Denman flood map & planning overlays
A planning-constraint profile of Denman
(Muswellbrook, NSW) - 116.68 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
116.68 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Denman'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 Denman
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 6,500 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.
Denman at a glance
How Denman is zoned
Buying in Denman? 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 116.68 km², Denman is highly constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay, and 99% is flagged bushfire-prone. There are 30 heritage-listed sites on record, and the dominant land-use zone is Primary Production. The median lot measures about 1,504 m² across 1,191 parcels.
Who lives in Denman
Census 2021 figures published by the ABS for the Denman 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 928, and decile 2 within New South Wales. The national average is 1000.
Age profile
Share of Denman's 1,821 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Muswellbrook Surrounds, the wider ABS statistical area containing Denman. There is no annual population series published at suburb level, so this describes the surrounding area rather than Denman itself.
3,877 in 2001 to 4,264 in 2025, up 10%.
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.
Denman 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 Denman 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.
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 Denman lot.
See what's in the $9 report →Denman planning - frequently asked
Is Denman flood-prone?
About 1% of Denman falls within a mapped flood overlay, against the council-wide suburb average of 0%.
Is Denman bushfire-prone?
Around 99% of Denman is mapped as bushfire-prone, compared with a Muswellbrook average of 96%.
Is Denman under a flight path?
Aircraft were observed over about 6% of Denman in the period sampled, but only above 3,000 ft - the lowest measured was 6,500 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 Denman?
The dominant planning zone in Denman is Primary Production, though the suburb also includes Environmental Management and Village.
Does Denman have heritage-listed places?
Denman has 30 heritage-listed places on record.
What is the typical lot size in Denman?
Across 1,191 surveyed parcels in Denman, the median lot size is about 1,504 m². There are also 35 registered easements mapped in the suburb.
Does Denman have a train station?
There is no train station inside Denman itself. The suburb is served by 97 bus stops.
What is the population of Denman?
At the 2021 Census Denman had 1,821 usual residents, with a median age of 43 and an average household size of 2.4 people. The wider Muswellbrook Surrounds statistical area, which contains Denman, went from 3,877 people in 2001 to 4,264 in 2025, up 10%.
Is Denman an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Denman scores 928 and sits in decile 3 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 Denman?
Median household income in Denman was $1,427 a week at the 2021 Census, against $1,812 for the typical suburb in Muswellbrook. Median rent was $280 a week and the median mortgage repayment $1,650 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Dalswinton | 4.7 km | 0% | 99% |
| Mangoola | 6.5 km | Not mapped | 100% |
| Hollydeen | 10.6 km | Not mapped | 100% |
| Bureen | 11.0 km | Not mapped | 100% |
| Sandy Hollow | 11.9 km | Not mapped | 100% |
| Wybong | 12.1 km | Not mapped | 90% |
| Edderton | 12.2 km | Not mapped | 61% |
| Yarrawa | 14.3 km | Not mapped | 100% |
| Bengalla | 14.7 km | Not mapped | 74% |
| Castle Rock | 16.9 km | Not mapped | 99% |