Ten Mile Hollow flood map & planning overlays
A planning-constraint profile of Ten Mile Hollow (Hawkesbury, NSW) - 4.59 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
4.59 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Ten Mile Hollow'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.
Ten Mile Hollow at a glance
How Ten Mile Hollow is zoned
Buying in Ten Mile Hollow? 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 4.59 km², Ten Mile Hollow is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 819,178 m² across 7 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 Ten Mile Hollow
Census 2021 figures published by the ABS for the Ten Mile Hollow 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 1010, and decile 6 within New South Wales. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Bilpin - Colo - St Albans, the wider ABS statistical area containing Ten Mile Hollow. There is no annual population series published at suburb level, so this describes the surrounding area rather than Ten Mile Hollow itself.
2,518 in 2001 to 2,781 in 2025, up 10%.
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.
Ten Mile Hollow 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 Ten Mile Hollow 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 →Ten Mile Hollow planning - frequently asked
Where can I see a flood map of Ten Mile Hollow?
The schematic on this page is a Ten Mile Hollow 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 Ten Mile Hollow address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Ten Mile Hollow flood-prone?
Flood mapping covers Ten Mile Hollow and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%). Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Ten Mile Hollow bushfire-prone?
Yes - around 100% of Ten Mile Hollow is mapped as bushfire-prone, compared with a Hawkesbury average of 84%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Ten Mile Hollow?
The dominant planning zone in Ten Mile Hollow is National Parks and Nature Reserves, though the suburb also includes Environmental Living. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Ten Mile Hollow have heritage-listed places?
Ten Mile Hollow 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.
What is the typical lot size in Ten Mile Hollow?
Across 7 surveyed parcels in Ten Mile Hollow, the median lot size is about 819,178 m².
Is Ten Mile Hollow an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Ten Mile Hollow scores 1010 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.
Do I need a planning report for a Ten Mile Hollow property?
A Ten Mile Hollow 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 |
|---|---|---|---|
| Wrights Creek | 4.5 km | 0% | 100% |
| Upper Mangrove Central Coast |
4.7 km | 0% | 100% |
| Mangrove Creek Central Coast |
5.5 km | 0% | 100% |
| Mangrove Mountain Central Coast |
9.0 km | Not mapped | 92% |
| Gunderman Central Coast |
9.1 km | <1% | 96% |
| Greengrove Central Coast |
9.4 km | Not mapped | 96% |
| St Albans | 9.8 km | 0% | 100% |
| Lower Mangrove Central Coast |
10.1 km | Not mapped | 93% |
| Central Macdonald | 10.8 km | 0% | 100% |
| Lower Macdonald | 11.7 km | 0% | 99% |