Mascot flood map & planning overlays
A planning-constraint profile of Mascot
(Bayside, NSW) - 12.09 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
12.09 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Mascot'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 Mascot
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
100% 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
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
typical observed square 6 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.
Mascot at a glance
How Mascot is zoned
Buying in Mascot? 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 12.09 km², Mascot is moderately constrained by planning overlays. About 13% of the suburb sits within a mapped flood overlay. There are 77 heritage-listed sites on record, and the dominant land-use zone is Infrastructure. The median lot measures about 361 m² across 2,950 parcels.
Who lives in Mascot
Census 2021 figures published by the ABS for the Mascot 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 1097, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Mascot's 21,591 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Sydney Airport, the wider ABS statistical area containing Mascot. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mascot itself.
0 in 2001 to 23 in 2025.
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.
Mascot 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 | 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 Mascot 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 97% of Mascot. 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 Mascot. 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 Mascot lot.
See what's in the $9 report →Mascot planning - frequently asked
Is Mascot flood-prone?
About 13% of Mascot falls within a mapped flood overlay, against the council-wide suburb average of 15%. Published flood models are held over parts of Mascot; the free check on the Flood Model Report page says whether one reaches a given address.
Is Mascot bushfire-prone?
Bushfire mapping covers Mascot and little to none of it is mapped as bushfire-prone (the Bayside average is 2%).
Is Mascot affected by aircraft noise?
About 100% of Mascot 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 Mascot under a flight path?
Aircraft were observed below 3,000 ft over about 97% of Mascot, and over about 100% 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 Mascot?
The dominant planning zone in Mascot is Infrastructure, though the suburb also includes Low Density Residential and Productivity Support.
Does Mascot have heritage-listed places?
Mascot has 77 heritage-listed places on record.
What is the typical lot size in Mascot?
Across 2,950 surveyed parcels in Mascot, the median lot size is about 361 m². There are also 10 registered easements mapped in the suburb.
Does Mascot have a train station?
Yes - Mascot has 5 train stations: Domestic Airport Station, International Airport Station, Mascot Station, Sydney Domestic Airport Station, Sydney International Airport Station. It is also served by 137 bus stops.
What is the population of Mascot?
At the 2021 Census Mascot had 21,591 usual residents, with a median age of 30 and an average household size of 2.5 people.
Is Mascot an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mascot scores 1097 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 Mascot?
Median household income in Mascot was $2,254 a week at the 2021 Census, against $1,962 for the typical suburb in Bayside. Median rent was $600 a week and the median mortgage repayment $2,600 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Botany | 1.7 km | 0% | 0% |
| Kyeemagh | 1.9 km | 34% | 0% |
| Brighton-Le-Sands | 2.9 km | 8% | 0% |
| Tempe Inner West |
2.9 km | 0% | 0% |
| Wolli Creek | 3.1 km | 30% | <1% |
| Arncliffe | 3.2 km | 12% | 0% |
| Banksia | 3.2 km | 21% | 0% |
| Banksmeadow | 3.3 km | Not mapped | 0% |
| Eastlakes | 3.4 km | 11% | 0% |
| St Peters Inner West |
3.5 km | Not mapped | 0% |