Yowie Bay flood map & planning overlays
A planning-constraint profile of Yowie Bay
(Sutherland Shire, NSW) - 1.81 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
1.81 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Yowie 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 Yowie 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 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.
Yowie Bay at a glance
How Yowie Bay is zoned
Buying in Yowie 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 1.81 km², Yowie Bay is highly constrained by planning overlays. About 37% of the suburb sits within a mapped flood overlay, and 2% is flagged bushfire-prone. There are 27 heritage-listed sites on record, and the dominant land-use zone is Environmental Management. The median lot measures about 759 m² across 974 parcels.
Who lives in Yowie Bay
Census 2021 figures published by the ABS for the Yowie 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 1130, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Yowie Bay's 3,053 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Miranda - Yowie Bay, the wider ABS statistical area containing Yowie Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Yowie Bay itself.
16,884 in 2001 to 22,804 in 2025, up 35%.
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.
Yowie 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 Yowie 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 23% of Yowie 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 Yowie Bay lot.
See what's in the $9 report →Yowie Bay planning - frequently asked
Is Yowie Bay flood-prone?
About 37% of Yowie Bay falls within a mapped flood overlay, against the council-wide suburb average of 22%.
Is Yowie Bay bushfire-prone?
Around 2% of Yowie Bay is mapped as bushfire-prone, compared with a Sutherland Shire average of 46%.
Is Yowie Bay under a flight path?
Aircraft were observed below 3,000 ft over about 23% of Yowie Bay, and over about 87% 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 500 ft, with an average of 5,000 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 Yowie Bay?
The dominant planning zone in Yowie Bay is Environmental Management, though the suburb also includes Natural Waterways and Low Density Residential.
Does Yowie Bay have heritage-listed places?
Yowie Bay has 27 heritage-listed places on record.
What is the typical lot size in Yowie Bay?
Across 974 surveyed parcels in Yowie Bay, the median lot size is about 759 m². There are also 64 registered easements mapped in the suburb.
Does Yowie Bay have a train station?
There is no train station inside Yowie Bay itself. The suburb is served by 25 bus stops.
What is the population of Yowie Bay?
At the 2021 Census Yowie Bay had 3,053 usual residents, with a median age of 46 and an average household size of 2.9 people. The wider Miranda - Yowie Bay statistical area, which contains Yowie Bay, went from 16,884 people in 2001 to 22,804 in 2025, up 35%.
Is Yowie Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Yowie Bay scores 1130 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 Yowie Bay?
Median household income in Yowie Bay was $2,959 a week at the 2021 Census, against $2,626 for the typical suburb in Sutherland Shire. Median rent was $750 a week and the median mortgage repayment $3,200 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Gymea Bay | 1.4 km | 17% | 13% |
| Caringbah South | 1.6 km | 22% | 1% |
| Miranda | 2.0 km | 16% | <1% |
| Lilli Pilli | 2.2 km | 59% | 0% |
| Gymea | 2.3 km | 11% | 1% |
| Grays Point | 2.4 km | 30% | 26% |
| Dolans Bay | 2.5 km | 29% | 0% |
| Caringbah | 2.7 km | 33% | 0% |
| Port Hacking | 2.8 km | 53% | 0% |
| Kirrawee | 3.4 km | <1% | 13% |