Happy Valley flood map & planning overlays
A planning-constraint profile of Happy Valley (City of Onkaparinga, SA) - 13.13 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
13.13 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Happy Valley'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.
Happy Valley at a glance
How Happy Valley is zoned
Selling in Happy Valley? 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 Happy Valley address.
Across its 13.13 km², Happy Valley is highly constrained by planning overlays. About 41% of the suburb sits within a mapped flood overlay, and 93% is flagged bushfire-prone. There are 7 heritage-listed sites on record, and the dominant land-use zone is Open Space. The median lot measures about 699 m² across 4,737 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.
Happy Valley 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 Happy Valley 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 →Happy Valley planning - frequently asked
Where can I see a flood map of Happy Valley?
The schematic on this page is a Happy Valley 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 Happy Valley address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Happy Valley flood-prone?
About 41% of Happy Valley 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 Happy Valley bushfire-prone?
Yes - around 93% of Happy Valley 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 Happy Valley?
The dominant planning zone in Happy Valley is Open Space, though the suburb also includes General Neighbourhood and Hills Neighbourhood. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Happy Valley have heritage-listed places?
Happy Valley has 7 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 Happy Valley?
Across 4,737 surveyed parcels in Happy Valley, the median lot size is about 699 m².
Does Happy Valley have a train station?
There is no train station inside Happy Valley itself. The suburb is served by 92 bus stops.
Do I need a planning report for a Happy Valley property?
A Happy Valley 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 |
|---|---|---|---|
| Aberfoyle Park | 2.3 km | 84% | 76% |
| Reynella East | 2.5 km | 11% | 4% |
| O'Halloran Hill City of Marion |
2.7 km | 23% | 44% |
| Flagstaff Hill | 2.9 km | 67% | 100% |
| Trott Park City of Marion |
3.0 km | 59% | 0% |
| Old Reynella | 3.7 km | 57% | 23% |
| Woodcroft | 4.1 km | 21% | 76% |
| Sheidow Park City of Marion |
4.2 km | 83% | 0% |
| Craigburn Farm City of Mitcham |
4.5 km | 43% | 100% |
| Chandlers Hill | 4.6 km | 5% | 100% |