Perth’s push toward urban infill development is being driven by a harsh set of realities: a persistent housing shortage, rising infrastructure costs on the urban fringe and a policy preference for a more effective utilisation of existing transport and services.
At a state level, the intent is to concentrate more growth within established suburbs to reduce sprawl, improve public transport and meet long-term housing targets under Perth and Peel @ 3.5 Million.
In practice, though, the gap between policy intent and deliverable infill development sites is still quite significant. Fragmented land ownership, community resistance in established suburbs and increasingly complex planning controls mean that not every mapped opportunity will translate into a viable project.
What Is Infill Development and Why Does WA Want More of It?
Infill development refers to the redevelopment or intensified use of land within an already established urban area, as opposed to expanding the city outward through greenfield growth.
In Western Australia, the rationale is largely structural. The cost of extending roads, sewer, power and public transport to outer growth areas continues to rise, while inner and middle-ring suburbs already have underused land, ageing housing stock and transport infrastructure with capacity to spare.
From a planning perspective, infill development site opportunities are intended to:
- Make better use of existing infrastructure
- Support increased usage of public transport
- Reduce pressure on fringe land release
- Help meet infill housing targets tied to population growth
There’s also a policy assumption that denser, more compact cities can improve long-term affordability and efficiency. However, criticism of Perth’s infill targets often highlights that actual development has consistently fallen short of projections, largely due to approval delays and market constraints.
The Policy Toolkit Driving Infill in Perth
Perth’s infill push isn’t being driven by a single policy, but by a layered framework across state and local government levels.
Perth & Peel @ 3.5 Million by 2050
This is the overarching strategic framework guiding population distribution and land supply across the metropolitan region. It sets an expectation that a substantial portion of future growth must be absorbed through urban infill as opposed to fringe expansion.
While it provides a general direction, it doesn’t directly control approvals, which is where delivery often slows down.
SPP7, the Activity Centres Policy & R-Code reforms
State Planning Policy (SPP7) and the associated Activity Centres Policy are key levers for increasing density around transport and service hubs. They guide local governments to:
- Increase densities in designated activity centres
- Support mixed-use redevelopment
- Encourage transit-oriented development
Importantly, councils across Perth are progressively aligning their local planning schemes with SPP7 principles, which has helped streamline some approvals where proposals clearly align with centre-based density objectives.
Alongside this, R-Code reforms have gradually increased permissible densities in select zones, although implementation is still uneven across local government areas.
What Infill Policy Means for Your Site Selection
For developers, policy direction is only useful insofar as it translates into sites that are realistically developable. The key challenge is identifying where zoning, planning intent and market demand align.
Activity centres allow for higher density, but stricter requirements
Activity centres are the most policy-supported locations for infill development, but they come with the most requirements around design quality, parking, overshadowing and community impact.
On paper, these centres allow for better height and density outcomes. In reality, they introduce a more complex assessment process with higher expectations around design quality, parking, overshadowing and integration with surrounding lower-density areas.
This creates an improved yield potential but longer approval timelines and more iterations through design development. For most projects, success in activity centres comes down to how well a proposal can anticipate review requirements rather than react to them.
Development in established suburbs must balance character and yield
Many of these areas sit under character controls, heritage overlays or streetscape policies that prioritise consistency over intensification. While zoning might technically allow multi-dwelling outcomes under the R-Codes, the buildable envelope is usually narrower once review and neighbour impacts are considered.
Yield expectations therefore need to be balanced against setbacks, visual bulk limits, tree retention requirements and community sentiment.
Townhouses, villas & multi-units present an attractive alternative to detached housing
Medium-density housing formats (especially townhouses, villas and small multi-unit developments) are still the most common form of infill development throughout Perth’s middle ring.
They usually align more easily with R-Code requirements and tend to attract fewer community objections than larger apartment developments. From a delivery perspective, they also tend to sit in a sweet spot: enough density uplift to justify redevelopment, but not so aggressive that approvals become uncertain.
In most established suburbs, this kind of development is where policy intent and market reality actually meet.
