Singletons Mill flood map & planning overlays
A planning-constraint profile of Singletons Mill (Hornsby, NSW) - 6.11 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
6.11 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Singletons Mill'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.
Singletons Mill at a glance
How Singletons Mill is zoned
Buying in Singletons Mill? 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 6.11 km², Singletons Mill is highly constrained by planning overlays. About 20% of the suburb sits within a mapped flood overlay, and 89% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 169,852 m² across 17 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 Singletons Mill
Census 2021 figures published by the ABS for the Singletons Mill suburb boundary itself, not a wider region.
Population trend, 2001 to 2025
Estimated resident population of Galston - Laughtondale, the wider ABS statistical area containing Singletons Mill. There is no annual population series published at suburb level, so this describes the surrounding area rather than Singletons Mill itself.
5,182 in 2001 to 5,472 in 2025, up 6%.
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.
Singletons Mill 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 Singletons Mill 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 →Singletons Mill planning - frequently asked
Where can I see a flood map of Singletons Mill?
The schematic on this page is a Singletons Mill flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 20% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Singletons Mill address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Singletons Mill flood-prone?
About 20% of Singletons Mill falls within a mapped flood overlay, against the council-wide suburb average of 2%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Singletons Mill bushfire-prone?
Yes - around 89% of Singletons Mill is mapped as bushfire-prone, compared with a Hornsby average of 69%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Singletons Mill?
The dominant planning zone in Singletons Mill is National Parks and Nature Reserves, though the suburb also includes Environmental Management and Natural Waterways. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Singletons Mill have heritage-listed places?
Singletons Mill has 9 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 Singletons Mill?
Across 17 surveyed parcels in Singletons Mill, the median lot size is about 169,852 m².
Do I need a planning report for a Singletons Mill property?
A Singletons Mill 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 |
|---|---|---|---|
| Canoelands | 4.0 km | 4% | 93% |
| Spencer Central Coast |
5.2 km | 0% | 87% |
| Laughtondale | 5.5 km | 18% | 88% |
| Wendoree Park Central Coast |
7.6 km | 0% | 80% |
| Gunderman Central Coast |
7.9 km | <1% | 96% |
| Marlow Central Coast |
8.1 km | 0% | 83% |
| Lower Mangrove Central Coast |
8.7 km | Not mapped | 93% |
| Bar Point Central Coast |
9.6 km | 0% | 74% |
| Maroota The Hills Shire |
10.2 km | 0% | 93% |
| Forest Glen | 10.3 km | 0% | 97% |