Salisbury Downs flood map & planning overlays
A planning-constraint profile of Salisbury Downs
(City of Salisbury, SA) - 2.8 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
2.8 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Salisbury Downs's boundary, with the flood, bushfire and environmental overlays drawn on top. Amber hatching is the published aircraft noise (ANEF) contour. 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 Salisbury Downs
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.
Inside an aircraft noise contour
5% of the suburb's land sits inside a published ANEF or airport-environs contour. Contours vary street by street, so whether a particular lot is inside one needs a property-level check.
Highest contour present
Under AS 2021, land between ANEF 20 and 25 is conditionally acceptable for houses, usually with noise attenuation built in. The contour is a forecast, not a measurement at any one house.
Contours held
- SA Planning and Design Code aircraft noise
Observed overflight - sampled 4 Sep to 3 Oct 2026
typical observed square 4 a day
Night movements: observed, lowest 4,500 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.
Salisbury Downs at a glance
How Salisbury Downs is zoned
Selling in Salisbury Downs? 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 2.8 km², Salisbury Downs is moderately constrained by planning overlays. About 26% of the suburb sits within a mapped flood overlay. The dominant land-use zone is General Neighbourhood. The median lot measures about 584 m² across 2,772 parcels.
Who lives in Salisbury Downs
Census 2021 figures published by the ABS for the Salisbury Downs 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 846, and decile 1 within South Australia. The national average is 1000.
Age profile
Share of Salisbury Downs's 6,296 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Salisbury, the wider ABS statistical area containing Salisbury Downs. There is no annual population series published at suburb level, so this describes the surrounding area rather than Salisbury Downs itself.
15,639 in 2001 to 19,146 in 2025, up 22%.
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.
Salisbury Downs 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) | Inside a held contour | 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 3 October 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 Salisbury Downs 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 98% of Salisbury Downs. 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 Salisbury Downs lot.
See what's in the $9 report →Salisbury Downs planning - frequently asked
Is Salisbury Downs flood-prone?
About 26% of Salisbury Downs falls within a mapped flood overlay, against the council-wide suburb average of 26%.
Is Salisbury Downs bushfire-prone?
Bushfire mapping covers Salisbury Downs and little to none of it is mapped as bushfire-prone (the City of Salisbury average is 8%).
Is Salisbury Downs affected by aircraft noise?
About 5% of Salisbury Downs sits inside a published aircraft noise contour, and the highest contour present is ANEF 20 - under AS 2021, land between ANEF 20 and 25 is conditionally acceptable for houses, usually with noise attenuation in the build. ANEF contours are forecasts published per airport and used to control noise-sensitive development; they are not a measurement at any one house, and a property can sit under a flight path and outside every contour.
Is Salisbury Downs under a flight path?
Aircraft were observed below 3,000 ft over about 98% of Salisbury Downs, and over about 100% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 1,000 ft. At the busiest point in the suburb about 55 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 Salisbury Downs?
The dominant planning zone in Salisbury Downs is General Neighbourhood, though the suburb also includes Suburban Activity Centre and Open Space.
Does Salisbury Downs have heritage-listed places?
No heritage-listed places are on record within Salisbury Downs.
What is the typical lot size in Salisbury Downs?
Across 2,772 surveyed parcels in Salisbury Downs, the median lot size is about 584 m². There are also 35 registered easements mapped in the suburb.
Does Salisbury Downs have a train station?
There is no train station inside Salisbury Downs itself. The suburb is served by 22 bus stops.
What is the population of Salisbury Downs?
At the 2021 Census Salisbury Downs had 6,296 usual residents, with a median age of 37 and an average household size of 2.6 people. The wider Salisbury statistical area, which contains Salisbury Downs, went from 15,639 people in 2001 to 19,146 in 2025, up 22%.
Is Salisbury Downs an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Salisbury Downs scores 846 and sits in decile 1 of 10 nationally and decile 1 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Salisbury Downs?
Median household income in Salisbury Downs was $1,134 a week at the 2021 Census, against $1,276 for the typical suburb in City of Salisbury. Median rent was $273 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Salisbury | 1.5 km | 26% | 0% |
| Parafield Gardens | 1.8 km | 22% | 0% |
| Salisbury South | 2.0 km | 54% | 0% |
| Paralowie | 2.0 km | 29% | 0% |
| Brahma Lodge | 2.6 km | 33% | 0% |
| Parafield | 2.7 km | 28% | 0% |
| Salisbury North | 3.1 km | 38% | 0% |
| Green Fields | 3.3 km | 26% | 0% |
| Salisbury Plain | 3.3 km | 26% | 0% |
| Globe Derby Park | 3.8 km | 54% | 0% |