Greenfield vs Infill comparison
Infrastructure:
Greenfield: New roads, utilities and community infrastructure must be delivered or extended.
Infill: Existing infrastructure is already in place, though upgrades may be necessary.Site structure:
Greenfield: Larger, more uniform land parcels that are easier to plan.
Infill: Smaller, fragmented or irregular lots that often need site-specific solutions.Planning approvals:
Greenfield: Generally more predictable and consistent approval pathways.
Infill: Approvals will vary much more from site to site and can take longer.Development constraints:
Greenfield: Fewer neighbouring properties and existing site constraints.
Infill: Must respond to neighbouring development, existing services and local planning requirements.Market position:
Greenfield: Typically targets growth corridors and price-sensitive buyers.
Infill: Located in established suburbs with better amenities and higher land values.Key risks:
Greenfield: Infrastructure delivery, market timing and sales absorption.
Infill: Planning complexity, site constraints and community objections.
The distinction here isn’t about “easy vs. hard” so much as it is about where risk sits in the development cycle. Greenfield pushes risk into delivery timing. Infill concentrates it in planning and site acquisition.
Where Perth's Infill Hotspots Are Emerging
Infill opportunity in Perth is highly clustered rather than evenly distributed. It follows transport investment, established amenities and existing urban structures, not just zoning maps.
Inner ring: Subiaco, Fremantle, South Perth, Victoria Park
These suburbs are still the most consistently active areas for urban infill projects. They combine strong demand fundamentals with established infrastructure and proximity to employment hubs.
However, they’re also among the most tightly managed planning environments in the city. Character expectations, community sensitivities and design scrutiny all play a role in shaping what actually gets approved versus what’s theoretically possible.
Activity centres
Designated activity centres are the primary policy mechanism for long-term density growth under WA planning frameworks such as SPP7.
While these areas are intended to absorb higher-density outcomes over time, delivery is uneven. Some centres are actively transitioning, while others are still constrained by local governments, infrastructure readiness or fragmented land ownership.
The gap between designation and actual redevelopment is where much of the current infill target criticism sits; not with the intent of the policy, but in its implementation and execution.
Transit corridors
Transit-oriented development is more than ever shaping urban infill development outcomes, especially where it relates to train stations and corridor upgrades.
Station precincts undergoing renewal tend to attract medium- and higher-density proposals over time, but the timing is typically tied to infrastructure investment cycles as opposed to zoning reforms alone.
Key Takeaways for Developers Evaluating an Infill Site
When assessing an infill development site, zoning compliance is just the beginning. The real feasibility test is across a wider set of constraints you’ll have to take into account:
- Zoning and R-Code controls
- Activity centre or corridor designation status
- Transport access and walkability fundamentals
- Heritage or character area overlays
- Infrastructure capacity (water, sewer, power)
- Community opposition risk and likelihood of refusal or redesign cycles
A site can be “allowed” under planning rules and still fail commercially once delay risk, redesign pressure and yield reduction are factored in. That gulf between theoretical and deliverable outcomes is the cause of many a proposal breakdown.
How Novus Projects Delivers Infill Developments That Work
Successful infill development in Perth is about understanding how policy intent can actually translate into a tangible outcome on site.
At Novus Projects, site evaluation focuses on whether the underlying conditions support project feasibility, not just potential density. That includes assessing how local planning authorities are actually interpreting policy, how constrained a site is likely to become through design development and where return expectations might need to be recalibrated early on.
Maximum density on paper isn’t what we chase. Instead, we identify and develop projects where approval risk, construction feasibility and market demand all overlap.
Is your site infill-ready? Let's discuss
Assessing a site in Perth comes down to how the planning framework, physical constraints and market conditions line up in reality.
Zoning is only one part of the picture. The more decisive factors are how the site sits within its local policy context, what level of design discretion is likely to be applied and whether the surrounding area can realistically absorb additional density without triggering any redesigns or delays.
If you’re weighing up a site, contact Novus Projects to review the feasibility of your project before any time or money is committed to understand what’s realistic for your portfolio.