Alexandra Hills flood map & planning overlays
A planning-constraint profile of Alexandra Hills (Redland City, QLD) - 13.66 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
13.66 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Alexandra Hills'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.
Alexandra Hills 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 6,584 Alexandra Hills properties.
Lot-level readout
Flood-risk rating across all 6,584 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Alexandra Hills.
Alexandra Hills at a glance
How Alexandra Hills is zoned
Selling in Alexandra Hills? 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 13.66 km², Alexandra Hills is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 50% is flagged bushfire-prone. The dominant land-use zone is Low Density Residential. The terrain is largely flat, and the median lot measures about 713 m² across 6,457 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 Alexandra Hills
Census 2021 figures published by the ABS for the Alexandra Hills 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 976, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Alexandra Hills's 16,472 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Alexandra Hills, the wider ABS statistical area containing Alexandra Hills. There is no annual population series published at suburb level, so this describes the surrounding area rather than Alexandra Hills itself.
17,650 in 2001 to 17,361 in 2025, down 2%.
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 Alexandra Hills 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 →Alexandra Hills planning - frequently asked
Where can I see a flood map of Alexandra Hills?
The schematic on this page is a Alexandra Hills flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 6% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Alexandra Hills address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Alexandra Hills flood-prone?
About 6% of Alexandra Hills falls within a mapped flood overlay, against a Redland City average of 22%. Looking lot by lot, 3% of the 6,584 properties we analysed in Alexandra Hills 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 Alexandra Hills bushfire-prone?
Yes - around 50% of Alexandra Hills is mapped as bushfire-prone, compared with a Redland City average of 41%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Alexandra Hills?
The dominant planning zone in Alexandra Hills is Low Density Residential, though the suburb also includes Conservation and Community Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Alexandra Hills have heritage-listed places?
No heritage-listed places are on record within Alexandra Hills. Even so, it is worth confirming for an individual property before any works.
Is Alexandra Hills hilly or flat?
Alexandra Hills is largely flat: the median lot slope is about 4%. Ground level runs from roughly 14 m to 53 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 Alexandra Hills?
Across 6,457 surveyed parcels in Alexandra Hills, the median lot size is about 713 m². There are also 261 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 Alexandra Hills have a train station?
There is no train station inside Alexandra Hills itself. The suburb is served by 115 bus stops.
What is the population of Alexandra Hills?
At the 2021 Census Alexandra Hills had 16,472 usual residents, with a median age of 38 and an average household size of 2.7 people. The wider Alexandra Hills statistical area, which contains Alexandra Hills, went from 17,650 people in 2001 to 17,361 in 2025, down 2%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Alexandra Hills alone.
Is Alexandra Hills an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Alexandra Hills scores 976 and sits in decile 5 of 10 nationally and decile 6 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 Alexandra Hills?
Median household income in Alexandra Hills was $1,829 a week at the 2021 Census, against $1,488 for the typical suburb in Redland City. Median rent was $400 a week and the median mortgage repayment $1,820 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Alexandra Hills property?
A Alexandra Hills 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.