Seven Mile Beach flood map & planning overlays
A planning-constraint profile of Seven Mile Beach
(Clarence, TAS) - 14.8 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
14.8 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Seven Mile Beach'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 Seven Mile Beach
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 1,000 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.
Seven Mile Beach at a glance
How Seven Mile Beach is zoned
Buying in Seven Mile Beach? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 14.8 km², Seven Mile Beach is highly constrained by planning overlays. About 22% of the suburb sits within a mapped flood overlay, and 77% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Open Space. The median lot measures about 1,000 m² across 615 parcels.
Who lives in Seven Mile Beach
Census 2021 figures published by the ABS for the Seven Mile Beach 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 1068, and decile 10 within Tasmania. The national average is 1000.
Age profile
Share of Seven Mile Beach's 1,467 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Cambridge, the wider ABS statistical area containing Seven Mile Beach. There is no annual population series published at suburb level, so this describes the surrounding area rather than Seven Mile Beach itself.
6,678 in 2001 to 8,883 in 2025, up 33%.
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.
Seven Mile Beach 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 Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Bushfire-prone mapping | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Zoning | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Heritage and environment | Mapped where published | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Aircraft noise contours (ANEF) | Not held | the Tasmanian Planning Scheme and the LIST (Land Tasmania), 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 Seven Mile Beach 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 34% of Seven Mile Beach. 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 here: a Flood Model Report is available for about 640 Seven Mile Beach addresses (+$9 with the planning report).
See what's in the $9 report →Seven Mile Beach planning - frequently asked
Is Seven Mile Beach flood-prone?
About 22% of Seven Mile Beach falls within a mapped flood overlay, against the council-wide suburb average of 17%. Modelled flood depth, velocity and flood level are held for about 640 Seven Mile Beach addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Seven Mile Beach bushfire-prone?
Around 77% of Seven Mile Beach is mapped as bushfire-prone, compared with a Clarence average of 66%.
Is Seven Mile Beach under a flight path?
Aircraft were observed below 3,000 ft over about 34% of Seven Mile Beach, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 1,000 ft. At the busiest point in the suburb about 1 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 Seven Mile Beach?
The dominant planning zone in Seven Mile Beach is Open Space, though the suburb also includes Rural and Recreation.
Does Seven Mile Beach have heritage-listed places?
Seven Mile Beach has 2 heritage-listed places on record.
What is the typical lot size in Seven Mile Beach?
Across 615 surveyed parcels in Seven Mile Beach, the median lot size is about 1,000 m².
What is the population of Seven Mile Beach?
At the 2021 Census Seven Mile Beach had 1,467 usual residents, with a median age of 46 and an average household size of 2.6 people. The wider Cambridge statistical area, which contains Seven Mile Beach, went from 6,678 people in 2001 to 8,883 in 2025, up 33%.
Is Seven Mile Beach an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Seven Mile Beach scores 1068 and sits in decile 9 of 10 nationally and decile 10 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Seven Mile Beach?
Median household income in Seven Mile Beach was $2,125 a week at the 2021 Census, against $1,723 for the typical suburb in Clarence. Median rent was $430 a week and the median mortgage repayment $1,781 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Roches Beach | 3.6 km | 27% | 45% |
| Acton Park | 3.6 km | 21% | 53% |
| Mount Rumney | 5.6 km | 5% | 100% |
| Clarendon Vale | 6.5 km | 18% | 58% |
| Midway Point Sorell |
6.5 km | 10% | 19% |
| Cambridge | 7.0 km | 15% | 79% |
| Lauderdale | 7.0 km | 68% | 21% |
| Oakdowns | 7.3 km | 22% | 13% |
| Rokeby | 8.4 km | 17% | 68% |
| Lewisham Sorell |
8.6 km | 11% | 89% |