Dernancourt flood map & planning overlays
A planning-constraint profile of Dernancourt
(City of Tea Tree Gully, SA) - 2.03 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
2.03 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Dernancourt'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 Dernancourt
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 5 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.
Dernancourt at a glance
How Dernancourt is zoned
Selling in Dernancourt? 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 2.03 km², Dernancourt is moderately constrained by planning overlays. About 12% of the suburb sits within a mapped flood overlay. There are 5 heritage-listed sites on record, and the dominant land-use zone is General Neighbourhood. The median lot measures about 643 m² across 1,871 parcels.
Who lives in Dernancourt
Census 2021 figures published by the ABS for the Dernancourt 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 1038, and decile 9 within South Australia. The national average is 1000.
Age profile
Share of Dernancourt's 4,063 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Highbury - Dernancourt, the wider ABS statistical area containing Dernancourt. There is no annual population series published at suburb level, so this describes the surrounding area rather than Dernancourt itself.
10,690 in 2001 to 11,781 in 2025, up 10%.
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.
Dernancourt 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 Dernancourt 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 7% of Dernancourt. 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 Dernancourt lot.
See what's in the $9 report →Dernancourt planning - frequently asked
Is Dernancourt flood-prone?
About 12% of Dernancourt falls within a mapped flood overlay, against the council-wide suburb average of 16%.
Is Dernancourt bushfire-prone?
Bushfire mapping covers Dernancourt and little to none of it is mapped as bushfire-prone (the City of Tea Tree Gully average is 36%).
Is Dernancourt under a flight path?
Aircraft were observed below 3,000 ft over about 7% of Dernancourt, and over about 57% 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 1,500 ft, with an average of 3,000 ft. At the busiest point in the suburb about 46 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 Dernancourt?
The dominant planning zone in Dernancourt is General Neighbourhood, though the suburb also includes Open Space and Suburban Activity Centre.
Does Dernancourt have heritage-listed places?
Dernancourt has 5 heritage-listed places on record.
What is the typical lot size in Dernancourt?
Across 1,871 surveyed parcels in Dernancourt, the median lot size is about 643 m².
Does Dernancourt have a train station?
There is no train station inside Dernancourt itself. The suburb is served by 20 bus stops.
What is the population of Dernancourt?
At the 2021 Census Dernancourt had 4,063 usual residents, with a median age of 43 and an average household size of 2.6 people. The wider Highbury - Dernancourt statistical area, which contains Dernancourt, went from 10,690 people in 2001 to 11,781 in 2025, up 10%.
Is Dernancourt an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Dernancourt scores 1038 and sits in decile 8 of 10 nationally and decile 9 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Dernancourt?
Median household income in Dernancourt was $1,736 a week at the 2021 Census, against $1,703 for the typical suburb in City of Tea Tree Gully. Median rent was $380 a week and the median mortgage repayment $1,733 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Paradise Campbelltown City Council |
0.8 km | 5% | <1% |
| Holden Hill | 1.3 km | <1% | 0% |
| Gilles Plains City of Port Adelaide Enfield |
2.0 km | 4% | 0% |
| Newton Campbelltown City Council |
2.3 km | 0% | 0% |
| Campbelltown Campbelltown City Council |
2.5 km | 3% | 0% |
| Windsor Gardens City of Port Adelaide Enfield |
2.5 km | 4% | 0% |
| Hope Valley | 2.6 km | 11% | 4% |
| Valley View City of Port Adelaide Enfield |
2.8 km | 7% | 0% |
| Athelstone Campbelltown City Council |
3.0 km | 4% | 67% |
| Modbury | 3.1 km | 25% | 0% |