O'Halloran Hill flood map & planning overlays

A planning-constraint profile of O'Halloran Hill (City of Marion, SA) - 7.04 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.

Planning schematicO'Halloran Hill

Constraint readout

7.04 km² - this suburb is highly constrained by planning overlays.

Flood overlay 23%

below council avg (61%) · #22 of 26 mapped council suburbs

Bushfire-prone 44%

5.0× council avg (9%) · #3 of 26 mapped council suburbs

Environmental28%

5.4× council avg (5%) · #2 of 26 in council

Heritage sites 11 Noise corridor 1% Mostly Conservation

Elevation hillshade with street names, clipped to O'Halloran Hill'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.

O'Halloran Hill at a glance

Parcels 1,318 Median lot 717 m² Bus stops 29

How O'Halloran Hill is zoned

Conservation 53%

Hills Face 24%

General Neighbourhood 15%

Hills Neighbourhood 5%

Rural 1%

Suburban Activity Centre 1%

Selling in O'Halloran Hill? 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 O'Halloran Hill address.

Across its 7.04 km², O'Halloran Hill is highly constrained by planning overlays. About 23% of the suburb sits within a mapped flood overlay, and 44% is flagged bushfire-prone. There are 11 heritage-listed sites on record, and the dominant land-use zone is Conservation. The median lot measures about 717 m² across 1,318 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.

O'Halloran Hill 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 O'Halloran Hill 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 →

O'Halloran Hill planning - frequently asked

Where can I see a flood map of O'Halloran Hill?

The schematic on this page is a O'Halloran Hill flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 23% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any O'Halloran Hill address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.

Is O'Halloran Hill flood-prone?

About 23% of O'Halloran Hill falls within a mapped flood overlay, against the council-wide suburb average of 61%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.

Is O'Halloran Hill bushfire-prone?

Yes - around 44% of O'Halloran Hill is mapped as bushfire-prone, compared with a City of Marion average of 9%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.

What is the zoning in O'Halloran Hill?

The dominant planning zone in O'Halloran Hill is Conservation, though the suburb also includes Hills Face and General Neighbourhood. Zoning sets what you can build and do on a site, and can differ lot by lot.

Does O'Halloran Hill have heritage-listed places?

O'Halloran Hill has 11 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 O'Halloran Hill?

Across 1,318 surveyed parcels in O'Halloran Hill, the median lot size is about 717 m².

Does O'Halloran Hill have a train station?

There is no train station inside O'Halloran Hill itself. The suburb is served by 29 bus stops.

Do I need a planning report for a O'Halloran Hill property?

An O'Halloran Hill 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
Trott Park	1.9 km	59%	0%
Seaview Downs	2.2 km	8%	0%
Seacombe Heights	2.6 km	10%	2%
Seacliff Park	2.7 km	13%	0%
Happy Valley City of Onkaparinga	2.7 km	41%	93%
Flagstaff Hill City of Onkaparinga	2.9 km	67%	100%
Darlington	2.9 km	39%	84%
Sheidow Park	3.0 km	83%	0%
Reynella East City of Onkaparinga	3.4 km	11%	4%
Marino	3.5 km	20%	0%

See all City of Marion suburb profiles →