Silverdale flood map & planning overlays
A planning-constraint profile of Silverdale (Scenic Rim Regional, QLD) - 38.83 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
38.83 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Silverdale'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.
Silverdale 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 80 Silverdale properties.
Lot-level readout
Flood-risk rating across all 80 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Silverdale.
Silverdale at a glance
How Silverdale is zoned
Selling in Silverdale? 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 38.83 km², Silverdale is highly constrained by planning overlays. About 31% of the suburb sits within a mapped flood overlay, and 32% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 324,618 m² across 85 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 Silverdale
Census 2021 figures published by the ABS for the Silverdale 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 992, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Silverdale's 112 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Boonah, the wider ABS statistical area containing Silverdale. There is no annual population series published at suburb level, so this describes the surrounding area rather than Silverdale itself.
9,556 in 2001 to 13,450 in 2025, up 41%.
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 Silverdale 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 →Silverdale planning - frequently asked
Where can I see a flood map of Silverdale?
The schematic on this page is a Silverdale flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 31% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Silverdale address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Silverdale flood-prone?
About 31% of Silverdale falls within a mapped flood overlay, against a Scenic Rim Regional average of 19%. Looking lot by lot, 39% of the 80 properties we analysed in Silverdale carry some level of mapped flood risk, including 31 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 Silverdale bushfire-prone?
Yes - around 32% of Silverdale is mapped as bushfire-prone, compared with a Scenic Rim Regional average of 52%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Silverdale?
The dominant planning zone in Silverdale is Rural, though the suburb also includes Community Facilities. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Silverdale have heritage-listed places?
No heritage-listed places are on record within Silverdale. Even so, it is worth confirming for an individual property before any works.
Is Silverdale hilly or flat?
Silverdale is gently undulating: the median lot slope is about 4%, and 1% of properties sit on slopes of 15% or steeper. Ground level runs from roughly 62 m to 144 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 Silverdale?
Across 85 surveyed parcels in Silverdale, the median lot size is about 324,618 m². There are also 5 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 Silverdale?
At the 2021 Census Silverdale had 112 usual residents, with a median age of 37 and an average household size of 3.2 people. The wider Boonah statistical area, which contains Silverdale, went from 9,556 people in 2001 to 13,450 in 2025, up 41%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Silverdale alone.
Is Silverdale an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Silverdale scores 992 and sits in decile 6 of 10 nationally and decile 7 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 Silverdale?
Median household income in Silverdale was $1,981 a week at the 2021 Census, against $1,562 for the typical suburb in Scenic Rim Regional. Median rent was $392 a week and the median mortgage repayment $1,442 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Silverdale property?
A Silverdale 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.