variable setbacks to minimise perceived bulk and maintain view corridors along the boulevard. Urbis, which prepared the planning report, said the design “has been significantly articulated through a curvilinear design” with “an interplay with materials, façade expression and depth” to create visual separation and visual interest.

The proposal also includes 254 basement car spaces, landscaped pedestrian links connecting St Kilda Road and Queens Lane, and a biophilic landscape strategy featuring canopy trees, raised planters, cascading greenery and a glass oculus pool overlooking the eastern frontage.

Planning documents confirm the $270.1 million development will contribute 3 per cent of project costs to the Social Housing Growth Fund as part of the application process.

Wing Tai acquired the St Kilda Road property in 2018 alongside Abacus Property Group for $95.38 million, before later consolidating ownership of the site. The property previously served as the Victorian Automobile Chamber of Commerce headquarters for around 60 years.

The transformation of the St Kilda Rd boulevard is already beginning to materialise, with a number of high-profile projects recently completed, launched, or approaching launch as developers continue to back the long-term appeal of the precinct.

Among the most notable recent completions is Louise by Samuel Property Group, just off the strip on Queens Lane, the same pocket Hirsch &amp; Faigen recently launched The Queensbury. Mirvac is too on the same street with The Albertine, which is approaching completion.

Dexus recently secured approval for its slice of St Kilda Road, while Gurner also has approved plans for the precinct.

Joel Robinson

Wing Tai unveils 325-apartment St Kilda Road tower on former VACC House site

Malaysian developer <a href="https://www.apartments.com.au/developers/s-p-setia">SP Setia</a> is the latest to jump into St Leonards booming Transport Oriented Development precinct.

The developer, which has previously delivered Sapphire by the Gardens apartment development in Melbourne, identified the Atchison Street site in 2023. It filed a Scoping Report around 12 months ago, and now has revealed the designs for the new&nbsp;40-storey mixed-use tower.

The State Significant Development Application covers <a href="https://next-portal.urban.com.au/projects/14650/summary">20-22 Atchison Street</a>, a 1,374 sqm site positioned between St Leonards Station and the new Crows Nest Metro station.

Designed by <a href="https://www.apartments.com.au/architects/cox-architecture">COX Architecture</a>, the project would deliver 181 apartments, above a four-storey commercial podium, five basement levels, and new public domain works along Mitchell Street. The apartment mix comprises 35 one-bedroom apartments, 39 one-bedroom-plus-study apartments, 85 two-bedroom apartments, and 22 three-bedroom residences.

The proposal has been lodged as a shop-top housing development under the NSW Government’s TOD planning pathway, which allows increased density around key transport infrastructure. The site sits within the recently rezoned Crows Nest Accelerated TOD Precinct.

<img alt="First look: SP Setia targets St Leonards skyline with 40-storey TOD tower" data-entity-type="file" data-entity-uuid="b799673d-48e2-46b0-801a-0e33a9330100" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/atchinson%20site.png?VersionId=dPh0UfwfaHpbFL1R7H1cbZNbIW0CHbCC" />

SP Setia acquired the Atchison Street site as part of its continued expansion into the Australian apartment market. In comments made to City &amp; Country (The Edge Malaysia) in 2023, SP Setia President and CEO Datuk Choong Kai Wai described the acquisition as “a strategic move” aligned with the group’s post-pandemic market recovery strategy.

“Our target for this exceptional development is local and overseas buyers, including first-home buyers, downsizers and investors,” Choong said.

The tower has been designed as a slender vertical form rising from a mixed-use podium, with COX Architecture positioning the development as a response to the evolving St Leonards and Crows Nest skyline.

“The purpose of the project is to facilitate the delivery of high-quality housing at a strategically located site and deliver a built tower outcome that is consistent with the desired future character of St Leonards and aligns with the TOD controls,” the design report stated.

