Coles Bay flood map & planning overlays
A planning-constraint profile of Coles Bay
(Glamorgan-Spring Bay, TAS) - 106.91 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 10 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
106.91 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Coles Bay's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Coles Bay at a glance
How Coles Bay is zoned
Buying in Coles 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 106.91 km², Coles Bay is highly constrained by planning overlays. About 26% of the suburb sits within a mapped flood overlay, and 86% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Environmental Management. The median lot measures about 1,046 m² across 1,043 parcels.
Who lives in Coles Bay
Census 2021 figures published by the ABS for the Coles 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 994, and decile 9 within Tasmania. The national average is 1000.
Age profile
Share of Coles Bay's 515 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Triabunna - Bicheno, the wider ABS statistical area containing Coles Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coles Bay itself.
3,987 in 2001 to 5,303 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.
Coles 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 | Watched, not yet sampled here | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 10 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 Coles 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.
Published flood models are held here: a Flood Model Report is available for about 900 Coles Bay addresses (+$9 with the planning report).
See what's in the $9 report →Coles Bay planning - frequently asked
Is Coles Bay flood-prone?
About 26% of Coles Bay falls within a mapped flood overlay, against the council-wide suburb average of 16%. Modelled flood depth, velocity and flood level are held for about 900 Coles Bay addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Coles Bay bushfire-prone?
Around 86% of Coles Bay is mapped as bushfire-prone, compared with a Glamorgan-Spring Bay average of 96%.
What is the zoning in Coles Bay?
The dominant planning zone in Coles Bay is Environmental Management, though the suburb also includes Rural and Landscape Conservation.
Does Coles Bay have heritage-listed places?
Coles Bay has 1 heritage-listed place on record.
What is the typical lot size in Coles Bay?
Across 1,043 surveyed parcels in Coles Bay, the median lot size is about 1,046 m².
What is the population of Coles Bay?
At the 2021 Census Coles Bay had 515 usual residents, with a median age of 38 and an average household size of 2.0 people. The wider Triabunna - Bicheno statistical area, which contains Coles Bay, went from 3,987 people in 2001 to 5,303 in 2025, up 33%.
Is Coles Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coles Bay scores 994 and sits in decile 6 of 10 nationally and decile 9 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Coles Bay?
Median household income in Coles Bay was $1,354 a week at the 2021 Census, against $972 for the typical suburb in Glamorgan-Spring Bay. Median rent was $260 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Friendly Beaches | 6.9 km | 23% | 93% |
| Dolphin Sands | 6.9 km | 44% | 82% |
| Apslawn | 12.8 km | 35% | 86% |
| Freycinet | 16.8 km | 13% | 100% |
| Cranbrook | 18.0 km | 19% | 95% |
| Bicheno | 19.0 km | 20% | 99% |
| Swansea | 19.3 km | 15% | 99% |
| Rocky Hills | 25.3 km | 5% | 100% |
| Schouten Island | 28.4 km | 8% | 100% |
| Douglas River Break O'Day |
29.7 km | 30% | 100% |