Botany Bay flood map & planning overlays

A planning-constraint profile of Botany Bay (Unincorporated - Botany Bay Area, NSW) - 34.47 km², mapped from live council and state overlay data. This suburb is relatively unconstrained.
Profile updated 3 October 2026.

Suburb-wide figures; the free map shows which overlays touch your lot.

Planning schematicBotany Bay

Constraint readout

34.47 km² - this suburb is relatively unconstrained by planning overlays.

Flood overlay <1%

≈ council avg (1%)

Bushfire-prone <1%

≈ council avg (0%)

Environmental<1%

≈ council avg (0%)

Heritage sites 14 Aircraft noise (ANEF) 59% Aircraft seen below 3,000 ft 90% Mostly Unzoned Land

Elevation hillshade with street names, clipped to Botany Bay's boundary, with the flood, bushfire and environmental overlays drawn on top. Amber hatching is the published aircraft noise (ANEF) contour. 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 Botany 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.

Inside an aircraft noise contour

59%

59% of the suburb's land sits inside a published ANEF or airport-environs contour. Contours vary street by street, so whether a particular lot is inside one needs a property-level check.

Highest contour present

ANEF 35

Under AS 2021, land at ANEF 30 and above is generally unacceptable for new houses and most noise-sensitive uses. The contour is a forecast, not a measurement at any one house.

Contours held

sydney_airport_anef

Observed overflight - sampled 4 Sep to 2 Oct 2026

Under observed aircraft

98%

of the suburb, at or below 10,000 ft

Below 3,000 ft

90%

of the suburb's area

Lowest measured

500 ft

averaging 500 ft · ground movements recorded: on or beside an aerodrome

Busiest square

~356 a day

356 a day below 3,000 ft · ±4%
typical observed square 3 a day

Night movements: observed, lowest 500 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.

Botany Bay at a glance

Parcels 7 Median lot 174,163 m² Mapped easements 1

How Botany Bay is zoned

Unzoned Land 38%

Special Activities 25%

Working Waterways 18%

Recreational Waterways 18%

Public Recreation 1%

National Parks and Nature Reserves 0%

Buying in Botany 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 34.47 km², Botany Bay is relatively unconstrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay. There are 14 heritage-listed sites on record, and the dominant land-use zone is Unzoned Land. The median lot measures about 174,163 m² across 7 parcels.

Botany 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)	Inside a held contour	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 Botany 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 90% of Botany 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 Botany Bay lot.

See what's in the $9 report →

Botany Bay planning - frequently asked

Is Botany Bay flood-prone?

Flood mapping covers Botany Bay and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).

Is Botany Bay bushfire-prone?

Bushfire mapping covers Botany Bay and little to none of it is mapped as bushfire-prone (the Unincorporated - Botany Bay Area average is 0%).

Is Botany Bay affected by aircraft noise?

About 59% of Botany Bay sits inside a published aircraft noise contour, and the highest contour present is ANEF 35 - under AS 2021, land above ANEF 25 is generally considered unacceptable for new houses, and 20-25 conditionally acceptable with noise attenuation. ANEF contours are forecasts published per airport and used to control noise-sensitive development; they are not a measurement at any one house, and a property can sit under a flight path and outside every contour.

Is Botany Bay under a flight path?

Aircraft were observed below 3,000 ft over about 90% of Botany Bay, and over about 98% 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 500 ft. At the busiest point in the suburb about 356 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 Botany Bay?

The dominant planning zone in Botany Bay is Unzoned Land, though the suburb also includes Special Activities and Working Waterways.

Does Botany Bay have heritage-listed places?

Botany Bay has 14 heritage-listed places on record.

What is the typical lot size in Botany Bay?

Across 7 surveyed parcels in Botany Bay, the median lot size is about 174,163 m². There are also 1 registered easements mapped in the suburb.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Ramsgate Beach Bayside	3.0 km	0%	0%
Monterey Bayside	3.0 km	28%	0%
Dolls Point Bayside	3.4 km	37%	0%
Brighton-Le-Sands Bayside	3.4 km	8%	0%
Ramsgate Bayside	3.5 km	16%	0%
Port Botany Randwick	3.7 km	Not mapped	0%
Mascot Bayside	3.8 km	13%	0%
Kyeemagh Bayside	4.0 km	34%	0%
Botany Bayside	4.1 km	0%	0%
Sandringham Bayside	4.1 km	26%	0%

See all Unincorporated - Botany Bay Area suburb profiles →