<img alt="First look: SP Setia targets St Leonards skyline with 40-storey TOD tower" data-entity-type="file" data-entity-uuid="b1a85eee-76f7-436c-a6da-73ba827b9b13" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/atchinson%20entry.png?VersionId=dA9jHGPMcm.dDbwk4QfxqWiY5bfh3UVt" />

The podium would incorporate retail uses fronting Atchison Street, commercial tenancies, landscaped communal areas, and pedestrian improvements along Mitchell Street. Vehicle access and loading would be consolidated via Atchison Lane.

Residents would have access to more than 665 sqm of communal indoor and outdoor spaces, while the development proposes 96 parking spaces across five basement levels.

The proposal also includes a commitment for 10 per cent of residential floor space to be allocated toward affordable housing through a monetary contribution.

COX said the tower form responds directly to the emerging high-density character of the precinct while seeking to maximise solar access, cross ventilation, and outlook from apartments.

<img alt="First look: SP Setia targets St Leonards skyline with 40-storey TOD tower" data-entity-type="file" data-entity-uuid="2163f85c-f63b-4be3-aafa-f8763976cec5" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Article%20Feature%20Image%20%28Grid%29_5.png?VersionId=WiAmtIKJ6.ZQ41EtYEQ1fol7AeorKBlL" />

“The building is orientated towards north,” the Apartment Design Guide compliance report noted, adding that the tower’s slim form was driven by the constrained inner-urban site dimensions.

The design also incorporates landscaped setbacks and communal open space at podium level, intended to soften the interface with surrounding streets and improve pedestrian amenity.

The project adds to a growing wave of redevelopment proposals reshaping St Leonards and Crows Nest following the opening of the Sydney Metro City line and the NSW Government’s push for higher-density housing around major transport nodes.

Last week Stockland filed plans just down the road. They want to build a <a href="https://www.apartments.com.au/new-apartments/601-pacific-highway-st-leonards-nsw-2065">52-storey tower on Pacific Highway</a>.

Read more:&nbsp;<a href="https://www.apartments.com.au/news/nsw/first-look-stockland-plans-52-storey-538-apartment-st-leonards-tower">First look: Stockland plans 52-storey, 538-apartment St Leonards tower&nbsp;</a>

First look: SP Setia targets St Leonards skyline with 40-storey TOD tower

<a href="https://www.apartments.com.au/developers/urban-property-group">Urban Property Group</a> has revealed plans for a new mixed-use tower at 10 Dangar Street, Wickham, advancing a proposal that would reshape the southern gateway to Newcastle’s city centre with one of the city’s tallest residential buildings.

The State Significant Development proposal, now on exhibition, seeks approval for a <a href="https://www.apartments.com.au/new-apartments/bowline-10-dangar-street-wickham-nsw-2293">43-storey tower</a> immediately adjacent to the Newcastle Interchange. The project would deliver around 200 apartments, including 42 affordable housing dwellings, alongside 99 co-living units, a 171-room hotel, retail space, and new public domain integrated through the site.

The scheme marks a significant escalation of plans previously approved for the site. Urban Property Group took over the prominent 2,904 sqm parcel, where excavation and demolition had already commenced under an earlier consent for a 14-storey mixed-use development.

<img alt="First look: Urban Property Group unveils Newcastle’s next supertower at Wickham interchange" data-entity-type="file" data-entity-uuid="58a96dd9-407f-4d20-86b4-94e4bfeef74b" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/wickham%20podium.png?VersionId=LGlf08pdFGAZDzvx_CXC4XakHNZRuEE0" />

Designed by <a href="https://www.apartments.com.au/architects/sjb-architects">SJB</a>, the tower has been conceived as a landmark transit-oriented development anchored to the Newcastle Interchange precinct. The proposal includes 245 build-to-sell apartments across a mix of one, two, and three-bedroom residences, as well as two penthouses. Fifteen apartments and one operational unit are earmarked for NDIS housing. The co-living component would add a further 99 units, while the podium would accommodate retail uses and hotel facilities.

SJB said the site presents “a valuable opportunity to anchor the precinct by setting the standard for design, active ground planes and character at the key southern gateway.”

