New South Wales · Region
Home builders in South West Sydney
8 suburbs written under 4 separate planning schemes. The rules that govern your block are the ones in its own scheme, not the ones a builder learned in the council next door.
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South West Sydney suburb by suburb
| Suburb | Residential zones | Height limit | Bushfire-prone | Overlays |
|---|---|---|---|---|
| Austral | R2 Low Density, R3 Medium Density, R4 High Density | — | Mapped | 4 |
| Bardia | R1 General, R3 Medium Density | — | Mapped | 1 |
| Casula | R2 Low Density, R3 Medium Density, R4 High Density | 15m | Mapped | 1 |
| Cobbitty | R1 General, R2 Low Density, R5 Large Lot | — | Mapped | 1 |
| Gregory Hills | R1 General, R2 Low Density | — | Mapped | 1 |
| Leppington | R2 Low Density, R3 Medium Density, R4 High Density | — | Mapped | 1 |
| Oran Park | R1 General, R2 Low Density, R3 Medium Density | — | Mapped | 1 |
| Prestons | R2 Low Density, R3 Medium Density | 15m | Mapped | 0 |
Reading the table
- Heritage mapping runs from 18 in Leppington down to none in Prestons.
- 4 overlay families are mapped across the region; Austral carries the most at 4.
- The 8 mapped suburbs cover 127 km² between them — Cobbitty is the largest at 52 km² and Bardia the smallest at 2.1 km².
What is mapped across South West Sydney
| Mapped only in some suburbs | Where (in the suburb, not on a given block) |
|---|---|
| Heritage — Item - General | Austral, Bardia, Casula, Cobbitty, Gregory Hills, Leppington and Oran Park |
| Heritage — Heritage Conservation Area | Austral |
| Heritage — Item - Archaeological | Austral |
| Heritage — Item - Landscape | Austral |
Which South West Sydney suburb suits which build
- Room to move
Cobbitty is the largest at 52.2 km², Bardia the most compact at 2.1 km².
- Fewest planning controls
Prestons, with 0 overlay families mapped against 4 in Austral.
Questions about building in South West Sydney
Which council approves building work in South West Sydney?
3: Austral, Casula and Prestons with Liverpool Council; Bardia with Campbelltown Council; Cobbitty, Gregory Hills, Leppington and Oran Park with Camden Council.
Is bushfire-prone land mapped in South West Sydney?
Yes, in all 8 mapped South West Sydney suburbs: Austral, Bardia, Casula, Cobbitty, Gregory Hills, Leppington, Oran Park and Prestons.
Which South West Sydney suburb has the most planning constraints?
Austral: 4 overlay families against 0 in Prestons. Heritage — Item - Landscape, Heritage — Item - Archaeological and Heritage — Heritage Conservation Area are mapped in Austral and in none of the others.
What planning zones apply across South West Sydney?
5: R1 General Residential, R2 Low Density Residential, R3 Medium Density Residential, R4 High Density Residential and R5 Large Lot Residential. Widest range: Casula, at 4.
Is heritage mapped in South West Sydney?
Heritage records intersecting each suburb: Leppington 18, Cobbitty 17, Austral 15, Casula 8, Bardia 1, Gregory Hills 1, Oran Park 1. None in Prestons.
What is the minimum lot size across South West Sydney?
Casula: 300-349 m² minimum; Prestons: 300-349 m² minimum.
Lodge with: Austral, Casula and Prestons with Liverpool Council (State Environmental Planning Policy (Precincts—Western Parkland City) 2021); Bardia with Campbelltown Council (Campbelltown Local Environmental Plan 2015); Cobbitty, Gregory Hills, Leppington and Oran Park with Camden Council (Camden Local Environmental Plan 2010). Read 2026-09-20.
Licence checked on NSW Fair Trading's register, insurance sighted, solvency re-checked, service area confirmed. How the check works
Building in South West Sydney?
Tell us the suburb and what you are building. Licence checked with NSW Fair Trading, insurance sighted, still trading, and genuinely working in Austral, Bardia and Casula. If we cannot find one worth recommending, we will say so.
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