Blanche Harbor flood map & planning overlays
A planning-constraint profile of Blanche Harbor (Port Augusta City Council, SA) - 1.81 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
1.81 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Blanche Harbor'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.
Blanche Harbor at a glance
How Blanche Harbor is zoned
Selling in Blanche Harbor? 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 Blanche Harbor address.
Across its 1.81 km², Blanche Harbor is highly constrained by planning overlays. About 33% of the suburb sits within a mapped flood overlay, and 33% is flagged bushfire-prone. The dominant land-use zone is Coastal Waters and Offshore Islands. The median lot measures about 1,094 m² across 49 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.
Blanche Harbor 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 Blanche Harbor 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 →Blanche Harbor planning - frequently asked
Where can I see a flood map of Blanche Harbor?
The schematic on this page is a Blanche Harbor flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 33% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Blanche Harbor address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Blanche Harbor flood-prone?
About 33% of Blanche Harbor falls within a mapped flood overlay, against the council-wide suburb average of 78%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Blanche Harbor bushfire-prone?
Yes - around 33% of Blanche Harbor is mapped as bushfire-prone, compared with a Port Augusta City Council average of 76%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Blanche Harbor?
The dominant planning zone in Blanche Harbor is Coastal Waters and Offshore Islands, though the suburb also includes Rural Shack Settlement and Commonwealth Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Blanche Harbor have heritage-listed places?
No heritage-listed places are on record within Blanche Harbor. Even so, it is worth confirming for an individual property before any works.
What is the typical lot size in Blanche Harbor?
Across 49 surveyed parcels in Blanche Harbor, the median lot size is about 1,094 m².
Do I need a planning report for a Blanche Harbor property?
A Blanche Harbor 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 |
|---|---|---|---|
| Commissariat Point | 9.5 km | 46% | 46% |
| Winninowie | 14.7 km | 78% | 78% |
| Miranda | 15.7 km | 55% | 55% |
| Port Paterson | 16.3 km | 67% | 69% |
| Douglas Point The Corporation of the City of Whyalla |
18.4 km | 74% | 74% |
| Stirling North | 21.0 km | 100% | 97% |
| Nectar Brook The District Council of Mount Remarkable |
21.4 km | 100% | 100% |
| Port Augusta | 21.8 km | 94% | 68% |
| Douglas Point South The Corporation of the City of Whyalla |
21.9 km | 80% | 80% |
| Mambray Creek The District Council of Mount Remarkable |
23.4 km | 89% | 89% |