The architecture responds directly to the site’s position beside major transport infrastructure and within one of Newcastle’s fastest-evolving urban renewal precincts. The tower form sits above a sculpted podium designed to frame new public spaces, including a through-site pedestrian link connecting Station Street to Hannell Street, landscaped plazas, and activated retail edges.

<img alt="First look: Urban Property Group unveils Newcastle’s next supertower at Wickham interchange" data-entity-type="file" data-entity-uuid="a7bd6ff0-f7db-4ce8-a6dc-ea56e72c6149" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/wickham%20lanne.png?VersionId=xzf39VADyhj7zBQY2I9fx9vI62u2tuSb" />

The design report describes the project as part of the broader transition of Wickham into “a vibrant, high-quality mixed-use urban precinct” that leverages proximity to the station, open space, and regional connectivity.

A detailed public art strategy has also been prepared for the development. The strategy positions the project as “a transit-oriented development of state significance at the gateway to Newcastle’s city centre” and outlines a series of integrated artworks responding to Newcastle’s industrial and transport heritage.

Creative Road’s curatorial framework for the project, titled Unveil, draws on “stratified surfaces, carved volumes, and light-filled apertures” while referencing Newcastle’s transformation from an industrial city into a contemporary education and technology hub.

<img alt="First look: Urban Property Group unveils Newcastle’s next supertower at Wickham interchange" data-entity-type="file" data-entity-uuid="77a882bb-14b1-4d28-99ff-9438e39508c0" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/wickham%20site.png?VersionId=cevgo_vN0eKPK78P8YcEu3mKPLkpFqE7" />

The proposal is being advanced through the NSW Housing Delivery Authority pathway after being declared State Significant Development in June 2025. The accompanying scoping report states the development aims to “maximise the site’s proximity to the Newcastle Interchange by delivering transit-oriented development” while increasing housing supply and affordable housing provision within the Newcastle LGA.

Urban Property Group’s plans align with the long-term strategic vision established under the Wickham Master Plan, which identified the interchange precinct as suitable for substantial uplift in height and density. The current proposal would significantly intensify that vision, positioning the tower among the tallest developments proposed for Newcastle.

The site sits immediately north of the Newcastle Interchange, bounded by Dangar Street, Hannell Street, and Charles Street. It is surrounded by a rapidly growing cluster of residential towers and mixed-use projects that have emerged following the completion of the light rail and transport interchange.

First look: Urban Property Group unveils Newcastle’s latest tower at Wickham interchange

Bottega House has completed settlement of a landmark riverfront site in Macquarie Street, St Lucia, representing its first major Brisbane development.&nbsp;

Positioned on the banks of the Brisbane River, the <a href="https://www.apartments.com.au/new-apartments/180-macquarie-street-st-lucia-qld-4067">premium site at 180 Macquarie Street</a> features uninterrupted river frontage in one of Brisbane’s most tightly held residential precincts.&nbsp;

The proposed development, currently under assessment with Brisbane City Council, has been designed by <a href="https://www.apartments.com.au/architects/plus-studio">Plus Studio</a> with interiors by <a href="https://www.apartments.com.au/interior-designers/mim-design">Mim Design</a> and will deliver a boutique collection of premium residences positioned specifically for owner occupiers and downsizers.&nbsp;

The residences are set to redefine luxury apartment living in the area, with a focus on architectural quality, refined finishes, landscape integration and elevated amenities including curated wellness facilities, resort-style pools and recreation spaces rarely seen in the local market.&nbsp;

Exclusive sales for the project will be led by Keenan &amp; Byrne, ahead of an anticipated launch later this year.&nbsp;

Bottega House Managing Director Nick Malloch said the project reflects the group’s ambition to deliver a highly curated residential offering within one of Brisbane’s most tightly held precincts.&nbsp;

“This is an incredibly rare riverfront opportunity and one we have approached with a long-term perspective,” Malloch said.&nbsp;

“Our vision from the outset was to create a boutique collection of residences that feel more like private homes than traditional apartments, with generous proportions, refined finishes and exceptional amenity throughout."

