Mount Warning flood map & planning overlays
A planning-constraint profile of Mount Warning
(Tweed, NSW) - 54.44 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
54.44 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Warning'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 Mount Warning
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 1 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.
Mount Warning at a glance
How Mount Warning is zoned
Buying in Mount Warning? 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 54.44 km², Mount Warning is highly constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 53 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 202,490 m² across 70 parcels.
Who lives in Mount Warning
Census 2021 figures published by the ABS for the Mount Warning 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 973, and decile 4 within New South Wales. The national average is 1000.
Age profile
Share of Mount Warning's 148 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Murwillumbah Surrounds, the wider ABS statistical area containing Mount Warning. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Warning itself.
8,963 in 2001 to 10,835 in 2025, up 21%.
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.
Mount Warning 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 Mount Warning 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 10% of Mount Warning. 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 Mount Warning lot.
See what's in the $9 report →Mount Warning planning - frequently asked
Is Mount Warning flood-prone?
About 1% of Mount Warning falls within a mapped flood overlay, against the council-wide suburb average of 29%.
Is Mount Warning bushfire-prone?
Around 100% of Mount Warning is mapped as bushfire-prone, compared with a Tweed average of 91%.
Is Mount Warning under a flight path?
Aircraft were observed below 3,000 ft over about 10% of Mount Warning, and over about 62% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 2,000 ft, with an average of 5,000 ft. At the busiest point in the suburb about 1 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 Mount Warning?
The dominant planning zone in Mount Warning is National Parks and Nature Reserves, though the suburb also includes Deferred Matter and Rural Landscape.
Does Mount Warning have heritage-listed places?
Mount Warning has 53 heritage-listed places on record.
What is the typical lot size in Mount Warning?
Across 70 surveyed parcels in Mount Warning, the median lot size is about 202,490 m².
What is the population of Mount Warning?
At the 2021 Census Mount Warning had 148 usual residents, with a median age of 54 and an average household size of 1.8 people. The wider Murwillumbah Surrounds statistical area, which contains Mount Warning, went from 8,963 people in 2001 to 10,835 in 2025, up 21%.
Is Mount Warning an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Warning scores 973 and sits in decile 5 of 10 nationally and decile 4 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mount Warning?
Median household income in Mount Warning was $833 a week at the 2021 Census, against $1,394 for the typical suburb in Tweed. Median rent was $230 a week and the median mortgage repayment $2,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Cedar Creek | 3.4 km | <1% | 100% |
| Uki | 5.4 km | 19% | 100% |
| Terragon | 5.6 km | 10% | 99% |
| Eungella | 5.6 km | 22% | 100% |
| Tyalgum | 6.0 km | 11% | 100% |
| Byrrill Creek | 6.3 km | 8% | 100% |
| Dum Dum | 7.1 km | 6% | 100% |
| Brays Creek | 7.8 km | 4% | 100% |
| Zara | 8.5 km | 5% | 100% |
| Kunghur | 8.9 km | 8% | 100% |