Phegans Bay flood map & planning overlays
A planning-constraint profile of Phegans Bay
(Central Coast, NSW) - 0.65 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
0.65 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Phegans Bay'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 Phegans Bay
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: observed, lowest 2,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Phegans Bay at a glance
How Phegans Bay is zoned
Buying in Phegans Bay? 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 0.65 km², Phegans Bay is highly constrained by planning overlays. About 28% of the suburb sits within a mapped flood overlay, and 89% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Environmental Conservation. The median lot measures about 580 m² across 270 parcels.
Who lives in Phegans Bay
Census 2021 figures published by the ABS for the Phegans Bay 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 1081, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Phegans Bay's 406 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Woy Woy - Blackwall, the wider ABS statistical area containing Phegans Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Phegans Bay itself.
13,029 in 2001 to 14,566 in 2025, up 12%.
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.
Phegans Bay 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 Phegans Bay 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 Phegans Bay. 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 Phegans Bay lot.
See what's in the $9 report →Phegans Bay planning - frequently asked
Is Phegans Bay flood-prone?
About 28% of Phegans Bay falls within a mapped flood overlay, against the council-wide suburb average of 30%.
Is Phegans Bay bushfire-prone?
Around 89% of Phegans Bay is mapped as bushfire-prone, compared with a Central Coast average of 69%.
Is Phegans Bay under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Phegans Bay, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 2,500 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 Phegans Bay?
The dominant planning zone in Phegans Bay is Environmental Conservation, though the suburb also includes Low Density Residential and Recreational Waterways.
Does Phegans Bay have heritage-listed places?
Phegans Bay has 3 heritage-listed places on record.
What is the typical lot size in Phegans Bay?
Across 270 surveyed parcels in Phegans Bay, the median lot size is about 580 m².
Does Phegans Bay have a train station?
There is no train station inside Phegans Bay itself. The suburb is served by 8 bus stops.
What is the population of Phegans Bay?
At the 2021 Census Phegans Bay had 406 usual residents, with a median age of 48 and an average household size of 2.4 people. The wider Woy Woy - Blackwall statistical area, which contains Phegans Bay, went from 13,029 people in 2001 to 14,566 in 2025, up 12%.
Is Phegans Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Phegans Bay scores 1081 and sits in decile 10 of 10 nationally and decile 9 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Phegans Bay?
Median household income in Phegans Bay was $2,075 a week at the 2021 Census, against $1,735 for the typical suburb in Central Coast. Median rent was $460 a week and the median mortgage repayment $2,392 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Horsfield Bay | 0.7 km | 30% | 99% |
| Woy Woy Bay | 2.1 km | 23% | 92% |
| Koolewong | 2.5 km | 70% | 32% |
| Woy Woy | 3.0 km | 34% | 62% |
| Blackwall | 3.1 km | 48% | 43% |
| St Huberts Island | 3.3 km | 97% | 0% |
| Umina Beach | 3.5 km | 47% | 39% |
| Ettalong Beach | 3.9 km | 54% | 5% |
| Tascott | 4.2 km | 54% | 48% |
| Saratoga | 4.3 km | 58% | 32% |