Gepps Cross flood map & planning overlays
A planning-constraint profile of Gepps Cross
(City of Port Adelaide Enfield, SA) - 3.62 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
3.62 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Gepps Cross'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 Gepps Cross
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 3 Oct 2026
typical observed square 2 a day
Night movements: observed, lowest 1,500 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.
Gepps Cross at a glance
How Gepps Cross is zoned
Selling in Gepps Cross? 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 3.62 km², Gepps Cross is moderately constrained by planning overlays. About 27% of the suburb sits within a mapped flood overlay. There is 1 heritage-listed site on record, and the dominant land-use zone is Open Space. The median lot measures about 711 m² across 466 parcels.
Who lives in Gepps Cross
Census 2021 figures published by the ABS for the Gepps Cross 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 907, and decile 2 within South Australia. The national average is 1000.
Age profile
Share of Gepps Cross's 648 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Enfield - Blair Athol, the wider ABS statistical area containing Gepps Cross. There is no annual population series published at suburb level, so this describes the surrounding area rather than Gepps Cross itself.
19,604 in 2001 to 28,231 in 2025, up 44%.
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.
Gepps Cross 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 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 Gepps Cross 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 22% of Gepps Cross. 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 Gepps Cross lot.
See what's in the $9 report →Gepps Cross planning - frequently asked
Is Gepps Cross flood-prone?
About 27% of Gepps Cross falls within a mapped flood overlay, against the council-wide suburb average of 17%.
Is Gepps Cross bushfire-prone?
Bushfire mapping covers Gepps Cross and little to none of it is mapped as bushfire-prone.
Is Gepps Cross under a flight path?
Aircraft were observed below 3,000 ft over about 22% of Gepps Cross, and over about 46% 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 4,000 ft. At the busiest point in the suburb about 3 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 Gepps Cross?
The dominant planning zone in Gepps Cross is Open Space, though the suburb also includes Strategic Employment and Employment.
Does Gepps Cross have heritage-listed places?
Gepps Cross has 1 heritage-listed place on record.
What is the typical lot size in Gepps Cross?
Across 466 surveyed parcels in Gepps Cross, the median lot size is about 711 m². There are also 18 registered easements mapped in the suburb.
Does Gepps Cross have a train station?
There is no train station inside Gepps Cross itself. The suburb is served by 31 bus stops.
What is the population of Gepps Cross?
At the 2021 Census Gepps Cross had 648 usual residents, with a median age of 41 and an average household size of 2.7 people. The wider Enfield - Blair Athol statistical area, which contains Gepps Cross, went from 19,604 people in 2001 to 28,231 in 2025, up 44%.
Is Gepps Cross an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Gepps Cross scores 907 and sits in decile 2 of 10 nationally and decile 2 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Gepps Cross?
Median household income in Gepps Cross was $1,375 a week at the 2021 Census, against $1,459 for the typical suburb in City of Port Adelaide Enfield. Median rent was $321 a week and the median mortgage repayment $1,520 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Northfield | 1.6 km | 4% | 0% |
| Clearview | 2.0 km | 10% | 0% |
| Cavan City of Salisbury |
2.0 km | 0% | 0% |
| Enfield | 2.2 km | 14% | 0% |
| Blair Athol | 2.2 km | 17% | 0% |
| Northgate | 2.6 km | 3% | 0% |
| Walkley Heights City of Salisbury |
2.7 km | 6% | 0% |
| Pooraka City of Salisbury |
2.7 km | 23% | 0% |
| Kilburn | 2.9 km | 13% | 0% |
| Lightsview | 3.0 km | 10% | 0% |