Mount Gravatt flood map & planning overlays
A planning-constraint profile of Mount Gravatt (Brisbane City, QLD) - 2.98 km², mapped from live council and state overlay data. This suburb is highly constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
2.98 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Gravatt's boundary, with the flood, bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address.
Mount Gravatt flood risk at the property level
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched, from our lot-by-lot analysis of 2,057 Mount Gravatt properties.
Lot-level readout
Flood-risk rating across all 2,057 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Mount Gravatt.
Mount Gravatt at a glance
How Mount Gravatt is zoned
Selling in Mount Gravatt? The lot-level zone is the zoning Part 3 of Queensland's Form 2 seller disclosure statement asks for - see our Form 2 planning data guide.
Across its 2.98 km², Mount Gravatt is highly constrained by planning overlays. About 7% of the suburb sits within a mapped flood overlay, and 65% is flagged bushfire-prone. There are 6 heritage-listed sites on record, and the dominant land-use zone is Conservation (Metropolitan). The terrain is gently undulating, and the median lot measures about 607 m² across 1,481 parcels. These figures are suburb-wide - the overlays that actually apply to a given lot can differ block to block, which is what a property-level check tells you.
Who lives in Mount Gravatt
Census 2021 figures published by the ABS for the Mount Gravatt 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 1038, and decile 9 within Queensland. The national average is 1000.
Age profile
Share of Mount Gravatt's 3,733 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Mount Gravatt, the wider ABS statistical area containing Mount Gravatt. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Gravatt itself.
12,715 in 2001 to 17,149 in 2025, up 35%.
Source: Australian Bureau of Statistics. Census of Population and Housing 2021 (General Community Profile) and SEIFA 2021, both published at the Suburbs and Localities level; Regional Population (estimated resident population) at Statistical Area Level 2. Used under CC BY 4.0. Census counts of small populations are randomly adjusted by the ABS to protect confidentiality, so figures for small suburbs are indicative.
Check a specific Mount Gravatt 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.
See what's in the $9 report →Mount Gravatt planning - frequently asked
Where can I see a flood map of Mount Gravatt?
The schematic on this page is a Mount Gravatt 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 Mount Gravatt address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Mount Gravatt flood-prone?
About 7% of Mount Gravatt falls within a mapped flood overlay, against a Brisbane City average of 40%. Looking lot by lot, 0% of the 2,057 properties we analysed in Mount Gravatt carry some level of mapped flood risk. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Mount Gravatt bushfire-prone?
Yes - around 65% of Mount Gravatt is mapped as bushfire-prone, compared with a Brisbane City average of 27%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Mount Gravatt?
The dominant planning zone in Mount Gravatt is Conservation (Metropolitan), though the suburb also includes Low density residential and Specialised centre (Major education and research facility). Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Mount Gravatt have heritage-listed places?
Mount Gravatt has 6 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.
Is Mount Gravatt hilly or flat?
Mount Gravatt is gently undulating: the median lot slope is about 10%, and 15% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 43 m to 96 m AHD across the suburb. Slope drives site costs - cut and fill, retaining walls and driveway grades - so it is worth knowing before you commit to a sloping block.
What is the typical lot size in Mount Gravatt?
Across 1,481 surveyed parcels in Mount Gravatt, the median lot size is about 607 m². There are also 202 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.
Does Mount Gravatt have a train station?
There is no train station inside Mount Gravatt itself. The suburb is served by 25 bus stops.
What is the population of Mount Gravatt?
At the 2021 Census Mount Gravatt had 3,733 usual residents, with a median age of 36 and an average household size of 2.3 people. The wider Mount Gravatt statistical area, which contains Mount Gravatt, went from 12,715 people in 2001 to 17,149 in 2025, up 35%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Mount Gravatt alone.
Is Mount Gravatt an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Gravatt scores 1038 and sits in decile 8 of 10 nationally and decile 9 within Queensland - 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.
What is the median household income in Mount Gravatt?
Median household income in Mount Gravatt was $1,875 a week at the 2021 Census, against $2,122 for the typical suburb in Brisbane City. Median rent was $380 a week and the median mortgage repayment $2,001 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Mount Gravatt property?
A Mount Gravatt planning report pulls every overlay - zoning, flood, bushfire, heritage and environmental - that touches a single lot, on live council and state data. The interactive map preview is free; a full PDF report is $9.