Wantirna South flood map & planning overlays
Wantirna South is Knox's oldest (42) under its busiest sky.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Wantirna South
(Knox, VIC) - 14.12 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
14.12 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Wantirna South'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 Wantirna South
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled 4 Sep to 24 Oct 2026
typical observed square 1 a day
Night movements: observed, lowest 2,000 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.
How this is measured
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.
Wantirna South at a glance
How Wantirna South is zoned
Selling in Wantirna South? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 14.12 km², Wantirna South is highly constrained by planning overlays. About 13% of the suburb sits within a mapped flood overlay, and 39% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Neighbourhood Residential Zone (NRZ4). The median lot measures about 687 m² across 9,289 parcels.
Who lives in Wantirna South
Census 2021 figures published by the ABS for the Wantirna South 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 1057, and decile 9 within Victoria. The national average is 1000.
Age profile
Share of Wantirna South's 20,754 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Wantirna South, the wider ABS statistical area containing Wantirna South. There is no annual population series published at suburb level, so this describes the surrounding area rather than Wantirna South itself.
18,014 in 2001 to 18,475 in 2025, up 3%.
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.
Wantirna South 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 | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, 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 24 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 Wantirna South 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.
See what's in the $9 report →Aircraft have been seen below 3,000 ft over about 92% of Wantirna South. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and the indicative soil reactivity range to expect for a Wantirna South lot.
Wantirna South planning - frequently asked
Is Wantirna South flood-prone?
About 13% of Wantirna South falls within a mapped flood overlay, against the council-wide suburb average of 12%.
Is Wantirna South bushfire-prone?
Around 39% of Wantirna South is mapped as bushfire-prone, compared with a Knox average of 42%.
Is Wantirna South under a flight path?
Aircraft were observed below 3,000 ft over about 92% of Wantirna South, and over about 96% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 24 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 4,500 ft. At the busiest point in the suburb about 30 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 Wantirna South?
The dominant planning zone in Wantirna South is Neighbourhood Residential Zone (NRZ4), though the suburb also includes Public Park and Recreation Zone (PPRZ) and Transport Zone (TRZ2).
Does Wantirna South have heritage-listed places?
Wantirna South has 2 heritage-listed places on record.
What is the typical lot size in Wantirna South?
Across 9,289 surveyed parcels in Wantirna South, the median lot size is about 687 m². There are also 3,967 registered easements mapped in the suburb.
Does Wantirna South have a train station?
There is no train station inside Wantirna South itself. The suburb is served by 132 bus stops.
What is the population of Wantirna South?
At the 2021 Census Wantirna South had 20,754 usual residents, with a median age of 42 and an average household size of 2.7 people. The wider Wantirna South statistical area, which contains Wantirna South, went from 18,014 people in 2001 to 18,475 in 2025, up 3%.
Is Wantirna South an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Wantirna South scores 1057 and sits in decile 9 of 10 nationally and decile 9 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Wantirna South?
Median household income in Wantirna South was $1,915 a week at the 2021 Census, against $1,915 for the typical suburb in Knox. Median rent was $441 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Wantirna | 1.9 km | 15% | 33% |
| Knoxfield | 3.0 km | 10% | 10% |
| Vermont South Whitehorse |
3.4 km | 15% | 15% |
| Scoresby | 3.9 km | 37% | 46% |
| Vermont Whitehorse |
4.0 km | 4% | 11% |
| Glen Waverley Monash |
4.7 km | 9% | 7% |
| Bayswater | 4.8 km | 16% | 10% |
| Heathmont Maroondah |
5.1 km | 7% | 5% |
| Wheelers Hill Monash |
5.3 km | 9% | 18% |
| Forest Hill Whitehorse |
5.4 km | 2% | 0% |