Seven Hills flood map & planning overlays
A planning-constraint profile of Seven Hills (Blacktown, NSW) - 9.67 km², mapped from live council and state overlay data. This suburb is relatively unconstrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
9.67 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to Seven 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.
Seven Hills at a glance
How Seven Hills is zoned
Buying in Seven Hills? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.
Across its 9.67 km², Seven Hills is relatively unconstrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay. There are 13 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 590 m² across 6,969 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 Seven Hills
Census 2021 figures published by the ABS for the Seven 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 996, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of Seven Hills's 20,095 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lalor Park - Kings Langley, the wider ABS statistical area containing Seven Hills. There is no annual population series published at suburb level, so this describes the surrounding area rather than Seven Hills itself.
25,036 in 2001 to 25,958 in 2025, up 4%.
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.
Seven Hills data sources and coverage
Every figure below is an aggregate for the suburb boundary. “Not mapped” means LayeredGeo does not hold a source layer covering this suburb; it is never an all-clear for a particular property.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Bushfire-prone mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Zoning | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Heritage and environment | Mapped where published | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 5 August 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Seven 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 →Seven Hills planning - frequently asked
Where can I see a flood map of Seven Hills?
The schematic on this page is a Seven Hills flood map: the mapped flood overlays drawn over the suburb's terrain and street grid. Flood lines vary block to block, so for a specific property use the free interactive map - search any Seven Hills address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Seven Hills flood-prone?
Flood mapping covers Seven Hills and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 7%). Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Seven Hills bushfire-prone?
Bushfire mapping covers Seven Hills and little to none of it is mapped as bushfire-prone (the Blacktown average is 21%). Always confirm for the exact lot, as mapping can change.
What is the zoning in Seven Hills?
The dominant planning zone in Seven Hills is Low Density Residential, though the suburb also includes General Industrial and Infrastructure. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Seven Hills have heritage-listed places?
Seven Hills has 13 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.
What is the typical lot size in Seven Hills?
Across 6,969 surveyed parcels in Seven Hills, the median lot size is about 590 m². There are also 12 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 Seven Hills have a train station?
Yes - Seven Hills has 1 train station: Seven Hills Station. It is also served by 272 bus stops.
What is the population of Seven Hills?
At the 2021 Census Seven Hills had 20,095 usual residents, with a median age of 37 and an average household size of 2.8 people. The wider Lalor Park - Kings Langley statistical area, which contains Seven Hills, went from 25,036 people in 2001 to 25,958 in 2025, up 4%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Seven Hills alone.
Is Seven Hills an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Seven Hills scores 996 and sits in decile 6 of 10 nationally and decile 5 within New South Wales - 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 Seven Hills?
Median household income in Seven Hills was $1,892 a week at the 2021 Census, against $2,117 for the typical suburb in Blacktown. Median rent was $400 a week and the median mortgage repayment $2,200 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Seven Hills property?
A Seven 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.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lalor Park | 1.9 km | 0% | 0% |
| Toongabbie City Of Parramatta |
2.6 km | 0% | 0% |
| Girraween Cumberland |
2.6 km | 0% | 0% |
| Kings Langley | 3.0 km | 0% | 0% |
| Blacktown | 3.1 km | 0% | 3% |
| Old Toongabbie City Of Parramatta |
3.2 km | 0% | 2% |
| Pendle Hill Cumberland |
3.4 km | Not mapped | 0% |
| Constitution Hill City Of Parramatta |
4.1 km | 0% | 0% |
| Winston Hills City Of Parramatta |
4.2 km | 0% | 9% |
| Wentworthville Cumberland |
4.4 km | Not mapped | 0% |