Swan Bay flood map & planning overlays
A planning-constraint profile of Swan Bay
(Launceston, TAS) - 13.59 km², mapped from live council 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
13.59 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Swan Bay'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 Swan Bay
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
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.
Swan Bay at a glance
How Swan Bay is zoned
Buying in Swan Bay? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 13.59 km², Swan Bay is highly constrained by planning overlays. About 7% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Rural Living. The median lot measures about 11,910 m² across 284 parcels.
Who lives in Swan Bay
Census 2021 figures published by the ABS for the Swan Bay 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 1047, and decile 10 within Tasmania. The national average is 1000.
Age profile
Share of Swan Bay's 457 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Dilston - Lilydale, the wider ABS statistical area containing Swan Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Swan Bay itself.
3,847 in 2001 to 4,589 in 2025, up 19%.
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.
Swan Bay 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 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 Swan Bay 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 5% of Swan Bay. 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 260 Swan Bay addresses (+$9 with the planning report).
See what's in the $9 report →Swan Bay planning - frequently asked
Is Swan Bay flood-prone?
About 7% of Swan Bay falls within a mapped flood overlay, against the council-wide suburb average of 13%. Modelled flood depth, velocity and flood level are held for about 260 Swan Bay addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Swan Bay bushfire-prone?
Around 100% of Swan Bay is mapped as bushfire-prone, compared with a Launceston average of 80%.
Is Swan Bay under a flight path?
Aircraft were observed below 3,000 ft over about 5% of Swan Bay, and over about 15% 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 1,000 ft, with an average of 5,000 ft. At the busiest point in the suburb about 2 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 Swan Bay?
The dominant planning zone in Swan Bay is Rural Living, though the suburb also includes Agriculture and Rural.
Does Swan Bay have heritage-listed places?
Swan Bay has 1 heritage-listed place on record.
What is the typical lot size in Swan Bay?
Across 284 surveyed parcels in Swan Bay, the median lot size is about 11,910 m².
What is the population of Swan Bay?
At the 2021 Census Swan Bay had 457 usual residents, with a median age of 38 and an average household size of 2.9 people. The wider Dilston - Lilydale statistical area, which contains Swan Bay, went from 3,847 people in 2001 to 4,589 in 2025, up 19%.
Is Swan Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Swan Bay scores 1047 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 Swan Bay?
Median household income in Swan Bay was $2,237 a week at the 2021 Census, against $1,375 for the typical suburb in Launceston. Median rent was $313 a week and the median mortgage repayment $1,700 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Windermere | 2.0 km | 14% | 91% |
| Blackwall West Tamar |
4.0 km | 11% | 74% |
| Gravelly Beach West Tamar |
4.4 km | 7% | 97% |
| Lanena West Tamar |
4.7 km | 2% | 92% |
| Rosevears West Tamar |
5.2 km | 5% | 90% |
| Swan Point West Tamar |
5.6 km | 14% | 94% |
| Dilston | 5.7 km | 13% | 99% |
| Grindelwald West Tamar |
6.6 km | 5% | 76% |
| Exeter West Tamar |
6.8 km | 12% | 99% |
| Robigana West Tamar |
6.9 km | 12% | 100% |