Bilambil Heights flood map & planning overlays
A planning-constraint profile of Bilambil Heights
(Tweed, NSW) - 9.9 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
9.9 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Bilambil 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 Bilambil 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 2 Oct 2026
typical observed square 3 a day
Night movements: observed, lowest 1,500 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Bilambil Heights at a glance
How Bilambil Heights is zoned
Buying in Bilambil 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 9.9 km², Bilambil Heights is highly constrained by planning overlays. About 27% of the suburb sits within a mapped flood overlay, and 80% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Deferred Matter. The median lot measures about 693 m² across 1,439 parcels.
Who lives in Bilambil Heights
Census 2021 figures published by the ABS for the Bilambil Heights 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 989, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of Bilambil Heights's 3,491 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Tweed Heads, the wider ABS statistical area containing Bilambil Heights. There is no annual population series published at suburb level, so this describes the surrounding area rather than Bilambil Heights itself.
17,013 in 2001 to 21,576 in 2025, up 27%.
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.
Bilambil 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 3 October 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 Bilambil 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 100% of Bilambil 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 Bilambil Heights lot.
See what's in the $9 report →Bilambil Heights planning - frequently asked
Is Bilambil Heights flood-prone?
About 27% of Bilambil Heights falls within a mapped flood overlay, against the council-wide suburb average of 29%.
Is Bilambil Heights bushfire-prone?
Around 80% of Bilambil Heights is mapped as bushfire-prone, compared with a Tweed average of 91%.
Is Bilambil Heights under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Bilambil Heights, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,000 ft. At the busiest point in the suburb about 6 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 Bilambil Heights?
The dominant planning zone in Bilambil Heights is Deferred Matter, though the suburb also includes General Residential and Recreational Waterways.
Does Bilambil Heights have heritage-listed places?
Bilambil Heights has 1 heritage-listed place on record.
What is the typical lot size in Bilambil Heights?
Across 1,439 surveyed parcels in Bilambil Heights, the median lot size is about 693 m². There are also 1 registered easements mapped in the suburb.
Does Bilambil Heights have a train station?
There is no train station inside Bilambil Heights itself. The suburb is served by 42 bus stops.
What is the population of Bilambil Heights?
At the 2021 Census Bilambil Heights had 3,491 usual residents, with a median age of 44 and an average household size of 2.6 people. The wider Tweed Heads statistical area, which contains Bilambil Heights, went from 17,013 people in 2001 to 21,576 in 2025, up 27%.
Is Bilambil Heights an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Bilambil Heights scores 989 and sits in decile 6 of 10 nationally and decile 5 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Bilambil Heights?
Median household income in Bilambil Heights was $1,562 a week at the 2021 Census, against $1,394 for the typical suburb in Tweed. Median rent was $470 a week and the median mortgage repayment $1,901 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Cobaki | 2.6 km | 16% | 100% |
| Bilambil | 2.7 km | 22% | 96% |
| Tweed Heads West | 3.6 km | 79% | 46% |
| Terranora | 4.0 km | 30% | 70% |
| Cobaki Lakes | 4.0 km | 54% | 100% |
| Duroby | 4.1 km | 12% | 100% |
| Bungalora | 4.3 km | 22% | 100% |
| Piggabeen | 4.8 km | 14% | 100% |
| Tweed Heads South | 5.2 km | 85% | 42% |
| Carool | 5.6 km | 3% | 100% |