Malloch says there is a&nbsp;lack of premium owner-occupier stock of this quality in the market, particularly for downsizers wanting space, privacy and a true lifestyle offering without compromise.&nbsp;

"Demand is expected to be strong given the scarcity of premium riverfront opportunities of this nature within Brisbane’s inner-west."&nbsp;

Bottega House secures landmark riverfront site in St Lucia 

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The arrival of the first piling rig officially marks the commencement of construction at SIERA’s new beachside apartment development, Exhale, in Northcliffe.

<a href="https://www.apartments.com.au/new-apartments/exhale-surfers-paradise-8-enderley-avenue-surfers-paradise-qld-4217">Exhale</a>, a glass-encased tower featuring 54 large-scale apartments at 8 Enderley Avenue, is SIERA’s third Gold Coast development. It follows the recently completed PIPIS Bilinga beachfront project, which achieved suburb-record prices, and the soon-to-be-completed Chevron Island development, Tapestry.

[smartcode_project:default project_id=112661 project_image_fid=359603]

<a href="https://www.apartments.com.au/developers/siera">SIERA</a> Founder and Managing Director Brent Thompson said the arrival of the piling rig represented a significant milestone for the development, which is scheduled for completion in late 2028.

Over the next month, around 260 piles are expected to be installed as work progresses on the basement structure. The building is anticipated to rise above ground level early next year, before unveiling its sculptural glass curtain wall, developed in collaboration with specialist façade engineers.

“The façade was designed to maximise panoramic coastal views while creating a distinctive architectural identity,” Thompson said.

[smartcode_project:default project_id=112661 project_image_fid=355935]

Designed by BDA Architecture, Exhale will comprise just 54 two- and three-bedroom residences across 26 levels, a level of low-density living rarely delivered in this beachside pocket between Surfers Paradise and Broadbeach.

The project has been conceived as a resident-only building, with no short-stay accommodation permitted. SIERA says the model is intended to appeal to long-term owner-occupiers rather than transient holiday demand.

[smartcode_project:default project_id=112661 project_image_fid=361052]

Residences have been designed with large-format layouts and expansive glazing, with most apartments featuring more than 30 metres of glass frontage to maximise natural light and ocean views.

The amenity offering spans two levels and centres on wellness and lifestyle, including a heated magnesium pool, sauna, yoga and Pilates studio, gymnasium, private dining facilities, cinema lounge, and dedicated surfcraft storage.

[smartcode_project:default project_id=112661 project_image_fid=359607]

More than half of the apartments have already sold. SIERA has also opened a sales gallery for Exhale at its Chevron Island commercial premises, near its Tapestry tower and the site of its second Chevron Island apartment development, which is slated to launch in early 2027.
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[smartcode_project_cta:default project_id=112661]

SIERA kicks off construction at Northcliffe tower Exhale

David Lock Associates

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Food for thought today as a follow-up piece to yesterday's article which highlighted <a href="/news/an-icon-complete">Icon St Kilda's completion</a>. The apartment tower which now sits atop St Kilda Junction is one of many new apartment projects (both completed and under construction) surrounding the Junction.

As the area grows in popularity, the Junction itself looks to be slipping into obscurity with the dated urban realm anything but inviting. With this in mind, Town Planning and Urban Design firm David Lock Associates instigated a design competition with the aim of reinvigorating St Kilda Junction.

Now complete, the competition dubbed <a href="http://www.dlaaust.com/re-imagine/">Re:imagine the Junction</a> sought innovative design solutions from final year, masters and post graduate planning, urban design and architecture students from Australian Universities.

<blockquote>
This competition is about new inner-urban futures – the Future City set within an historic urban fabric. A future fabric that not only meets 21st Century needs but also heals previous injuries inflicted on Melbourne's inner-urban inheritance.

Around 1970, the Melbourne Metropolitan Board of Works eviscerated central St Kilda. The heart of St Kilda Junction was ripped out. St Kilda’s High Street shopping spine, stretching south, was hacked away and discarded.

