Willunga South flood map & planning overlays
A planning-constraint profile of Willunga South (City of Onkaparinga, SA) - 14.25 km², mapped from live council and state overlay data. This suburb is highly constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
14.25 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Willunga South's boundary, with the flood, bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address.
Willunga South at a glance
How Willunga South is zoned
Selling in Willunga South? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose - a $9 planning report pulls them at the lot level for any Willunga South address.
Across its 14.25 km², Willunga South is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 18 heritage-listed sites on record, and the dominant land-use zone is Hills Face. The median lot measures about 21,440 m² across 207 parcels. These figures are suburb-wide - the overlays that actually apply to a given lot can differ block to block, which is what a property-level check tells you.
Willunga South data sources and coverage
Every figure below is an aggregate for the suburb boundary. “Not mapped” means LayeredGeo does not hold a source layer covering this suburb; it is never an all-clear for a particular property.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Demographics | Not available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 20 August 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Willunga South address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
See what's in the $9 report →Willunga South planning - frequently asked
Where can I see a flood map of Willunga South?
The schematic on this page is a Willunga South flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 6% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Willunga South address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Willunga South flood-prone?
About 6% of Willunga South falls within a mapped flood overlay, against the council-wide suburb average of 40%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Willunga South bushfire-prone?
Yes - around 100% of Willunga South is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Willunga South?
The dominant planning zone in Willunga South is Hills Face, though the suburb also includes Rural and Hills Neighbourhood. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Willunga South have heritage-listed places?
Willunga South has 18 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
What is the typical lot size in Willunga South?
Across 207 surveyed parcels in Willunga South, the median lot size is about 21,440 m².
Do I need a planning report for a Willunga South property?
A Willunga South planning report pulls every overlay - zoning, flood, bushfire, heritage and environmental - that touches a single lot, on live council and state data. The interactive map preview is free; a full PDF report is $9.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Pages Flat Alexandrina Council |
3.9 km | 100% | 100% |
| Willunga Hill Alexandrina Council |
4.2 km | 100% | 100% |
| Willunga | 4.2 km | 12% | 99% |
| Whites Valley | 4.3 km | 12% | 100% |
| Sellicks Hill | 5.6 km | 50% | 100% |
| Aldinga | 6.3 km | 14% | 99% |
| Tatachilla | 7.5 km | 5% | 100% |
| Mount Compass Alexandrina Council |
7.6 km | 100% | 100% |
| Hope Forest Alexandrina Council |
7.7 km | 100% | 100% |
| Montarra Alexandrina Council |
7.8 km | 100% | 100% |