Sloping Main flood map & planning overlays
A planning-constraint profile of Sloping Main
(Tasman, TAS) - 46.89 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
46.89 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Sloping Main'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 Sloping Main
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
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.
Sloping Main at a glance
How Sloping Main is zoned
Buying in Sloping Main? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 46.89 km², Sloping Main is highly constrained by planning overlays. About 14% 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 32,736 m² across 161 parcels.
Who lives in Sloping Main
Census 2021 figures published by the ABS for the Sloping Main 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 950, and decile 6 within Tasmania. The national average is 1000.
Age profile
Share of Sloping Main's 67 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Forestier - Tasman, the wider ABS statistical area containing Sloping Main. There is no annual population series published at suburb level, so this describes the surrounding area rather than Sloping Main itself.
2,282 in 2001 to 2,738 in 2025, up 20%.
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.
Sloping Main 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 Sloping Main 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 1% of Sloping Main. 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 110 Sloping Main addresses (+$9 with the planning report).
See what's in the $9 report →Sloping Main planning - frequently asked
Is Sloping Main flood-prone?
About 14% of Sloping Main falls within a mapped flood overlay, against the council-wide suburb average of 6%. Modelled flood depth, velocity and flood level are held for about 110 Sloping Main addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Sloping Main bushfire-prone?
Around 100% of Sloping Main is mapped as bushfire-prone, compared with a Tasman average of 100%.
Is Sloping Main under a flight path?
Aircraft were observed below 3,000 ft over about 1% of Sloping Main, and over about 3% 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 2,000 ft, with an average of 3,500 ft. 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 Sloping Main?
The dominant planning zone in Sloping Main is Rural, though the suburb also includes Environmental Management and Low Density Residential.
Does Sloping Main have heritage-listed places?
Sloping Main has 1 heritage-listed place on record.
What is the typical lot size in Sloping Main?
Across 161 surveyed parcels in Sloping Main, the median lot size is about 32,736 m².
What is the population of Sloping Main?
At the 2021 Census Sloping Main had 67 usual residents, with a median age of 63 and an average household size of 2.1 people. The wider Forestier - Tasman statistical area, which contains Sloping Main, went from 2,282 people in 2001 to 2,738 in 2025, up 20%.
Is Sloping Main an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Sloping Main scores 950 and sits in decile 3 of 10 nationally and decile 6 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Sloping Main?
Median household income in Sloping Main was $899 a week at the 2021 Census, against $905 for the typical suburb in Tasman. Median rent was $300 a week and the median mortgage repayment $1,354 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Saltwater River | 4.0 km | 8% | 100% |
| Premaydena | 8.5 km | 8% | 100% |
| Primrose Sands Sorell |
11.7 km | 14% | 83% |
| Clifton Beach Clarence |
12.1 km | 20% | 95% |
| Connellys Marsh Sorell |
12.2 km | 21% | 100% |
| Nubeena | 12.8 km | 5% | 99% |
| Cremorne Clarence |
13.9 km | 45% | 82% |
| Koonya | 14.0 km | 5% | 100% |
| Dunalley Sorell |
14.2 km | 11% | 99% |
| Carlton River Sorell |
15.2 km | 7% | 100% |