Waterfall Gully flood map & planning overlays
A planning-constraint profile of Waterfall Gully
(City of Burnside, SA) - 1.79 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
1.79 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Waterfall Gully'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 Waterfall Gully
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 8,500 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.
Waterfall Gully at a glance
How Waterfall Gully is zoned
Selling in Waterfall Gully? 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 1.79 km², Waterfall Gully is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 6 heritage-listed sites on record, and the dominant land-use zone is Hills Face. The median lot measures about 2,084 m² across 73 parcels.
Who lives in Waterfall Gully
Census 2021 figures published by the ABS for the Waterfall Gully 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 1141, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Waterfall Gully's 161 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Beaumont - Glen Osmond, the wider ABS statistical area containing Waterfall Gully. There is no annual population series published at suburb level, so this describes the surrounding area rather than Waterfall Gully itself.
9,021 in 2001 to 10,664 in 2025, up 18%.
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.
Waterfall Gully 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 Waterfall Gully 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 26% of Waterfall Gully. 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 Waterfall Gully lot.
See what's in the $9 report →Waterfall Gully planning - frequently asked
Is Waterfall Gully flood-prone?
Flood mapping covers Waterfall Gully and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 4%).
Is Waterfall Gully bushfire-prone?
Around 100% of Waterfall Gully is mapped as bushfire-prone, compared with a City of Burnside average of 30%.
Is Waterfall Gully under a flight path?
Aircraft were observed below 3,000 ft over about 26% of Waterfall Gully, and over about 99% 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 4,500 ft. At the busiest point in the suburb about 10 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 Waterfall Gully?
The dominant planning zone in Waterfall Gully is Hills Face, though the suburb also includes Conservation and Hills Neighbourhood.
Does Waterfall Gully have heritage-listed places?
Waterfall Gully has 6 heritage-listed places on record.
What is the typical lot size in Waterfall Gully?
Across 73 surveyed parcels in Waterfall Gully, the median lot size is about 2,084 m².
What is the population of Waterfall Gully?
At the 2021 Census Waterfall Gully had 161 usual residents, with a median age of 40 and an average household size of 3.4 people. The wider Beaumont - Glen Osmond statistical area, which contains Waterfall Gully, went from 9,021 people in 2001 to 10,664 in 2025, up 18%.
Is Waterfall Gully an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Waterfall Gully scores 1141 and sits in decile 10 of 10 nationally and decile 10 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Waterfall Gully?
Median household income in Waterfall Gully was $3,600 a week at the 2021 Census, against $2,292 for the typical suburb in City of Burnside. Median rent was $468 a week and the median mortgage repayment $3,250 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Leawood Gardens City of Mitcham |
1.2 km | 0% | 100% |
| Mount Osmond | 1.4 km | 0% | 100% |
| Beaumont | 1.9 km | 1% | 73% |
| Greenhill Adelaide Hills Council |
2.0 km | 0% | 100% |
| Glen Osmond | 2.3 km | 0% | 70% |
| Burnside | 2.4 km | 12% | 45% |
| Cleland Adelaide Hills Council |
2.5 km | 0% | 100% |
| St Georges | 2.6 km | 0% | 4% |
| Hazelwood Park | 3.0 km | 20% | 0% |
| Stonyfell | 3.1 km | 3% | 83% |