Mount Wilson zoning & planning overlays
A planning-constraint profile of Mount Wilson
(Blue Mountains, NSW) - 41.69 km², mapped from live council and
state overlay data. This suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
41.69 km² - this suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Elevation hillshade with street names, clipped to Mount Wilson's boundary, with the bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft. No flood layer is drawn because we hold no flood mapping for this area.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Mount Wilson
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 1 a day
Night movements: observed, lowest 5,000 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.
Mount Wilson at a glance
How Mount Wilson is zoned
Buying in Mount Wilson? 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 41.69 km², Mount Wilson is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 100% is flagged bushfire-prone. There are 50 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 21,091 m² across 186 parcels.
Who lives in Mount Wilson
Census 2021 figures published by the ABS for the Mount Wilson 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 1055, and decile 8 within New South Wales. The national average is 1000.
Age profile
Share of Mount Wilson's 81 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Blue Mountains - North, the wider ABS statistical area containing Mount Wilson. There is no annual population series published at suburb level, so this describes the surrounding area rather than Mount Wilson itself.
27 in 2001 to 9 in 2025, down 67%.
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.
Mount Wilson data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Not 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 Mount Wilson 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 Mount Wilson lot.
See what's in the $9 report →Mount Wilson planning - frequently asked
Is Mount Wilson flood-prone?
We don't yet hold flood mapping covering Mount Wilson, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Blue Mountains is the authority to check for flood mapping in this area.
Is Mount Wilson bushfire-prone?
Around 100% of Mount Wilson is mapped as bushfire-prone, compared with a Blue Mountains average of 96%.
Is Mount Wilson under a flight path?
Aircraft were observed over about 41% of Mount Wilson in the period sampled, but only above 3,000 ft - the lowest measured was 3,000 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 Mount Wilson?
The dominant planning zone in Mount Wilson is National Parks and Nature Reserves, though the suburb also includes Rural Landscape and Environmental Conservation.
Does Mount Wilson have heritage-listed places?
Mount Wilson has 50 heritage-listed places on record.
What is the typical lot size in Mount Wilson?
Across 186 surveyed parcels in Mount Wilson, the median lot size is about 21,091 m².
What is the population of Mount Wilson?
At the 2021 Census Mount Wilson had 81 usual residents, with a median age of 62 and an average household size of 1.7 people. The wider Blue Mountains - North statistical area, which contains Mount Wilson, went from 27 people in 2001 to 9 in 2025, down 67%.
Is Mount Wilson an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Mount Wilson scores 1055 and sits in decile 9 of 10 nationally and decile 8 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Mount Wilson?
Median household income in Mount Wilson was $2,250 a week at the 2021 Census, against $2,083 for the typical suburb in Blue Mountains.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mount Tomah | 4.5 km | 0% | 100% |
| Berambing Hawkesbury |
5.7 km | 0% | 100% |
| Mount Irvine | 6.5 km | 0% | 100% |
| Birrabang | 8.3 km | Not mapped | 100% |
| Bell Lithgow City |
8.5 km | Not mapped | 100% |
| The Devils Wilderness Hawkesbury |
11.1 km | 0% | 100% |
| Carmarthen | 12.3 km | 0% | 100% |
| Burramoko | 12.9 km | Not mapped | 100% |
| Dargan Lithgow City |
13.1 km | Not mapped | 100% |
| Govetts | 13.6 km | Not mapped | 100% |