Christie Downs flood map & planning overlays
A planning-constraint profile of Christie Downs (City of Onkaparinga, SA) - 3.21 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
3.21 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Christie Downs'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.
Christie Downs at a glance
How Christie Downs is zoned
Selling in Christie Downs? 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 Christie Downs address.
Across its 3.21 km², Christie Downs is highly constrained by planning overlays. About 99% of the suburb sits within a mapped flood overlay. The dominant land-use zone is Housing Diversity Neighbourhood. The median lot measures about 684 m² across 2,282 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.
Christie Downs 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 Christie Downs 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 →Christie Downs planning - frequently asked
Where can I see a flood map of Christie Downs?
The schematic on this page is a Christie Downs flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 99% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Christie Downs address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Christie Downs flood-prone?
About 99% of Christie Downs 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 Christie Downs bushfire-prone?
Bushfire mapping covers Christie Downs and little to none of it is mapped as bushfire-prone (the City of Onkaparinga average is 69%). Always confirm for the exact lot, as mapping can change.
What is the zoning in Christie Downs?
The dominant planning zone in Christie Downs is Housing Diversity Neighbourhood, though the suburb also includes General Neighbourhood and Strategic Employment. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Christie Downs have heritage-listed places?
No heritage-listed places are on record within Christie Downs. Even so, it is worth confirming for an individual property before any works.
What is the typical lot size in Christie Downs?
Across 2,282 surveyed parcels in Christie Downs, the median lot size is about 684 m².
Does Christie Downs have a train station?
There is no train station inside Christie Downs itself. The suburb is served by 33 bus stops.
Do I need a planning report for a Christie Downs property?
A Christie Downs 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 |
|---|---|---|---|
| Noarlunga Centre | 1.2 km | 100% | 0% |
| Christies Beach | 1.7 km | 93% | 37% |
| O'Sullivan Beach | 1.9 km | 56% | 78% |
| Hackham West | 2.3 km | 32% | 0% |
| Lonsdale | 2.6 km | 3% | 47% |
| Port Noarlunga | 3.0 km | 61% | 46% |
| Morphett Vale | 3.1 km | 66% | 25% |
| Noarlunga Downs | 3.3 km | 69% | 18% |
| Huntfield Heights | 3.4 km | 29% | 32% |
| Hackham | 3.7 km | 18% | 42% |