Chester Hill flood map & planning overlays
A planning-constraint profile of Chester Hill
(Canterbury-Bankstown, NSW) - 4.06 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.
Constraint readout
4.06 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to Chester Hill'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 Chester Hill
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 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.
Chester Hill at a glance
How Chester Hill is zoned
Buying in Chester Hill? 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 4.06 km², Chester Hill is relatively unconstrained by planning overlays. About 4% of the suburb sits within a mapped flood overlay. There are 11 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 558 m² across 3,930 parcels.
Who lives in Chester Hill
Census 2021 figures published by the ABS for the Chester Hill 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 903, and decile 2 within New South Wales. The national average is 1000.
Age profile
Share of Chester Hill's 14,007 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Chester Hill - Sefton, the wider ABS statistical area containing Chester Hill. There is no annual population series published at suburb level, so this describes the surrounding area rather than Chester Hill itself.
15,789 in 2001 to 21,806 in 2025, up 38%.
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.
Chester Hill 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 Chester Hill 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 Chester Hill. 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 Chester Hill. 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 Chester Hill lot.
See what's in the $9 report →Chester Hill planning - frequently asked
Is Chester Hill flood-prone?
About 4% of Chester Hill falls within a mapped flood overlay, against the council-wide suburb average of 18%. Published flood models are held over parts of Chester Hill; the free check on the Flood Model Report page says whether one reaches a given address.
Is Chester Hill bushfire-prone?
Bushfire mapping covers Chester Hill and little to none of it is mapped as bushfire-prone (the Canterbury-Bankstown average is 10%).
Is Chester Hill under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Chester Hill, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,500 ft. At the busiest point in the suburb about 14 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 Chester Hill?
The dominant planning zone in Chester Hill is Low Density Residential, though the suburb also includes Infrastructure and General Industrial.
Does Chester Hill have heritage-listed places?
Chester Hill has 11 heritage-listed places on record.
What is the typical lot size in Chester Hill?
Across 3,930 surveyed parcels in Chester Hill, the median lot size is about 558 m². There are also 4 registered easements mapped in the suburb.
Does Chester Hill have a train station?
Yes - Chester Hill has 1 train station: Chester Hill Station. It is also served by 191 bus stops.
What is the population of Chester Hill?
At the 2021 Census Chester Hill had 14,007 usual residents, with a median age of 34 and an average household size of 3.2 people. The wider Chester Hill - Sefton statistical area, which contains Chester Hill, went from 15,789 people in 2001 to 21,806 in 2025, up 38%.
Is Chester Hill an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Chester Hill scores 903 and sits in decile 2 of 10 nationally and decile 2 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Chester Hill?
Median household income in Chester Hill was $1,355 a week at the 2021 Census, against $1,706 for the typical suburb in Canterbury-Bankstown. Median rent was $380 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Sefton | 1.3 km | 23% | 0% |
| Villawood | 1.9 km | 6% | 2% |
| Bass Hill | 2.2 km | 1% | 18% |
| Birrong | 2.3 km | 23% | 0% |
| Old Guildford Fairfield |
2.3 km | 28% | 0% |
| Regents Park Cumberland |
2.4 km | 5% | 0% |
| Guildford Cumberland |
2.5 km | 0% | 6% |
| Fairfield East Fairfield |
2.5 km | 47% | 0% |
| South Granville Cumberland |
2.6 km | Not mapped | 8% |
| Lansdowne | 3.0 km | 27% | 94% |