Crabtree flood map & planning overlays
A planning-constraint profile of Crabtree
(Huon Valley, TAS) - 29.13 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
29.13 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Crabtree's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Crabtree
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
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.
Crabtree at a glance
How Crabtree is zoned
Buying in Crabtree? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 29.13 km², Crabtree is highly constrained by planning overlays. About 6% 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. The median lot measures about 68,015 m² across 201 parcels.
Who lives in Crabtree
Census 2021 figures published by the ABS for the Crabtree 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 1002, and decile 9 within Tasmania. The national average is 1000.
Age profile
Share of Crabtree's 308 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Huonville - Franklin, the wider ABS statistical area containing Crabtree. There is no annual population series published at suburb level, so this describes the surrounding area rather than Crabtree itself.
6,860 in 2001 to 10,266 in 2025, up 50%.
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.
Crabtree 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 Crabtree 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 130 Crabtree addresses (+$9 with the planning report).
See what's in the $9 report →Crabtree planning - frequently asked
Is Crabtree flood-prone?
About 6% of Crabtree falls within a mapped flood overlay, against the council-wide suburb average of 8%. Modelled flood depth, velocity and flood level are held for about 130 Crabtree addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Crabtree bushfire-prone?
Around 100% of Crabtree is mapped as bushfire-prone, compared with a Huon Valley average of 99%.
Is Crabtree under a flight path?
No aircraft were observed over Crabtree in the period sampled (4 Sep 2026 to 3 Oct 2026). 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 Crabtree?
The dominant planning zone in Crabtree is Rural, though the suburb also includes Environmental Management and Landscape Conservation.
Does Crabtree have heritage-listed places?
Crabtree has 1 heritage-listed place on record.
What is the typical lot size in Crabtree?
Across 201 surveyed parcels in Crabtree, the median lot size is about 68,015 m².
What is the population of Crabtree?
At the 2021 Census Crabtree had 308 usual residents, with a median age of 40 and an average household size of 2.6 people. The wider Huonville - Franklin statistical area, which contains Crabtree, went from 6,860 people in 2001 to 10,266 in 2025, up 50%.
Is Crabtree an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Crabtree scores 1002 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 Crabtree?
Median household income in Crabtree was $1,625 a week at the 2021 Census, against $1,206 for the typical suburb in Huon Valley. Median rent was $313 a week and the median mortgage repayment $1,692 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lucaston | 3.6 km | 7% | 100% |
| Mountain River | 5.4 km | 9% | 100% |
| Grove | 5.8 km | 11% | 100% |
| Ranelagh | 7.3 km | 9% | 98% |
| Lower Longley Kingborough |
8.2 km | 3% | 100% |
| Wellington Park Glenorchy |
9.2 km | 2% | 100% |
| Huonville | 10.2 km | 20% | 96% |
| Lachlan Derwent Valley |
10.6 km | 5% | 100% |
| Longley Kingborough |
10.7 km | 7% | 100% |
| Sandfly Kingborough |
10.8 km | 6% | 100% |