Casula flood map & planning overlays
A planning-constraint profile of Casula
(Liverpool, NSW) - 6.89 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
6.89 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Casula'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 Casula
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 7 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.
Casula at a glance
How Casula is zoned
Buying in Casula? 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 6.89 km², Casula is moderately constrained by planning overlays. About 11% of the suburb sits within a mapped flood overlay, and 20% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 567 m² across 4,548 parcels.
Who lives in Casula
Census 2021 figures published by the ABS for the Casula 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 969, and decile 4 within New South Wales. The national average is 1000.
Age profile
Share of Casula's 16,584 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Casula, the wider ABS statistical area containing Casula. There is no annual population series published at suburb level, so this describes the surrounding area rather than Casula itself.
11,535 in 2001 to 17,039 in 2025, up 48%.
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.
Casula 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 Casula 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 Casula. 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 Casula. 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 Casula lot.
See what's in the $9 report →Casula planning - frequently asked
Is Casula flood-prone?
About 11% of Casula falls within a mapped flood overlay, against the council-wide suburb average of 24%. Published flood models are held over parts of Casula; the free check on the Flood Model Report page says whether one reaches a given address.
Is Casula bushfire-prone?
Around 20% of Casula is mapped as bushfire-prone, compared with a Liverpool average of 41%.
Is Casula under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Casula, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 1,500 ft. At the busiest point in the suburb about 24 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 Casula?
The dominant planning zone in Casula is Low Density Residential, though the suburb also includes Medium Density Residential and Public Recreation.
Does Casula have heritage-listed places?
Casula has 9 heritage-listed places on record.
What is the typical lot size in Casula?
Across 4,548 surveyed parcels in Casula, the median lot size is about 567 m². There are also 13 registered easements mapped in the suburb.
Does Casula have a train station?
Yes - Casula has 1 train station: Casula Station. It is also served by 194 bus stops.
What is the population of Casula?
At the 2021 Census Casula had 16,584 usual residents, with a median age of 36 and an average household size of 3.2 people. The wider Casula statistical area, which contains Casula, went from 11,535 people in 2001 to 17,039 in 2025, up 48%.
Is Casula an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Casula scores 969 and sits in decile 4 of 10 nationally and decile 4 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Casula?
Median household income in Casula was $1,730 a week at the 2021 Census, against $1,959 for the typical suburb in Liverpool. Median rent was $450 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lurnea | 1.8 km | 14% | <1% |
| Glenfield Campbelltown |
2.1 km | 0% | 58% |
| Prestons | 2.6 km | 28% | 21% |
| Cartwright | 3.1 km | 28% | 44% |
| Edmondson Park | 3.6 km | 15% | 44% |
| Miller | 3.8 km | 27% | 17% |
| Macquarie Links Campbelltown |
3.9 km | 0% | 52% |
| Sadleir | 4.0 km | 17% | 7% |
| Liverpool | 4.0 km | 21% | 8% |
| Ashcroft | 4.0 km | 28% | 24% |