The wound has never healed. St Kilda Junction and old High Street are now hardly more than soulless, community-dividing traffic sewers.

The Re:imagine the Junction competition will aim to re-monumentalise St Kilda Junction, and restore St Kilda Rd South (the former High St) and the Princes Highway as the living backbone of the suburb. Not with a return to the past, but with the imposition of an ambitious future.
<cite>David Lock Associates</cite>
</blockquote>

Readers can <a href="http://www.dlaaust.com/re-imagine/student-entries/category/stage-two/">view the student entries</a> for the recently completed competition.

<figure><a class="colorbox colorbox-insert-image" href="https://res.cloudinary.com/dz9xllyip/image/fetch/q_auto:good/https://s3-ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/pictures/article-images/image25_3.jpg" rel="gallery-all" title="A selection of student works taken from the David Lock Associates website"><img alt="" class="image-article-full-width-580px" height="330" src="/sites/urban.melbourne/files/styles/article_full_width_580px/public/pictures/article-images/image25_3.jpg?itok=cLW9eXKA" title="A selection of student works taken from the David Lock Associates website" width="580"></a>

<figcaption>A selection of student works taken from the David Lock Associates website</figcaption></figure>Although the above designs do not conform to the real world parameters of St Kilda Junction, they do nonetheless provoke thought.

St Kilda Junction is by and large a decrepit area whose freeway-style road grade separation also doubles as a nexus between Melbourne's south east and the inner city. As more and more apartments reach completion within the area, St Kilda Junction and surrounds should in theory see a marked increase in foot traffic.

The Junction in many ways looks to be a smaller version of City Road; increased residential development while the ground plane has been neglected altogether. Both now shape as a prime candidates for new urban design ideas and extensive civil works.

<figure><a class="colorbox colorbox-insert-image" href="https://res.cloudinary.com/dz9xllyip/image/fetch/q_auto:good/https://s3-ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/pictures/article-images/image20_1.jpg" rel="gallery-all" title="Can the Junction's street level pizazz match that of its skyline. Image courtesy Melbourneguy"><img alt="" class="image-article-full-width-580px" height="404" src="/sites/urban.melbourne/files/styles/article_full_width_580px/public/pictures/article-images/image20_1.jpg?itok=FGv_7U6F" title="Can the Junction's street level pizazz match that of its skyline. Image courtesy Melbourneguy" width="580"></a>

<figcaption>Can the Junction's street level pizazz match that of its skyline? Image courtesy Melbourneguy</figcaption></figure>
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silvermb

Bringing St Kilda Junction back to life?

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By 2051 the number of households in greater Melbourne is projected to almost double from 1.59 million in 2011 to 3.11 million. We face a huge challenge to ensure there is sufficient housing to meet the needs of future households. Apartments are an important part of the housing mix.

Since 2009, Melbourne has experienced successive years of record apartment approvals and development. For the first time there are more apartments being built than houses in Melbourne’s growth areas.

With the explosion of apartments in recent years there is concern across the community with the quality of apartments being built in Victoria.

To ensure apartments are being designed to meet needs now and into the future, the Victorian Government released 'Better Apartments - A discussion paper' in May 2015 and asked for feedback on the issues raised in the discussion paper from a wide range of community, industry and other stakeholders.

Below is David Lock Associates response to the issues raised in the discussion paper:

We understand that there is concern about the quality of apartments being developed in Melbourne. However, we also understand that there is a link between amenity and cost — better amenity often (though not always) costs more to construct. This has an adverse effect on affordability and, therefore, the ability for first home-buyers to get into the market. (We note that in Sydney, where the Residential Flat Design Code stipulates minimum standards, units are currently 80 per cent more expensive than those in Melbourne.)

