Willawong flood map & planning overlays

About 65% of Willawong falls within a mapped flood overlay, against the council-wide suburb average of 31%. Across the suburb, 56% of the 489 properties we analysed carry some level of mapped flood risk, including 116 rated high risk or historically affected. Modelled flood depth, velocity and flood level are held for about 490 Willawong addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.

Yes. Recorded flood mapping reaches into Willawong: 164 of the 489 properties we analysed (33.5%) sit at least partly inside a mapped historical flood extent (Historic Flood 1974: 156, February 2022: 92, January 2011: 80). The free address check says whether a given lot is inside one.

Around 35% of Willawong is mapped as bushfire-prone, compared with a Brisbane City average of 27%.

About 3% of Willawong sits inside a published aircraft noise contour, and the highest contour present is ANEF 25 - under AS 2021, land above ANEF 25 is generally considered unacceptable for new houses, and 20-25 conditionally acceptable with noise attenuation. ANEF contours are forecasts published per airport and used to control noise-sensitive development; they are not a measurement at any one house, and a property can sit under a flight path and outside every contour.

Aircraft were observed below 3,000 ft over about 100% of Willawong, in the period sampled (4 Sep 2026 to 7 Nov 2026). The lowest measured aircraft was at 500 ft, with an average of 1,500 ft. At the busiest point in the suburb about 191 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.

The dominant planning zone in Willawong is Special purpose (Utility services), though the suburb also includes General industry B and Rural.

No heritage-listed places are on record within Willawong.

Willawong is gently undulating: the median ground slope is about 5%, and 5% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 6 m to 43 m AHD across the suburb.

Across 464 surveyed parcels in Willawong, the median lot size is about 736 m². There are also 174 registered easements mapped in the suburb.

There is no train station inside Willawong itself. The suburb is served by 5 bus stops.

At the 2021 Census Willawong had 145 usual residents, with a median age of 49 and an average household size of 2.3 people. The wider Pallara - Willawong statistical area, which contains Willawong, went from 1,023 people in 2001 to 16,586 in 2025, up 1521%.

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Willawong scores 1003 and sits in decile 6 of 10 nationally and decile 8 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).

Median household income in Willawong was $2,031 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $328 a week and the median mortgage repayment $1,734 a month.