Newnham flood map & planning overlays
A planning-constraint profile of Newnham
(Launceston, TAS) - 6.06 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
6.06 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Newnham'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 Newnham
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
typical observed square 4 a day
Night movements: observed, lowest 8,500 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.
Newnham at a glance
How Newnham is zoned
Buying in Newnham? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title.
Across its 6.06 km², Newnham is highly constrained by planning overlays. About 20% of the suburb sits within a mapped flood overlay, and 47% is flagged bushfire-prone. There are 20 heritage-listed sites on record, and the dominant land-use zone is General Residential. The median lot measures about 666 m² across 3,073 parcels.
Who lives in Newnham
Census 2021 figures published by the ABS for the Newnham 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 873, and decile 2 within Tasmania. The national average is 1000.
Age profile
Share of Newnham's 7,073 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Newnham - Mayfield, the wider ABS statistical area containing Newnham. There is no annual population series published at suburb level, so this describes the surrounding area rather than Newnham itself.
8,016 in 2001 to 10,070 in 2025, up 26%.
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.
Newnham 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 Newnham 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.
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 2,900 Newnham addresses (+$9 with the planning report).
See what's in the $9 report →Newnham planning - frequently asked
Is Newnham flood-prone?
About 20% of Newnham 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 2,900 Newnham addresses, from published flood studies; the free check on the Flood Model Report page says whether a model reaches a given address.
Is Newnham bushfire-prone?
Around 47% of Newnham is mapped as bushfire-prone, compared with a Launceston average of 80%.
Is Newnham under a flight path?
Aircraft were observed over about 42% of Newnham in the period sampled, but only above 3,000 ft - the lowest measured was 1,000 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 Newnham?
The dominant planning zone in Newnham is General Residential, though the suburb also includes Rural and Utilities.
Does Newnham have heritage-listed places?
Newnham has 20 heritage-listed places on record.
What is the typical lot size in Newnham?
Across 3,073 surveyed parcels in Newnham, the median lot size is about 666 m².
What is the population of Newnham?
At the 2021 Census Newnham had 7,073 usual residents, with a median age of 34 and an average household size of 2.5 people. The wider Newnham - Mayfield statistical area, which contains Newnham, went from 8,016 people in 2001 to 10,070 in 2025, up 26%.
Is Newnham an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Newnham scores 873 and sits in decile 1 of 10 nationally and decile 2 within Tasmania (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Newnham?
Median household income in Newnham was $1,223 a week at the 2021 Census, against $1,375 for the typical suburb in Launceston. Median rent was $270 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mayfield | 1.8 km | 7% | 43% |
| Mowbray | 3.4 km | 17% | 70% |
| Rocherlea | 3.8 km | 8% | 97% |
| Invermay | 3.8 km | 61% | 10% |
| Launceston | 5.3 km | 59% | 32% |
| Trevallyn West Tamar |
6.0 km | 9% | 77% |
| East Launceston | 6.2 km | 4% | 0% |
| Legana West Tamar |
6.5 km | 12% | 84% |
| Ravenswood | 6.6 km | 13% | 88% |
| Riverside West Tamar |
6.9 km | 13% | 89% |