One Mile flood map & planning overlays
A planning-constraint profile of One Mile
(Port Stephens, NSW) - 5.15 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
5.15 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to One Mile'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 One Mile
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 2 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
One Mile at a glance
How One Mile is zoned
Buying in One Mile? 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 5.15 km², One Mile is highly constrained by planning overlays. About 52% of the suburb sits within a mapped flood overlay, and 83% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 4,145 m² across 156 parcels.
Who lives in One Mile
Census 2021 figures published by the ABS for the One Mile 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 987, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of One Mile's 501 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Anna Bay, the wider ABS statistical area containing One Mile. There is no annual population series published at suburb level, so this describes the surrounding area rather than One Mile itself.
4,975 in 2001 to 6,868 in 2025, up 38%.
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.
One Mile 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 One Mile 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 18% of One Mile. 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 One Mile lot.
See what's in the $9 report →One Mile planning - frequently asked
Is One Mile flood-prone?
About 52% of One Mile falls within a mapped flood overlay, against the council-wide suburb average of 45%.
Is One Mile bushfire-prone?
Around 83% of One Mile is mapped as bushfire-prone, compared with a Port Stephens average of 82%.
Is One Mile under a flight path?
Aircraft were observed below 3,000 ft over about 18% of One Mile, and over about 50% 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 5,500 ft. At the busiest point in the suburb about 5 aircraft a day were recorded passing over one 500 m square. 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 One Mile?
The dominant planning zone in One Mile is National Parks and Nature Reserves, though the suburb also includes Environmental Living and Rural Landscape.
Does One Mile have heritage-listed places?
One Mile has 1 heritage-listed place on record.
What is the typical lot size in One Mile?
Across 156 surveyed parcels in One Mile, the median lot size is about 4,145 m².
Does One Mile have a train station?
There is no train station inside One Mile itself. The suburb is served by 18 bus stops.
What is the population of One Mile?
At the 2021 Census One Mile had 501 usual residents, with a median age of 54 and an average household size of 2.6 people. The wider Anna Bay statistical area, which contains One Mile, went from 4,975 people in 2001 to 6,868 in 2025, up 38%.
Is One Mile an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), One Mile scores 987 and sits in decile 6 of 10 nationally and decile 5 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in One Mile?
Median household income in One Mile was $1,542 a week at the 2021 Census, against $1,421 for the typical suburb in Port Stephens. Median rent was $390 a week and the median mortgage repayment $2,211 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Boat Harbour | 2.3 km | 13% | 78% |
| Fishermans Bay | 3.3 km | 6% | 100% |
| Nelson Bay | 3.5 km | 25% | 79% |
| Anna Bay | 4.1 km | 58% | 76% |
| Fingal Bay | 4.2 km | 22% | 78% |
| Corlette | 4.5 km | 20% | 44% |
| Salamander Bay | 4.8 km | 52% | 75% |
| Taylors Beach | 5.8 km | 77% | 97% |
| Shoal Bay | 6.8 km | 27% | 84% |
| Soldiers Point | 8.2 km | 26% | 23% |