Horsnell Gully flood map & planning overlays
A planning-constraint profile of Horsnell Gully (Adelaide Hills Council, SA) - 8.15 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
8.15 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Horsnell Gully'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.
Horsnell Gully at a glance
How Horsnell Gully is zoned
Selling in Horsnell Gully? 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 Horsnell Gully address.
Across its 8.15 km², Horsnell Gully is highly constrained by planning overlays. About 100% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Hills Face. The median lot measures about 78,622 m² across 34 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.
Horsnell Gully 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 Horsnell Gully 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 →Horsnell Gully planning - frequently asked
Where can I see a flood map of Horsnell Gully?
The schematic on this page is a Horsnell Gully flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 100% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Horsnell Gully address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Horsnell Gully flood-prone?
About 100% of Horsnell Gully falls within a mapped flood overlay, against the council-wide suburb average of 94%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Horsnell Gully bushfire-prone?
Yes - around 100% of Horsnell Gully is mapped as bushfire-prone, compared with a Adelaide Hills Council average of 100%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Horsnell Gully?
The dominant planning zone in Horsnell Gully is Hills Face, though the suburb also includes Conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Horsnell Gully have heritage-listed places?
Horsnell Gully has 2 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 Horsnell Gully?
Across 34 surveyed parcels in Horsnell Gully, the median lot size is about 78,622 m².
Do I need a planning report for a Horsnell Gully property?
A Horsnell Gully 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 |
|---|---|---|---|
| Skye City of Burnside |
1.7 km | 9% | 100% |
| Greenhill | 2.1 km | 100% | 100% |
| Teringie | 2.3 km | 100% | 100% |
| Auldana City of Burnside |
2.5 km | 18% | 100% |
| Stonyfell City of Burnside |
2.6 km | 8% | 83% |
| Wattle Park City of Burnside |
2.6 km | 16% | 72% |
| Ashton | 2.6 km | 100% | 100% |
| Rosslyn Park City of Burnside |
3.0 km | 27% | 41% |
| Woodforde | 3.3 km | 100% | 97% |
| Norton Summit | 3.4 km | 100% | 100% |