Seacliff Park flood map & planning overlays
A planning-constraint profile of Seacliff Park
(City of Marion, SA) - 2.23 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
2.23 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Seacliff Park'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 Seacliff Park
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
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Seacliff Park at a glance
How Seacliff Park is zoned
Selling in Seacliff Park? 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 2.23 km², Seacliff Park is moderately constrained by planning overlays. About 16% of the suburb sits within a mapped flood overlay. There are 2 heritage-listed sites on record, and the dominant land-use zone is Hills Face. The median lot measures about 567 m² across 1,350 parcels.
Who lives in Seacliff Park
Census 2021 figures published by the ABS for the Seacliff Park 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 1035, and decile 9 within South Australia. The national average is 1000.
Age profile
Share of Seacliff Park's 2,644 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Marino - Seaview Downs, the wider ABS statistical area containing Seacliff Park. There is no annual population series published at suburb level, so this describes the surrounding area rather than Seacliff Park itself.
8,997 in 2001 to 10,209 in 2025, up 13%.
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.
Seacliff Park 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 Seacliff Park 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 46% of Seacliff Park. 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 Seacliff Park lot.
See what's in the $9 report →Seacliff Park planning - frequently asked
Is Seacliff Park flood-prone?
About 16% of Seacliff Park falls within a mapped flood overlay, against the council-wide suburb average of 14%.
Is Seacliff Park bushfire-prone?
Bushfire mapping covers Seacliff Park and little to none of it is mapped as bushfire-prone (the City of Marion average is 9%).
Is Seacliff Park under a flight path?
Aircraft were observed below 3,000 ft over about 46% of Seacliff Park, and over about 54% 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 1,000 ft, with an average of 3,000 ft. 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 Seacliff Park?
The dominant planning zone in Seacliff Park is Hills Face, though the suburb also includes Hills Neighbourhood and General Neighbourhood.
Does Seacliff Park have heritage-listed places?
Seacliff Park has 2 heritage-listed places on record.
What is the typical lot size in Seacliff Park?
Across 1,350 surveyed parcels in Seacliff Park, the median lot size is about 567 m².
Does Seacliff Park have a train station?
There is no train station inside Seacliff Park itself. The suburb is served by 16 bus stops.
What is the population of Seacliff Park?
At the 2021 Census Seacliff Park had 2,644 usual residents, with a median age of 41 and an average household size of 2.4 people. The wider Marino - Seaview Downs statistical area, which contains Seacliff Park, went from 8,997 people in 2001 to 10,209 in 2025, up 13%.
Is Seacliff Park an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Seacliff Park scores 1035 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 Seacliff Park?
Median household income in Seacliff Park was $1,693 a week at the 2021 Census, against $1,579 for the typical suburb in City of Marion. Median rent was $370 a week and the median mortgage repayment $1,800 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Seaview Downs | 0.8 km | 11% | 0% |
| Seacliff City of Holdfast Bay |
1.1 km | 43% | 0% |
| Kingston Park City of Holdfast Bay |
1.2 km | 54% | 0% |
| Marino | 1.5 km | 14% | 0% |
| Seacombe Heights | 1.8 km | 15% | 2% |
| South Brighton City of Holdfast Bay |
1.9 km | 57% | 0% |
| Dover Gardens | 2.1 km | 58% | 0% |
| O'Halloran Hill | 2.7 km | 0% | 44% |
| Seacombe Gardens | 2.7 km | 50% | 0% |
| Darlington | 2.7 km | 14% | 84% |