Samsonvale flood map & planning overlays
A planning-constraint profile of Samsonvale (Moreton Bay City, QLD) - 33.83 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
33.83 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Samsonvale'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.
Samsonvale 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 232 Samsonvale properties.
Lot-level readout
Flood-risk rating across all 232 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Samsonvale.
Samsonvale at a glance
How Samsonvale is zoned
Selling in Samsonvale? 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 33.83 km², Samsonvale is highly constrained by planning overlays. About 40% of the suburb sits within a mapped flood overlay, and 82% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Community facilities. The terrain is hilly, and the median lot measures about 20,423 m² across 240 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 Samsonvale
Census 2021 figures published by the ABS for the Samsonvale 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 1114, and decile 10 within Queensland. The national average is 1000.
Age profile
Share of Samsonvale's 674 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Dayboro, the wider ABS statistical area containing Samsonvale. There is no annual population series published at suburb level, so this describes the surrounding area rather than Samsonvale itself.
5,554 in 2001 to 10,103 in 2025, up 82%.
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 Samsonvale 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 →Samsonvale planning - frequently asked
Where can I see a flood map of Samsonvale?
The schematic on this page is a Samsonvale flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 40% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Samsonvale address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Samsonvale flood-prone?
About 40% of Samsonvale falls within a mapped flood overlay, against a Moreton Bay City average of 37%. Looking lot by lot, 25% of the 232 properties we analysed in Samsonvale carry some level of mapped flood risk, including 49 rated high risk or historically affected. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Samsonvale bushfire-prone?
Yes - around 82% of Samsonvale is mapped as bushfire-prone, compared with a Moreton Bay City average of 59%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Samsonvale?
The dominant planning zone in Samsonvale is Community facilities, though the suburb also includes Rural and Recreation and open space. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Samsonvale have heritage-listed places?
Samsonvale has 4 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 Samsonvale hilly or flat?
Samsonvale is hilly: the median lot slope is about 16%, and 55% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 51 m to 192 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 Samsonvale?
Across 240 surveyed parcels in Samsonvale, the median lot size is about 20,423 m². There are also 52 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.
What is the population of Samsonvale?
At the 2021 Census Samsonvale had 674 usual residents, with a median age of 40 and an average household size of 3.4 people. The wider Dayboro statistical area, which contains Samsonvale, went from 5,554 people in 2001 to 10,103 in 2025, up 82%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Samsonvale alone.
Is Samsonvale an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Samsonvale scores 1114 and sits in decile 10 of 10 nationally and decile 10 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 Samsonvale?
Median household income in Samsonvale was $3,250 a week at the 2021 Census, against $1,827 for the typical suburb in Moreton Bay City. Median rent was $575 a week and the median mortgage repayment $2,500 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Samsonvale property?
A Samsonvale 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.