Dean Park flood map & planning overlays
A planning-constraint profile of Dean Park
(Blacktown, NSW) - 1.48 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
1.48 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Dean Park'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 Dean Park
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
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.
Dean Park at a glance
How Dean Park is zoned
Buying in Dean Park? 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 1.48 km², Dean Park is highly constrained by planning overlays. About 26% of the suburb sits within a mapped flood overlay, and 29% is flagged bushfire-prone. The dominant land-use zone is Low Density Residential. The median lot measures about 551 m² across 1,028 parcels.
Who lives in Dean Park
Census 2021 figures published by the ABS for the Dean Park 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 956, and decile 3 within New South Wales. The national average is 1000.
Age profile
Share of Dean Park's 3,180 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Glendenning - Dean Park, the wider ABS statistical area containing Dean Park. There is no annual population series published at suburb level, so this describes the surrounding area rather than Dean Park itself.
8,178 in 2001 to 8,317 in 2025, up 2%.
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.
Dean Park 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 Dean Park 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 67% of Dean Park. 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 Dean Park. 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 Dean Park lot.
See what's in the $9 report →Dean Park planning - frequently asked
Is Dean Park flood-prone?
About 26% of Dean Park falls within a mapped flood overlay, against the council-wide suburb average of 16%. Published flood models are held over parts of Dean Park; the free check on the Flood Model Report page says whether one reaches a given address.
Is Dean Park bushfire-prone?
Around 29% of Dean Park is mapped as bushfire-prone, compared with a Blacktown average of 21%.
Is Dean Park under a flight path?
Aircraft were observed below 3,000 ft over about 67% of Dean Park, and over about 78% 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 3,500 ft. 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 Dean Park?
The dominant planning zone in Dean Park is Low Density Residential, though the suburb also includes Infrastructure and Public Recreation.
Does Dean Park have heritage-listed places?
No heritage-listed places are on record within Dean Park.
What is the typical lot size in Dean Park?
Across 1,028 surveyed parcels in Dean Park, the median lot size is about 551 m². There are also 1 registered easements mapped in the suburb.
Does Dean Park have a train station?
There is no train station inside Dean Park itself. The suburb is served by 47 bus stops.
What is the population of Dean Park?
At the 2021 Census Dean Park had 3,180 usual residents, with a median age of 35 and an average household size of 2.9 people. The wider Glendenning - Dean Park statistical area, which contains Dean Park, went from 8,178 people in 2001 to 8,317 in 2025, up 2%.
Is Dean Park an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Dean Park scores 956 and sits in decile 4 of 10 nationally and decile 3 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Dean Park?
Median household income in Dean Park was $1,846 a week at the 2021 Census, against $2,117 for the typical suburb in Blacktown. Median rent was $400 a week and the median mortgage repayment $2,102 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Colebee | 1.3 km | 26% | 53% |
| Glendenning | 1.4 km | 22% | 18% |
| Hassall Grove | 2.0 km | 12% | 10% |
| Nirimba Fields | 2.1 km | 64% | 30% |
| Oakhurst | 2.4 km | 12% | 2% |
| Plumpton | 2.9 km | 11% | 10% |
| Woodcroft | 2.9 km | 11% | 16% |
| Doonside | 3.0 km | 23% | 24% |
| Marayong | 3.3 km | 20% | 0% |
| Hebersham | 3.5 km | 3% | 0% |