Western Australia · Region
Home builders in Perth South East
Canning Vale, Southern River and Thornlie — all under City of Gosnells.
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- Solvency re-checked
Perth South East suburb by suburb
| Suburb | Residential zones | R-Code density | Bushfire-prone | Overlays |
|---|---|---|---|---|
| Canning Vale | Residential, Urban development | R2.5–R80 | Mapped | 3 |
| Southern River | Residential, Urban development | R20–R80 | Mapped | 5 |
| Thornlie | Residential | R20–R100 | Mapped | 0 |
Reading the table
- 7 overlay families are mapped across the region; Southern River carries the most at 5.
- The 3 mapped suburbs cover 50 km² between them — Canning Vale is the largest at 25 km² and Thornlie the smallest at 12 km².
What is mapped across Perth South East
| Mapped only in some suburbs | Where (in the suburb, not on a given block) |
|---|---|
| Special Control Area - Development Contribution Area | Canning Vale and Southern River |
| Development contribution area | Canning Vale |
| SCA - kennel buffer | Southern River |
| SCA - wetland protection areas - conservation category wetland | Southern River |
| SCA - wetland protection areas - environmental protection policy swan coastal plain lakes | Southern River |
| SCA - wetland protection areas - groundwater environmental protection area | Southern River |
| Special Control Area - Infrastructure | Canning Vale |
Which Perth South East suburb suits which build
- Room to move
Canning Vale is the largest at 25.4 km², Thornlie the most compact at 11.6 km².
- Fewest planning controls
Thornlie, with 0 overlay families mapped against 5 in Southern River.
Questions about building in Perth South East
Which council approves building work in Perth South East?
City of Gosnells, for all 3 mapped Perth South East suburbs, under the Gosnells Local Planning Scheme No. 24.
Is bushfire-prone land mapped in Perth South East?
Yes, in all 3 mapped Perth South East suburbs: Canning Vale, Southern River and Thornlie.
Which Perth South East suburb has the most planning constraints?
Southern River: 5 overlay families against 0 in Thornlie. SCA - kennel buffer, SCA - wetland protection areas - conservation category wetland, SCA - wetland protection areas - environmental protection policy swan coastal plain lakes and SCA - wetland protection areas - groundwater environmental protection area are mapped in Southern River and in none of the others.
What planning zones apply across Perth South East?
2: Residential and Urban development. Widest range: Canning Vale, at 2.
What R-codes apply in Perth South East?
Canning Vale R2.5–R80, Southern River R20–R80, Thornlie R20–R100.
Lodge with: City of Gosnells, Gosnells Local Planning Scheme No. 24. Read 2026-09-19.
Licence checked on Building and Energy WA's register, insurance sighted, solvency re-checked, service area confirmed. How the check works
Building in Perth South East?
Tell us the suburb and what you are building. Licence checked with Building and Energy WA, insurance sighted, still trading, and genuinely working in Canning Vale, Southern River and Thornlie. If we cannot find one worth recommending, we will say so.
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