St Leonards flood map & planning overlays
A planning-constraint profile of St Leonards
(Launceston, TAS) - 44.73 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
44.73 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to St Leonards'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 St Leonards
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
typical observed square 2 a day
Night movements: observed, lowest 5,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
St Leonards at a glance
How St Leonards is zoned
Buying in St Leonards? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 44.73 km², St Leonards is highly constrained by planning overlays. About 9% of the suburb sits within a mapped flood overlay, and 98% is flagged bushfire-prone. There are 32 heritage-listed sites on record, and the dominant land-use zone is Agriculture. The median lot measures about 840 m² across 1,283 parcels.
Who lives in St Leonards
Census 2021 figures published by the ABS for the St Leonards 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 940, and decile 5 within Tasmania. The national average is 1000.
Age profile
Share of St Leonards's 2,351 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Waverley - St Leonards, the wider ABS statistical area containing St Leonards. There is no annual population series published at suburb level, so this describes the surrounding area rather than St Leonards itself.
3,531 in 2001 to 4,107 in 2025, up 16%.
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.
St Leonards 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 St Leonards 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 2% of St Leonards. 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 1,100 St Leonards addresses (+$9 with the planning report).
See what's in the $9 report →St Leonards planning - frequently asked
Is St Leonards flood-prone?
About 9% of St Leonards 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 1,100 St Leonards addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is St Leonards bushfire-prone?
Around 98% of St Leonards is mapped as bushfire-prone, compared with a Launceston average of 80%.
Is St Leonards under a flight path?
Aircraft were observed below 3,000 ft over about 2% of St Leonards, and over about 28% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 1,500 ft, with an average of 4,500 ft. At the busiest point in the suburb about 3 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 St Leonards?
The dominant planning zone in St Leonards is Agriculture, though the suburb also includes Rural and Rural Living.
Does St Leonards have heritage-listed places?
St Leonards has 32 heritage-listed places on record.
What is the typical lot size in St Leonards?
Across 1,283 surveyed parcels in St Leonards, the median lot size is about 840 m².
What is the population of St Leonards?
At the 2021 Census St Leonards had 2,351 usual residents, with a median age of 38 and an average household size of 2.5 people. The wider Waverley - St Leonards statistical area, which contains St Leonards, went from 3,531 people in 2001 to 4,107 in 2025, up 16%.
Is St Leonards an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), St Leonards scores 940 and sits in decile 3 of 10 nationally and decile 5 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in St Leonards?
Median household income in St Leonards was $1,572 a week at the 2021 Census, against $1,375 for the typical suburb in Launceston. Median rent was $290 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Norwood | 4.7 km | 31% | 58% |
| Relbia | 4.9 km | 16% | 100% |
| Waverley | 5.0 km | 5% | 94% |
| Youngtown | 6.0 km | 8% | 64% |
| Punchbowl | 6.1 km | 15% | 68% |
| Kings Meadows | 6.3 km | 10% | 48% |
| Newstead | 6.8 km | 38% | 29% |
| Ravenswood | 7.0 km | 13% | 88% |
| White Hills | 7.1 km | 6% | 100% |
| South Launceston | 7.5 km | 10% | 14% |