Erica flood map & planning overlays

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

Flood mapping covers Erica and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 6%). Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.

Around 100% of Erica is mapped as bushfire-prone, compared with a Baw Baw average of 100%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.

The dominant planning zone in Erica is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Rural Activity Zone (RAZ) and Farming Zone (FZ). Zoning sets what you can build and do on a site, and can differ lot by lot.

Erica has 5 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 216 surveyed parcels in Erica, the median lot size is about 2,683 m². There are also 28 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.

At the 2021 Census Erica had 184 usual residents, with a median age of 54 and an average household size of 1.9 people. The wider Mount Baw Baw Region statistical area, which contains Erica, went from 5,736 people in 2001 to 6,750 in 2025, up 18%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Erica alone.

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Erica scores 941 and sits in decile 3 of 10 nationally and decile 2 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 Erica was $1,260 a week at the 2021 Census, against $1,614 for the typical suburb in Baw Baw. Median rent was $203 a week and the median mortgage repayment $1,040 a month. These are 2021 Census figures and have not been indexed to today.

An Erica 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.