North Avoca flood map & planning overlays
A planning-constraint profile of North Avoca
(Central Coast, NSW) - 1.73 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
1.73 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to North Avoca'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 Avoca
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 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.
North Avoca at a glance
How North Avoca is zoned
Buying in North Avoca? 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 1.73 km², North Avoca is highly constrained by planning overlays. About 36% of the suburb sits within a mapped flood overlay, and 69% is flagged bushfire-prone. The dominant land-use zone is Low Density Residential. The median lot measures about 657 m² across 1,029 parcels.
Who lives in North Avoca
Census 2021 figures published by the ABS for the North Avoca 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 1119, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of North Avoca's 2,318 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Terrigal - North Avoca, the wider ABS statistical area containing North Avoca. There is no annual population series published at suburb level, so this describes the surrounding area rather than North Avoca itself.
11,850 in 2001 to 15,631 in 2025, up 32%.
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 Avoca 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 Avoca 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 66% of North Avoca. 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 Avoca lot.
See what's in the $9 report →North Avoca planning - frequently asked
Is North Avoca flood-prone?
About 36% of North Avoca falls within a mapped flood overlay, against the council-wide suburb average of 30%.
Is North Avoca bushfire-prone?
Around 69% of North Avoca is mapped as bushfire-prone, compared with a Central Coast average of 69%.
Is North Avoca under a flight path?
Aircraft were observed below 3,000 ft over about 66% of North Avoca, and over about 75% 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 3,000 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 North Avoca?
The dominant planning zone in North Avoca is Low Density Residential, though the suburb also includes Public Recreation and Natural Waterways.
Does North Avoca have heritage-listed places?
No heritage-listed places are on record within North Avoca.
What is the typical lot size in North Avoca?
Across 1,029 surveyed parcels in North Avoca, the median lot size is about 657 m². There are also 15 registered easements mapped in the suburb.
Does North Avoca have a train station?
There is no train station inside North Avoca itself. The suburb is served by 54 bus stops.
What is the population of North Avoca?
At the 2021 Census North Avoca had 2,318 usual residents, with a median age of 41 and an average household size of 2.8 people. The wider Terrigal - North Avoca statistical area, which contains North Avoca, went from 11,850 people in 2001 to 15,631 in 2025, up 32%.
Is North Avoca an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), North Avoca scores 1119 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 Avoca?
Median household income in North Avoca was $2,511 a week at the 2021 Census, against $1,735 for the typical suburb in Central Coast. Median rent was $545 a week and the median mortgage repayment $2,509 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Terrigal | 1.3 km | 18% | 59% |
| Avoca Beach | 1.8 km | 25% | 64% |
| Picketts Valley | 2.6 km | 14% | 85% |
| Copacabana | 3.4 km | 15% | 47% |
| Erina Heights | 3.8 km | 9% | 59% |
| Kincumber | 4.2 km | 29% | 76% |
| Wamberal | 4.9 km | 31% | 63% |
| Macmasters Beach | 5.0 km | 20% | 90% |
| Erina | 5.3 km | 24% | 56% |
| Matcham | 5.8 km | 7% | 91% |