Hallett Cove flood map & planning overlays
A planning-constraint profile of Hallett Cove
(City of Marion, SA) - 10.03 km², mapped from live council and
state overlay data. This suburb is relatively unconstrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
10.03 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to Hallett Cove's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Hallett Cove
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled 4 Sep to 26 Sep 2026
typical observed square 1 a day
Night movements: observed, lowest 2,500 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Hallett Cove at a glance
How Hallett Cove is zoned
Selling in Hallett Cove? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 10.03 km², Hallett Cove is relatively unconstrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay. There are 4 heritage-listed sites on record, and the dominant land-use zone is Hills Neighbourhood. The median lot measures about 665 m² across 5,441 parcels.
Who lives in Hallett Cove
Census 2021 figures published by the ABS for the Hallett Cove suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 1025, and decile 8 within South Australia. The national average is 1000.
Age profile
Share of Hallett Cove's 12,512 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Hallett Cove, the wider ABS statistical area containing Hallett Cove. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hallett Cove itself.
12,484 in 2001 to 12,873 in 2025, up 3%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Hallett Cove data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| 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 |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 26 September 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 Hallett Cove 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.
Aircraft have been seen below 3,000 ft over about 18% of Hallett Cove. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Hallett Cove lot.
See what's in the $9 report →Hallett Cove planning - frequently asked
Is Hallett Cove flood-prone?
Flood mapping covers Hallett Cove and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 14%).
Is Hallett Cove bushfire-prone?
Bushfire mapping covers Hallett Cove and little to none of it is mapped as bushfire-prone (the City of Marion average is 9%).
Is Hallett Cove under a flight path?
Aircraft were observed below 3,000 ft over about 18% of Hallett Cove, and over about 36% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 500 ft, with an average of 3,000 ft. At the busiest point in the suburb about 1 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in Hallett Cove?
The dominant planning zone in Hallett Cove is Hills Neighbourhood, though the suburb also includes Hills Face and Conservation.
Does Hallett Cove have heritage-listed places?
Hallett Cove has 4 heritage-listed places on record.
What is the typical lot size in Hallett Cove?
Across 5,441 surveyed parcels in Hallett Cove, the median lot size is about 665 m².
Does Hallett Cove have a train station?
There is no train station inside Hallett Cove itself. The suburb is served by 89 bus stops.
What is the population of Hallett Cove?
At the 2021 Census Hallett Cove had 12,512 usual residents, with a median age of 43 and an average household size of 2.6 people. The wider Hallett Cove statistical area, which contains Hallett Cove, went from 12,484 people in 2001 to 12,873 in 2025, up 3%.
Is Hallett Cove an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hallett Cove scores 1025 and sits in decile 8 of 10 nationally and decile 8 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Hallett Cove?
Median household income in Hallett Cove was $1,871 a week at the 2021 Census, against $1,579 for the typical suburb in City of Marion. Median rent was $380 a week and the median mortgage repayment $1,700 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Sheidow Park | 1.8 km | 0% | 0% |
| Reynella City of Onkaparinga |
2.7 km | <1% | 0% |
| Marino | 2.8 km | 14% | 0% |
| Trott Park | 3.0 km | <1% | 0% |
| Old Reynella City of Onkaparinga |
3.7 km | 2% | 23% |
| Lonsdale City of Onkaparinga |
3.9 km | 0% | 47% |
| Seacliff Park | 4.0 km | 16% | 0% |
| Kingston Park City of Holdfast Bay |
4.1 km | 54% | 0% |
| Reynella East City of Onkaparinga |
4.3 km | 11% | 4% |
| O'Halloran Hill | 4.4 km | 0% | 44% |