Hewett flood map & planning overlays
A planning-constraint profile of Hewett (Light Regional Council, SA) - 1.67 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
1.67 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hewett'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.
Hewett at a glance
How Hewett is zoned
Selling in Hewett? 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 Hewett address.
Across its 1.67 km², Hewett is highly constrained by planning overlays. About 28% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Neighbourhood. The median lot measures about 814 m² across 1,057 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.
Hewett 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 Hewett 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 →Hewett planning - frequently asked
Where can I see a flood map of Hewett?
The schematic on this page is a Hewett flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 28% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Hewett address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Hewett flood-prone?
About 28% of Hewett 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 Hewett bushfire-prone?
Yes - around 100% of Hewett is mapped as bushfire-prone, compared with a Light Regional Council average of 100%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Hewett?
The dominant planning zone in Hewett is Neighbourhood, though the suburb also includes Township Activity Centre and General Neighbourhood. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Hewett have heritage-listed places?
Hewett has 1 heritage-listed place 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 Hewett?
Across 1,057 surveyed parcels in Hewett, the median lot size is about 814 m².
Does Hewett have a train station?
There is no train station inside Hewett itself. The suburb is served by 11 bus stops.
Do I need a planning report for a Hewett property?
A Hewett 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 |
|---|---|---|---|
| Willaston Town of Gawler |
1.2 km | 30% | 75% |
| Gawler Belt | 2.2 km | 58% | 98% |
| Gawler Town of Gawler |
2.3 km | 46% | 8% |
| Gawler East Town of Gawler |
2.9 km | 43% | 83% |
| Gawler West Town of Gawler |
3.2 km | 78% | 44% |
| Reid Town of Gawler |
3.3 km | 58% | 92% |
| Gawler South Town of Gawler |
3.5 km | 48% | 70% |
| Concordia The Barossa Council |
3.8 km | 96% | 100% |
| Evanston Town of Gawler |
4.7 km | 36% | 45% |
| Roseworthy | 4.9 km | 100% | 99% |