North Curl Curl flood map & planning overlays
A planning-constraint profile of North Curl Curl
(Northern Beaches, NSW) - 1.46 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
1.46 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to North Curl Curl'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 Curl Curl
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 2 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.
North Curl Curl at a glance
How North Curl Curl is zoned
Buying in North Curl Curl? 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 1.46 km², North Curl Curl is highly constrained by planning overlays. About 40% of the suburb sits within a mapped flood overlay, and 6% is flagged bushfire-prone. There are 8 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 528 m² across 1,317 parcels.
Who lives in North Curl Curl
Census 2021 figures published by the ABS for the North Curl Curl 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 1141, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of North Curl Curl's 4,288 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Dee Why (South) - North Curl Curl, the wider ABS statistical area containing North Curl Curl. There is no annual population series published at suburb level, so this describes the surrounding area rather than North Curl Curl itself.
8,010 in 2001 to 9,455 in 2025, up 18%.
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 Curl Curl 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 North Curl Curl 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 North Curl Curl. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of North Curl Curl. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a North Curl Curl lot.
See what's in the $9 report →North Curl Curl planning - frequently asked
Is North Curl Curl flood-prone?
About 40% of North Curl Curl falls within a mapped flood overlay, against the council-wide suburb average of 12%. Published flood models are held over parts of North Curl Curl; the free check on the Flood Model Report page says whether one reaches a given address.
Is North Curl Curl bushfire-prone?
Around 6% of North Curl Curl is mapped as bushfire-prone, compared with a Northern Beaches average of 47%.
Is North Curl Curl under a flight path?
Aircraft were observed below 3,000 ft over about 100% of North Curl Curl, in the period sampled (4 Sep 2026 to 26 Sep 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 North Curl Curl?
The dominant planning zone in North Curl Curl is Low Density Residential, though the suburb also includes Public Recreation and General Industrial.
Does North Curl Curl have heritage-listed places?
North Curl Curl has 8 heritage-listed places on record.
What is the typical lot size in North Curl Curl?
Across 1,317 surveyed parcels in North Curl Curl, the median lot size is about 528 m². There are also 7 registered easements mapped in the suburb.
Does North Curl Curl have a train station?
There is no train station inside North Curl Curl itself. The suburb is served by 48 bus stops.
What is the population of North Curl Curl?
At the 2021 Census North Curl Curl had 4,288 usual residents, with a median age of 40 and an average household size of 3.2 people. The wider Dee Why (South) - North Curl Curl statistical area, which contains North Curl Curl, went from 8,010 people in 2001 to 9,455 in 2025, up 18%.
Is North Curl Curl an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), North Curl Curl scores 1141 and sits in decile 10 of 10 nationally and decile 10 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in North Curl Curl?
Median household income in North Curl Curl was $3,611 a week at the 2021 Census, against $2,778 for the typical suburb in Northern Beaches. Median rent was $700 a week and the median mortgage repayment $4,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Curl Curl | 0.8 km | 46% | 0% |
| Dee Why | 1.4 km | 28% | 10% |
| Freshwater | 1.5 km | 10% | 0% |
| Brookvale | 1.9 km | 39% | 18% |
| Narraweena | 2.1 km | 10% | 8% |
| Queenscliff | 2.2 km | 13% | 0% |
| North Manly | 2.3 km | 45% | 0% |
| Beacon Hill | 3.2 km | 3% | 49% |
| Collaroy | 3.2 km | 2% | 23% |
| Manly Vale | 3.2 km | 28% | 23% |