Derwent Bridge flood map & planning overlays
A planning-constraint profile of Derwent Bridge
(Central Highlands, TAS) - 96.69 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 12 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
96.69 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Derwent Bridge's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Derwent Bridge
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 to
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.
Derwent Bridge at a glance
How Derwent Bridge is zoned
Buying in Derwent Bridge? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 96.69 km², Derwent Bridge is highly constrained by planning overlays. About 10% of the suburb sits within a mapped flood overlay, and 98% is flagged bushfire-prone. The dominant land-use zone is Environmental Management. The median lot measures about 8,191 m² across 46 parcels.
Who lives in Derwent Bridge
Census 2021 figures published by the ABS for the Derwent Bridge 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 868, and decile 2 within Tasmania. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Central Highlands, the wider ABS statistical area containing Derwent Bridge. There is no annual population series published at suburb level, so this describes the surrounding area rather than Derwent Bridge itself.
2,238 in 2001 to 2,494 in 2025, up 11%.
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.
Derwent Bridge 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 12 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 Derwent Bridge 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 over parts of Derwent Bridge. 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 →Derwent Bridge planning - frequently asked
Is Derwent Bridge flood-prone?
About 10% of Derwent Bridge falls within a mapped flood overlay, against the council-wide suburb average of 9%. Published flood models are held over parts of Derwent Bridge; the free check on the Flood Model Report page says whether one reaches a given address.
Is Derwent Bridge bushfire-prone?
Around 98% of Derwent Bridge is mapped as bushfire-prone, compared with a Central Highlands average of 96%.
Is Derwent Bridge under a flight path?
No aircraft were observed over Derwent Bridge in the period sampled (recent weeks to now). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Derwent Bridge?
The dominant planning zone in Derwent Bridge is Environmental Management, though the suburb also includes Rural and Utilities.
Does Derwent Bridge have heritage-listed places?
No heritage-listed places are on record within Derwent Bridge.
What is the typical lot size in Derwent Bridge?
Across 46 surveyed parcels in Derwent Bridge, the median lot size is about 8,191 m².
Is Derwent Bridge an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Derwent Bridge scores 868 and sits in decile 1 of 10 nationally and decile 2 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Bronte Park | 12.1 km | 6% | 99% |
| Butlers Gorge | 13.9 km | 26% | 82% |
| Bradys Lake | 20.4 km | 19% | 88% |
| Tarraleah | 22.8 km | 6% | 98% |
| London Lakes | 25.8 km | 32% | 67% |
| Walls Of Jerusalem Meander Valley |
26.6 km | 6% | 100% |
| Dee | 29.5 km | 11% | 93% |
| Little Pine Lagoon | 30.3 km | 8% | 98% |
| Wayatinah | 32.8 km | 12% | 98% |
| Lake St Clair West Coast |
34.2 km | 5% | 97% |