We believe that many people make a deliberate choice to accept a lower standard of one or more aspects of amenity when buying or renting an apartment, either because this is the only way they can afford to enter the market, or as a trade-off for a higher standard of another aspect of amenity, such as location. An obvious example of this is people who choose to live in an apartment in a converted warehouse or office building, without a balcony or car parking space, because it enables them to live in the CBD where they don’t have the financial and time costs of travel to work and entertainment. Another example is studio apartments without a separate bedroom, which provide an affordable first home option. A further example is people who choose a south-facing apartment for its view, despite the lack of solar access.

Among other things, the ability for people to choose from a wide range of housing options enables them to select housing that matches their lifestyle and financial position at different stages of their life. While a studio apartment close to the CBD may not meet someone’s needs for their whole life, it may suit their lifestyle for a period of time and may be the only way they can afford to purchase their first home.

Stipulating minimum standards for internal amenity (beyond those already contained within the National Construction Code) is likely to remove housing options at the affordable end of the market, reducing choice and lessening the proportion of people who can afford to own their own home. We consider that the NCC already precludes unacceptably sub-standard apartments, and do not believe that it is necessary for government to further restrict people’s housing choice by increasing minimum amenity standards.

However, we do believe that there needs to be a consistent standard for apartment building separation, to ensure development does not unreasonably prejudice the potential of neighbouring properties. Our view is that this standard needs to relate to the height of a building (i.e. the taller the building, the greater the separation), and have the discretion to distinguish between the primary orientation of an apartment and the aspect from ‘secondary’ habitable rooms such as bedrooms and non-habitable rooms such as bathrooms. It should also have the discretion to consider the relative widths of neighbouring properties (and, therefore, their relative capacity to contribute to a shared separation), and the likelihood of a neighbouring property being redeveloped (e.g. to recognise the constraints that heritage or strata titling place on development potential).

There is also a legitimate concern that people do not fully understand the amenity standards of the apartments they are considering buying or renting, particularly with off-the-plan apartment sales. In response to this, we suggest that a rating system be developed for apartment amenity and that each apartment for sale or rent be required to have its rating explained to potential purchasers or renters. A standard set of apartment amenity criteria could be developed, so that apartments can be easily compared. For example, the size and access to natural daylight and ventilation of each room (including ceiling height), living room solar access, balcony size and solar access, energy efficiency, noise, outlook, storage, adaptability, universal accessibility, corridor daylight and ventilation, car parking and provision of communal facilities could all be rated “good”, “standard” or “poor”, based on a standard set of objective 2 criteria. At the same time, the location of the apartment in terms of its accessibility to amenities such as public transport and parks could be rated.

A rating system would ensure that potential purchasers and renters can make informed choices about apartments, without restricting the options available to them. It would also ensure that the price of apartments is closely related to their amenity, so that relatively poor apartments provide an affordable housing option.

Mark Sheppard is a Principal at <a href="http://www.dlaaust.com/">David Lock Associates</a>. This article recently appeared on the David Lock Associates website.
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Mark Sheppard

Better apartments for the future

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Planners and urban designers have mostly sought to increase densities in Australia’s cities. Society’s low-density love affair has brought us unending sprawl, with all its social, environmental and economic ills. Attempts to rein in our metropolises’ spreading girth and create more sustainable, liveable and economically-efficient cities have focused on strategic increases in density to support public transport use and reach viability thresholds for local amenities within walking distance.

Now, courtesy of Leanne Hodyl’s elegantly presented Churchill Fellowship report, we are being asked to consider whether densities have got too high in central Melbourne. After the raging success of the Postcode 3000 program in attracting people to live in the city centre, are we witnessing the creation of an unliveable CBD?

The problems identified in the report include poor internal amenity, poor public realm amenity, unfair constraints on the future development of neighbouring properties (‘inequitable development’) and a lack of commensurate open space and community infrastructure provision. There is no doubt that there are examples of all of these undesirable outcomes (and, of course, many examples of tall buildings that don’t cause them). The question is whether this warrants density controls.

