Maslin Beach flood map & planning overlays
A planning-constraint profile of Maslin Beach
(City of Onkaparinga, SA) - 6.62 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
6.62 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Maslin Beach'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 Maslin Beach
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 1 a day
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.
Maslin Beach at a glance
How Maslin Beach is zoned
Selling in Maslin Beach? 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 6.62 km², Maslin Beach is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 98% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Resource Extraction. The median lot measures about 698 m² across 752 parcels.
Who lives in Maslin Beach
Census 2021 figures published by the ABS for the Maslin Beach 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 954, and decile 4 within South Australia. The national average is 1000.
Age profile
Share of Maslin Beach's 1,213 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Seaford Rise - Moana, the wider ABS statistical area containing Maslin Beach. There is no annual population series published at suburb level, so this describes the surrounding area rather than Maslin Beach itself.
7,371 in 2001 to 11,600 in 2025, up 57%.
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.
Maslin Beach 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 Maslin Beach 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 51% of Maslin Beach. 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 Maslin Beach lot.
See what's in the $9 report →Maslin Beach planning - frequently asked
Is Maslin Beach flood-prone?
Flood mapping covers Maslin Beach and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 4%).
Is Maslin Beach bushfire-prone?
Around 98% of Maslin Beach is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%.
Is Maslin Beach under a flight path?
Aircraft were observed below 3,000 ft over about 51% of Maslin Beach, and over about 66% 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 1,500 ft. At the busiest point in the suburb about 1 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 Maslin Beach?
The dominant planning zone in Maslin Beach is Resource Extraction, though the suburb also includes Open Space and Rural.
Does Maslin Beach have heritage-listed places?
Maslin Beach has 5 heritage-listed places on record.
What is the typical lot size in Maslin Beach?
Across 752 surveyed parcels in Maslin Beach, the median lot size is about 698 m².
Does Maslin Beach have a train station?
There is no train station inside Maslin Beach itself. The suburb is served by 12 bus stops.
What is the population of Maslin Beach?
At the 2021 Census Maslin Beach had 1,213 usual residents, with a median age of 46 and an average household size of 2.4 people. The wider Seaford Rise - Moana statistical area, which contains Maslin Beach, went from 7,371 people in 2001 to 11,600 in 2025, up 57%.
Is Maslin Beach an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Maslin Beach scores 954 and sits in decile 4 of 10 nationally and decile 4 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Maslin Beach?
Median household income in Maslin Beach was $1,380 a week at the 2021 Census, against $1,512 for the typical suburb in City of Onkaparinga. Median rent was $335 a week and the median mortgage repayment $1,320 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Tatachilla | 2.7 km | 0% | 100% |
| Moana | 2.9 km | 11% | 92% |
| Seaford Rise | 3.1 km | 3% | 51% |
| Port Willunga | 3.2 km | 7% | 90% |
| Seaford Heights | 4.1 km | 0% | 67% |
| Aldinga | 4.4 km | 1% | 99% |
| Whites Valley | 5.2 km | 0% | 100% |
| Seaford | 5.2 km | 0% | 35% |
| Mclaren Vale | 5.6 km | 2% | 100% |
| Old Noarlunga | 6.0 km | 13% | 96% |