Southwark flood map & planning overlays
A planning-constraint profile of Southwark
(City of West Torrens, SA) - 0.26 km², mapped from live council and
state overlay data. This suburb is relatively unconstrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
0.26 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to Southwark'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 Southwark
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
62% 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 25 and 30 is generally unacceptable for new houses; 20 to 25 is conditionally acceptable with noise attenuation. 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 15 a day
Night movements: observed, lowest 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.
Southwark at a glance
How Southwark is zoned
Selling in Southwark? 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 0.26 km², Southwark is relatively unconstrained by planning overlays. About 5% of the suburb sits within a mapped flood overlay. There are 10 heritage-listed sites on record, and the dominant land-use zone is Urban Corridor (Boulevard). The median lot measures about 696 m² across 185 parcels.
Who lives in Southwark
Census 2021 figures published by the ABS for the Southwark 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 1008, and decile 7 within South Australia. The national average is 1000.
Age profile
Share of Southwark's 1,442 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Richmond (SA), the wider ABS statistical area containing Southwark. There is no annual population series published at suburb level, so this describes the surrounding area rather than Southwark itself.
14,913 in 2001 to 18,520 in 2025, up 24%.
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.
Southwark 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 Southwark 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 100% of Southwark. 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 Southwark lot.
See what's in the $9 report →Southwark planning - frequently asked
Is Southwark flood-prone?
About 5% of Southwark falls within a mapped flood overlay, against the council-wide suburb average of 32%.
Is Southwark bushfire-prone?
Bushfire mapping covers Southwark and little to none of it is mapped as bushfire-prone.
Is Southwark affected by aircraft noise?
About 62% of Southwark sits inside a published aircraft noise contour, and the highest contour present is ANEF 25 - under AS 2021, land above ANEF 25 is generally considered unacceptable for new houses, and 20-25 conditionally acceptable with noise attenuation. 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 Southwark under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Southwark, 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 129 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 Southwark?
The dominant planning zone in Southwark is Urban Corridor (Boulevard), though the suburb also includes Urban Corridor (Business) and Open Space.
Does Southwark have heritage-listed places?
Southwark has 10 heritage-listed places on record.
What is the typical lot size in Southwark?
Across 185 surveyed parcels in Southwark, the median lot size is about 696 m².
Does Southwark have a train station?
There is no train station inside Southwark itself. The suburb is served by 6 bus stops.
What is the population of Southwark?
At the 2021 Census Southwark had 1,442 usual residents, with a median age of 39 and an average household size of 2.1 people. The wider Richmond (SA) statistical area, which contains Southwark, went from 14,913 people in 2001 to 18,520 in 2025, up 24%.
Is Southwark an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Southwark scores 1008 and sits in decile 7 of 10 nationally and decile 7 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Southwark?
Median household income in Southwark was $1,429 a week at the 2021 Census, against $1,539 for the typical suburb in City of West Torrens. Median rent was $315 a week and the median mortgage repayment $1,627 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Thebarton | 0.6 km | 3% | 0% |
| Hindmarsh City of Charles Sturt |
1.0 km | 22% | 0% |
| Bowden City of Charles Sturt |
1.2 km | 17% | 0% |
| West Hindmarsh City of Charles Sturt |
1.5 km | 11% | 0% |
| Mile End | 1.6 km | 0% | 0% |
| Torrensville | 1.6 km | 3% | 0% |
| Brompton City of Charles Sturt |
1.6 km | 26% | 0% |
| North Adelaide City of Adelaide |
1.7 km | 5% | 0% |
| Ovingham City of Charles Sturt |
1.8 km | 75% | 0% |
| Welland City of Charles Sturt |
1.9 km | 25% | 0% |