Lucas Heights flood map & planning overlays
A planning-constraint profile of Lucas Heights (Sutherland Shire, NSW) - 9.6 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
9.6 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Lucas Heights'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.
Lucas Heights at a glance
How Lucas Heights is zoned
Buying in Lucas Heights? 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 9.6 km², Lucas Heights is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 85% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Special Activities. The median lot measures about 96,123 m² across 26 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 Lucas Heights
Census 2021 figures published by the ABS for the Lucas Heights suburb boundary itself, not a wider region.
Population trend, 2001 to 2025
Estimated resident population of Menai - Lucas Heights - Woronora, the wider ABS statistical area containing Lucas Heights. There is no annual population series published at suburb level, so this describes the surrounding area rather than Lucas Heights itself.
21,802 in 2001 to 20,917 in 2025, down 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.
Lucas Heights 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 Lucas Heights 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 →Lucas Heights planning - frequently asked
Where can I see a flood map of Lucas Heights?
The schematic on this page is a Lucas Heights 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 Lucas Heights address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Lucas Heights flood-prone?
Flood mapping covers Lucas Heights and none of the suburb falls within a mapped flood overlay. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Lucas Heights bushfire-prone?
Yes - around 85% of Lucas Heights is mapped as bushfire-prone, compared with a Sutherland Shire average of 46%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Lucas Heights?
The dominant planning zone in Lucas Heights is Special Activities, though the suburb also includes Environmental Conservation and Public Recreation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Lucas Heights have heritage-listed places?
Lucas Heights has 1 heritage-listed place 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 Lucas Heights?
Across 26 surveyed parcels in Lucas Heights, the median lot size is about 96,123 m². There are also 1 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.
Do I need a planning report for a Lucas Heights property?
A Lucas Heights 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 |
|---|---|---|---|
| Barden Ridge | 2.9 km | Not mapped | 70% |
| Engadine | 3.9 km | Not mapped | 64% |
| Menai | 4.6 km | 0% | 83% |
| Woronora Heights | 5.2 km | Not mapped | 86% |
| Holsworthy Campbelltown |
5.3 km | 0% | 98% |
| Yarrawarrah | 5.9 km | Not mapped | 69% |
| Bangor | 5.9 km | Not mapped | 73% |
| Loftus | 6.5 km | Not mapped | 62% |
| Goarra | 6.7 km | Not mapped | 100% |
| Heathcote | 6.9 km | 0% | 95% |