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Residents and property owners in Brimbank and Hobsons Bay will soon be able to search their own property to see what stormwater flood risk looks like and provide feedback on the draft flood maps.
The draft flood maps don’t create new risks – they provide clear stormwater flood information for communities, emergency services, and authorities in the two local government areas to plan and prepare for floods.
Melbourne Water is releasing draft maps from mid-July 2026 showing flood information.
The draft maps provide stormwater flood information for current conditions and future climate scenarios to the year 2100.
The draft maps are built on best-practice modelling that reflects how the areas have grown and how climate change will impact properties.
“These updated flood maps give community members clearer information so they can make informed decisions about their property and safety. We’re also continuing to invest in the infrastructure to reduce flood impacts across Melbourne over time, and having accurate, up-to-date mapping is a critical part of that work,” said Chris Brace, Melbourne Water Executive General Manager, Service Futures.
Melbourne Water will hold community engagement sessions in Brimbank and Hobsons Bay in the weeks following the map release, giving community members the chance to ask questions, understand what the maps mean for their property, and share local knowledge that might support refinements to the final maps. Details of session dates and locations will be announced closer to the release date.
These draft maps cover stormwater flooding. Riverine flood models for major waterways and coastal inundation running through Brimbank and Hobsons Bay are being updated separately, and will be released in the future.
The Brimbank and Hobsons Bay flood maps are part of the Greater Melbourne Flood Information Program, which will eventually cover 38 council areas. The program has already released updated stormwater flood maps for Banyule, Moonee Valley, Darebin, Yarra, Glen Eira and Merri-bek.
These draft maps will not change any planning controls. Any future changes to planning controls will involve a separate formal process, including public exhibition and independent review, in which residents can have their say.
The draft maps will be available from mid-July 2026 via links below. Community members can also register for community engagement sessions at the same addresses.
