Nicholls flood map & planning overlays
A planning-constraint profile of Nicholls
(Gungahlin, ACT) - 6.67 km², mapped from live district 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
6.67 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Nicholls'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 Nicholls
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 3 Oct 2026
typical observed square 1 a day
Night movements: observed, lowest 6,000 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.
Nicholls at a glance
How Nicholls is zoned
Buying in Nicholls? The Territory Plan zone on this page sits alongside the Crown lease, which sets what a block may actually be used for.
Across its 6.67 km², Nicholls is highly constrained by planning overlays. About 8% of the suburb sits within a mapped flood overlay, and 36% is flagged bushfire-prone. There are 38 heritage-listed sites on record, and the dominant land-use zone is Suburban. The median lot measures about 801 m² across 1,990 parcels.
Who lives in Nicholls
Census 2021 figures published by the ABS for the Nicholls 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 1125, and decile 8 within the Australian Capital Territory. The national average is 1000.
Age profile
Share of Nicholls's 6,680 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Nicholls, the wider ABS statistical area containing Nicholls. There is no annual population series published at suburb level, so this describes the surrounding area rather than Nicholls itself.
6,013 in 2001 to 6,507 in 2025, up 8%.
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.
Nicholls 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 | the ACT Territory Plan and ACT Government spatial data |
| Bushfire-prone mapping | Mapped | the ACT Territory Plan and ACT Government spatial data |
| Zoning | Mapped | the ACT Territory Plan and ACT Government spatial data |
| Heritage and environment | Mapped where published | the ACT Territory Plan and ACT Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the ACT Territory Plan and ACT Government spatial data, 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 Nicholls 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.
Published flood models are held over parts of Nicholls. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
See what's in the $9 report →Nicholls planning - frequently asked
Is Nicholls flood-prone?
About 8% of Nicholls falls within a mapped flood overlay, against the district-wide suburb average of 2%. Published flood models are held over parts of Nicholls; the free check on the Flood Model Report page says whether one reaches a given address.
Is Nicholls bushfire-prone?
Around 36% of Nicholls is mapped as bushfire-prone, compared with a Gungahlin average of 38%.
Is Nicholls under a flight path?
Aircraft were observed over about 78% of Nicholls 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 Nicholls?
The dominant planning zone in Nicholls is Suburban, though the suburb also includes Hills, Ridges and Buffer Areas and Restricted Access Recreation.
Does Nicholls have heritage-listed places?
Nicholls has 38 heritage-listed places on record.
What is the typical lot size in Nicholls?
Across 1,990 surveyed parcels in Nicholls, the median lot size is about 801 m². There are also 1,405 registered easements mapped in the suburb.
Does Nicholls have a train station?
There is no train station inside Nicholls itself. The suburb is served by 49 bus stops.
What is the population of Nicholls?
At the 2021 Census Nicholls had 6,680 usual residents, with a median age of 44 and an average household size of 2.9 people. The wider Nicholls statistical area, which contains Nicholls, went from 6,013 people in 2001 to 6,507 in 2025, up 8%.
Is Nicholls an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Nicholls scores 1125 and sits in decile 10 of 10 nationally and decile 8 within the Australian Capital Territory (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Nicholls?
Median household income in Nicholls was $3,134 a week at the 2021 Census, against $2,680 for the typical suburb in Gungahlin. Median rent was $502 a week and the median mortgage repayment $2,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Crace | 1.9 km | 0% | 46% |
| Palmerston | 2.1 km | 0% | 9% |
| Ngunnawal | 2.1 km | 4% | 9% |
| Giralang Belconnen |
2.4 km | 6% | 33% |
| Casey | 2.5 km | 0% | 48% |
| Spence Belconnen |
3.1 km | 0% | 18% |
| Gungahlin | 3.2 km | 4% | 36% |
| Hall Hall |
3.4 km | 0% | 92% |
| Evatt Belconnen |
3.5 km | 6% | 3% |
| Amaroo | 3.5 km | 9% | 15% |