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.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
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. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Lucas Heights
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled 4 Sep to 26 Sep 2026
typical observed square 4 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
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.
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: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Lucas Heights data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| 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 |
| Aircraft noise contours (ANEF) | Not held | NSW Government spatial services, NSW ePlanning and published council flood studies, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 26 September 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.
Aircraft have been seen below 3,000 ft over about 7% of Lucas Heights. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Lucas Heights lot.
See what's in the $9 report →Lucas Heights planning - frequently asked
Is Lucas Heights flood-prone?
Flood mapping covers Lucas Heights and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 22%).
Is Lucas Heights bushfire-prone?
Around 85% of Lucas Heights is mapped as bushfire-prone, compared with a Sutherland Shire average of 46%.
Is Lucas Heights under a flight path?
Aircraft were observed below 3,000 ft over about 7% of Lucas Heights, and over about 98% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 500 ft, with an average of 7,000 ft. At the busiest point in the suburb about 150 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
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.
Does Lucas Heights have heritage-listed places?
Lucas Heights has 1 heritage-listed place on record.
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.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Barden Ridge | 2.9 km | 2% | 70% |
| Engadine | 3.9 km | <1% | 64% |
| Menai | 4.6 km | 3% | 83% |
| Woronora Heights | 5.2 km | 6% | 86% |
| Holsworthy Campbelltown |
5.3 km | <1% | 98% |
| Yarrawarrah | 5.9 km | 0% | 69% |
| Bangor | 5.9 km | 10% | 73% |
| Loftus | 6.5 km | 0% | 62% |
| Goarra | 6.7 km | 0% | 100% |
| Heathcote | 6.9 km | 0% | 95% |