Strathnairn flood map & planning overlays
A planning-constraint profile of Strathnairn
(Belconnen, ACT) - 4.57 km², mapped from live district and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
4.57 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Strathnairn'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 Strathnairn
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 26 Sep 2026
Night movements: observed, lowest 4,000 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.
Strathnairn at a glance
How Strathnairn is zoned
Buying in Strathnairn? The Territory Plan zone on this page sits alongside the Crown lease, which sets what a block may actually be used for.
Across its 4.57 km², Strathnairn is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 79% is flagged bushfire-prone. There are 132 heritage-listed sites on record, and the dominant land-use zone is River Corridor. The median lot measures about 407 m² across 829 parcels.
Who lives in Strathnairn
Census 2021 figures published by the ABS for the Strathnairn 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 1103, and decile 6 within the Australian Capital Territory. The national average is 1000.
Age profile
Share of Strathnairn's 714 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Strathnairn, the wider ABS statistical area containing Strathnairn. There is no annual population series published at suburb level, so this describes the surrounding area rather than Strathnairn itself.
0 in 2001 to 2,208 in 2025.
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.
Strathnairn 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 26 September 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 Strathnairn 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 6% of Strathnairn. 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 Strathnairn. 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 →Strathnairn planning - frequently asked
Is Strathnairn flood-prone?
Flood mapping covers Strathnairn and none of the suburb falls within a mapped flood overlay (the district-wide suburb average is 3%). Published flood models are held over parts of Strathnairn; the free check on the Flood Model Report page says whether one reaches a given address.
Is Strathnairn bushfire-prone?
Around 79% of Strathnairn is mapped as bushfire-prone, compared with a Belconnen average of 26%.
Is Strathnairn under a flight path?
Aircraft were observed below 3,000 ft over about 6% of Strathnairn, and over about 49% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 2,500 ft, with an average of 4,000 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 Strathnairn?
The dominant planning zone in Strathnairn is River Corridor, though the suburb also includes Suburban and Urban Residential.
Does Strathnairn have heritage-listed places?
Strathnairn has 132 heritage-listed places on record.
What is the typical lot size in Strathnairn?
Across 829 surveyed parcels in Strathnairn, the median lot size is about 407 m². There are also 209 registered easements mapped in the suburb.
Does Strathnairn have a train station?
There is no train station inside Strathnairn itself. The suburb is served by 5 bus stops.
What is the population of Strathnairn?
At the 2021 Census Strathnairn had 714 usual residents, with a median age of 30 and an average household size of 2.9 people.
Is Strathnairn an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Strathnairn scores 1103 and sits in decile 10 of 10 nationally and decile 6 within the Australian Capital Territory (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Strathnairn?
Median household income in Strathnairn was $2,629 a week at the 2021 Census, against $2,331 for the typical suburb in Belconnen. Median rent was $515 a week and the median mortgage repayment $2,191 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Macnamara | 1.6 km | 0% | 91% |
| Holt | 2.7 km | 0% | 3% |
| Macgregor | 3.4 km | 5% | 39% |
| Higgins | 3.9 km | 0% | 5% |
| Latham | 4.4 km | 8% | 33% |
| Hawker | 5.0 km | 0% | 9% |
| Dunlop | 5.0 km | 4% | 42% |
| Scullin | 5.0 km | 0% | 0% |
| Charnwood | 5.5 km | 0% | 2% |
| Florey | 5.8 km | 0% | 0% |