Hillier flood map & planning overlays
A planning-constraint profile of Hillier (Town of Gawler, SA) - 6.87 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
6.87 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hillier'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.
Hillier at a glance
How Hillier is zoned
Selling in Hillier? 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 Hillier address.
Across its 6.87 km², Hillier is highly constrained by planning overlays. About 41% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 20,199 m² across 248 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.
Hillier 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 Hillier 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 →Hillier planning - frequently asked
Where can I see a flood map of Hillier?
The schematic on this page is a Hillier flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 41% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Hillier address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Hillier flood-prone?
About 41% of Hillier falls within a mapped flood overlay, against the council-wide suburb average of 43%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Hillier bushfire-prone?
Yes - around 100% of Hillier is mapped as bushfire-prone, compared with a Town of Gawler average of 73%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Hillier?
The dominant planning zone in Hillier is Rural, though the suburb also includes Rural Horticulture and Residential Park. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Hillier have heritage-listed places?
Hillier has 4 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 Hillier?
Across 248 surveyed parcels in Hillier, the median lot size is about 20,199 m². There are also 16 registered easements mapped in the suburb - an easement can restrict where you can build, so always check the title and overlays for the specific lot.
Does Hillier have a train station?
There is no train station inside Hillier itself. The suburb is served by 2 bus stops.
Do I need a planning report for a Hillier property?
A Hillier 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 |
|---|---|---|---|
| Buchfelde Light Regional Council |
2.2 km | 74% | 100% |
| Evanston Gardens | 2.4 km | 37% | 80% |
| Kudla | 2.6 km | 41% | 100% |
| Munno Para Downs City of Playford |
2.8 km | 29% | 60% |
| Gawler River Light Regional Council |
3.5 km | 84% | 100% |
| Evanston | 3.9 km | 36% | 45% |
| Reid | 4.0 km | 58% | 92% |
| Evanston South | 4.1 km | 22% | 90% |
| Munno Para West City of Playford |
4.3 km | 29% | 4% |
| Gawler West | 4.3 km | 78% | 44% |