Colongra flood map & planning overlays
A planning-constraint profile of Colongra
(Central Coast, NSW) - 7.82 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
7.82 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Colongra'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 Colongra
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 0 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.
Colongra at a glance
How Colongra is zoned
Buying in Colongra? 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 7.82 km², Colongra is highly constrained by planning overlays. About 14% of the suburb sits within a mapped flood overlay, and 84% is flagged bushfire-prone. The dominant land-use zone is Infrastructure. The median lot measures about 45,882 m² across 72 parcels.
Colongra 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 | Not 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 Colongra 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 Colongra. 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 Colongra. 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 Colongra lot.
See what's in the $9 report →Colongra planning - frequently asked
Is Colongra flood-prone?
About 14% of Colongra falls within a mapped flood overlay, against the council-wide suburb average of 30%. Published flood models are held over parts of Colongra; the free check on the Flood Model Report page says whether one reaches a given address.
Is Colongra bushfire-prone?
Around 84% of Colongra is mapped as bushfire-prone, compared with a Central Coast average of 69%.
Is Colongra under a flight path?
Aircraft were observed below 3,000 ft over about 27% of Colongra, and over about 41% 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 1,000 ft, with an average of 3,000 ft. At the busiest point in the suburb about 0 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 Colongra?
The dominant planning zone in Colongra is Infrastructure, though the suburb also includes National Parks and Nature Reserves and Environmental Conservation.
Does Colongra have heritage-listed places?
No heritage-listed places are on record within Colongra.
What is the typical lot size in Colongra?
Across 72 surveyed parcels in Colongra, the median lot size is about 45,882 m². There are also 4 registered easements mapped in the suburb.
Does Colongra have a train station?
There is no train station inside Colongra itself. The suburb is served by 2 bus stops.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Halekulani | 1.4 km | 15% | 55% |
| San Remo | 2.2 km | 28% | 48% |
| Buff Point | 2.3 km | 30% | 39% |
| Budgewoi | 2.8 km | 48% | 49% |
| Doyalson North | 3.0 km | 3% | 96% |
| Lake Munmorah | 3.2 km | 20% | 75% |
| Doyalson | 3.4 km | 9% | 86% |
| Blue Haven | 3.7 km | 31% | 41% |
| Budgewoi Peninsula | 3.9 km | 13% | 99% |
| Kingfisher Shores | 4.4 km | 45% | 94% |