Keysborough flood map & planning overlays

The schematic on this page is a Keysborough flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 7% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Keysborough address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.

About 7% of Keysborough falls within a mapped flood overlay, against the council-wide suburb average of 8%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.

Around 29% of Keysborough is mapped as bushfire-prone, compared with a Greater Dandenong average of 19%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.

The dominant planning zone in Keysborough is Green Wedge A Zone (GWAZ1), though the suburb also includes General Residential Zone (GRZ2) and Neighbourhood Residential Zone (NRZ1). Zoning sets what you can build and do on a site, and can differ lot by lot.

Keysborough has 10 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.

Across 13,182 surveyed parcels in Keysborough, the median lot size is about 533 m². There are also 5,652 registered easements mapped in the suburb - an easement can restrict where you can build, so always check the title and overlays for the specific lot.

There is no train station inside Keysborough itself. The suburb is served by 123 bus stops.

At the 2021 Census Keysborough had 30,018 usual residents, with a median age of 36 and an average household size of 3.2 people. The wider Keysborough - South statistical area, which contains Keysborough, went from 698 people in 2001 to 17,117 in 2025, up 2352%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Keysborough alone.

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Keysborough scores 999 and sits in decile 6 of 10 nationally and decile 5 within Victoria - decile 1 being the most disadvantaged tenth of Australian suburbs and decile 10 the least. The national average score is 1000. SEIFA summarises income, education, occupation and housing across the whole suburb, so it describes the area, not any particular household in it.

Median household income in Keysborough was $1,991 a week at the 2021 Census, against $1,419 for the typical suburb in Greater Dandenong. Median rent was $421 a week and the median mortgage repayment $2,167 a month. These are 2021 Census figures and have not been indexed to today.

A Keysborough planning report pulls every overlay - zoning, flood, bushfire, heritage, environmental and noise - that touches a single lot, on live council and state data. The interactive map preview is free; the full PDF report is $9.