In one of Melbourne’s many efforts to distinguish itself from Sydney, we don’t (in the main) seek to control development density, instead focusing on its form. This is because it is the siting, scale and shape of a building that most influences its amenity and that of the surroundings, rather than the floor area or the number of dwellings or people it accommodates. Insufficient internal and external daylight and sunlight, disrespect of heritage and character, visual bulk and wind are all a result of form, not density.

It is true that designing a building to avoid adverse impacts (typically through boundary setbacks) reduces its density compared with a vertical extrusion of the site to the same height. But the reverse is not necessarily true: reducing density does not automatically reduce the adverse impacts of a building. And the density of an acceptable building on one site may be quite different to the density of an acceptable building on the next, due to differing interfaces. In other words, density controls are a very blunt tool for managing the ill effects of tall buildings.

Density does have impacts independent of form — notably, demands on infrastructure and congestion of transport networks. However, this is largely a question of funding. At face value, there is merit in the notion of a density-based infrastructure contribution scheme. You want more floorspace? You provide or pay for infrastructure upgrades.

To a point, street congestion is merely an influence on character. Busy streets offer a different experience to quiet streets. Not better or worse, just different.

Ultimately, however, we need to ensure people can get around safely and efficiently. We have accepted the principle that roads will be congested at times in big cities, and the only way to provide for growth is to get more people onto alternative modes of transport (including cycling and walking). We are now beginning to see trams and cycle lanes reach critical levels of congestion too. But, like community and utility services infrastructure, this is just a funding problem. Density-based contributions can fund upgrades in public transport and cycle infrastructure.

Of course, there is an absolute limit on the space available within the street network for moving people about. And increased provision for public transport and cyclists may require more space. But we are far from wringing the last unit of movement capacity out of our wide streets. The trend of reallocating space from private cars to tram stops and cycle lanes has a long way to go before we reach their absolute limit.

So, density controls aren’t the answer. How, then, should we control tall buildings to avoid the kinds of problems beginning to afflict the CBD?

Setting the question of infrastructure aside, a leading cause of the other problems is insufficient building separation. Until now, most taller development has occurred on larger lots, separated from other taller buildings by narrower lots or through the ability to provide generous setbacks. However, changes in technology and market preference are now allowing tall buildings on small sites. The potential for such buildings to be constructed ‘cheek by jowl’ with other taller buildings and the inability of small sites to accommodate generous setbacks has been the cause of many of the issues raised in Ms Hodyl’s report.

Since most of the larger sites in the CBD have been developed, and further growth relies on the development of smaller properties, how can the ill-effects of taller buildings be avoided?

The answer is that a more sophisticated but enforceable building separation control is needed. The 24m separation sought by Clause 22.01 quite simply rules out the development of any property less than about 40m wide. This has led to it being ignored (even in situations where the neighbouring property could, in future, be developed, in which case the ‘first come first served’ principle has been adopted) because to do otherwise would stymie growth in the CBD.

A new building separation control should take into account that:

<ul>
<li>Towers on narrow sites may be able to obtain their amenity primarily or wholly from the front and rear, avoiding the need for side setbacks for internal amenity or equitable development reasons.</li>
	<li>Towers on narrow sites have less impact on the public realm due to their narrower profile. Indeed, many of the larger towers in the CBD are the equivalent of three or more narrow towers in footprint.</li>
	<li>The external impacts of a building relate at least partly to its height, so the scale of setback requirements should be linked to height.</li>
	<li>Where neighbouring properties are unlikely to be redeveloped for towers (due, for example, to significant heritage values or strata titling), they can provide the necessary tower separation avoiding the need for a setback from that boundary.</li>
</ul>
We need to address the problems being caused by some taller buildings in the CBD. But, attractive as it might sound for reasons of administrative simplicity, density controls are not the answer. Instead, it lies in more nuanced and, therefore, implementable side and rear setback controls.

Mark Sheppard is a Principal at <a href="http://www.dlaaust.com/">David Lock Associates</a> and author of ‘<a href="http://www.publish.csiro.au/pid/7015.htm">Essentials of Urban Design</a>.’ This article recently appeared on the David Lock Associates website.
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