North Arm flood map & planning overlays
A planning-constraint profile of North Arm
(Tweed, NSW) - 5.18 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
5.18 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to North Arm'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 North Arm
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
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.
North Arm at a glance
How North Arm is zoned
Buying in North Arm? 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 5.18 km², North Arm is highly constrained by planning overlays. About 18% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Rural Landscape. The median lot measures about 21,352 m² across 65 parcels.
Who lives in North Arm
Census 2021 figures published by the ABS for the North Arm 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 978, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of North Arm's 117 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Murwillumbah Surrounds, the wider ABS statistical area containing North Arm. There is no annual population series published at suburb level, so this describes the surrounding area rather than North Arm 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.
North Arm 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 North Arm 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 27% of North Arm. 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 North Arm lot.
See what's in the $9 report →North Arm planning - frequently asked
Is North Arm flood-prone?
About 18% of North Arm falls within a mapped flood overlay, against the council-wide suburb average of 29%.
Is North Arm bushfire-prone?
Around 100% of North Arm is mapped as bushfire-prone, compared with a Tweed average of 91%.
Is North Arm under a flight path?
Aircraft were observed below 3,000 ft over about 27% of North Arm, and over about 70% 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 4,000 ft. 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 North Arm?
The dominant planning zone in North Arm is Rural Landscape, though the suburb also includes Primary Production and Natural Waterways.
Does North Arm have heritage-listed places?
North Arm has 1 heritage-listed place on record.
What is the typical lot size in North Arm?
Across 65 surveyed parcels in North Arm, the median lot size is about 21,352 m². There are also 2 registered easements mapped in the suburb.
What is the population of North Arm?
At the 2021 Census North Arm had 117 usual residents, with a median age of 42 and an average household size of 2.8 people. The wider Murwillumbah Surrounds statistical area, which contains North Arm, went from 8,963 people in 2001 to 10,835 in 2025, up 21%.
Is North Arm an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), North Arm scores 978 and sits in decile 5 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 North Arm?
Median household income in North Arm was $1,562 a week at the 2021 Census, against $1,394 for the typical suburb in Tweed. Median rent was $550 a week and the median mortgage repayment $1,857 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Crystal Creek | 2.5 km | 23% | 100% |
| Nobbys Creek | 3.8 km | 17% | 100% |
| Eungella | 4.0 km | 22% | 100% |
| Murwillumbah | 4.1 km | 71% | 61% |
| Bray Park | 4.2 km | 46% | 69% |
| Byangum | 4.3 km | 37% | 99% |
| Kynnumboon | 4.4 km | 62% | 100% |
| Chillingham | 5.2 km | 20% | 100% |
| Dungay | 6.7 km | 9% | 100% |
| Dunbible | 6.9 km | 28% | 99% |