Blackheath zoning & planning overlays
A planning-constraint profile of Blackheath (Blue Mountains, NSW) - 45.54 km², mapped from live council and state overlay data. This suburb is highly constrained on the overlays we hold - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
45.54 km² - this suburb is highly constrained on the overlays we hold - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Elevation hillshade with street names, clipped to Blackheath's boundary, with the bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address. No flood layer is drawn because we hold no flood mapping for this area.
Blackheath at a glance
How Blackheath is zoned
Buying in Blackheath? 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 45.54 km², Blackheath is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 94% is flagged bushfire-prone. There are 160 heritage-listed sites on record, and the dominant land-use zone is Environmental Conservation. The median lot measures about 766 m² across 4,676 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 Blackheath
Census 2021 figures published by the ABS for the Blackheath 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 1011, and decile 6 within New South Wales. The national average is 1000.
Age profile
Share of Blackheath's 4,672 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Blackheath - Megalong Valley, the wider ABS statistical area containing Blackheath. There is no annual population series published at suburb level, so this describes the surrounding area rather than Blackheath itself.
5,285 in 2001 to 5,872 in 2025, up 11%.
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.
Blackheath 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 | Not 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 Blackheath 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 →Blackheath planning - frequently asked
Is Blackheath flood-prone?
We don't yet hold flood mapping covering Blackheath, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Blue Mountains is the authority to check for flood mapping in this area. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Blackheath bushfire-prone?
Yes - around 94% of Blackheath is mapped as bushfire-prone, compared with a Blue Mountains average of 96%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Blackheath?
The dominant planning zone in Blackheath is Environmental Conservation, though the suburb also includes National Parks and Nature Reserves and Environmental Living. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Blackheath have heritage-listed places?
Blackheath has 160 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 Blackheath?
Across 4,676 surveyed parcels in Blackheath, the median lot size is about 766 m². There are also 6 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 Blackheath have a train station?
Yes - Blackheath has 1 train station: Blackheath Station. It is also served by 159 bus stops.
What is the population of Blackheath?
At the 2021 Census Blackheath had 4,672 usual residents, with a median age of 53 and an average household size of 2.0 people. The wider Blackheath - Megalong Valley statistical area, which contains Blackheath, went from 5,285 people in 2001 to 5,872 in 2025, up 11%. ABS publishes no annual population series for individual suburbs, so that trend describes the surrounding area rather than Blackheath alone.
Is Blackheath an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Blackheath scores 1011 and sits in decile 7 of 10 nationally and decile 6 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 Blackheath?
Median household income in Blackheath was $1,332 a week at the 2021 Census, against $2,083 for the typical suburb in Blue Mountains. Median rent was $380 a week and the median mortgage repayment $1,733 a month. These are 2021 Census figures and have not been indexed to today.
Do I need a planning report for a Blackheath property?
A Blackheath 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 |
|---|---|---|---|
| Medlow Bath | 4.5 km | Not mapped | 99% |
| Burramoko | 4.6 km | Not mapped | 100% |
| Govetts | 5.6 km | Not mapped | 100% |
| Mount Victoria | 7.0 km | Not mapped | 99% |
| Kanimbla Lithgow City |
7.6 km | Not mapped | 100% |
| Katoomba | 8.1 km | Not mapped | 83% |
| Birrabang | 8.4 km | Not mapped | 100% |
| Leura | 9.3 km | Not mapped | 82% |
| Rocklily Ridge | 10.2 km | Not mapped | 100% |
| Little Hartley Lithgow City |
11.0 km | Not mapped | 83% |