Ferntree Gully flood map & planning overlays
Ferntree Gully keeps 17 heritage places, the most in Knox, for 27,398 people.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Ferntree Gully
(Knox, VIC) - 14.01 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
14.01 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Ferntree Gully'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 Ferntree Gully
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 0 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.
Ferntree Gully at a glance
How Ferntree Gully is zoned
Selling in Ferntree Gully? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 14.01 km², Ferntree Gully is highly constrained by planning overlays. About 6% of the suburb sits within a mapped flood overlay, and 24% is flagged bushfire-prone. There are 17 heritage-listed sites on record, and the dominant land-use zone is Neighbourhood Residential Zone (NRZ4). The median lot measures about 725 m² across 13,700 parcels.
Who lives in Ferntree Gully
Census 2021 figures published by the ABS for the Ferntree Gully 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 1005, and decile 6 within Victoria. The national average is 1000.
Age profile
Share of Ferntree Gully's 27,398 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Ferntree Gully - North, the wider ABS statistical area containing Ferntree Gully. There is no annual population series published at suburb level, so this describes the surrounding area rather than Ferntree Gully itself.
13,461 in 2001 to 14,538 in 2025, up 8%.
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.
Ferntree Gully 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 Ferntree Gully 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 80% of Ferntree Gully. 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 Ferntree Gully lot.
Ferntree Gully planning - frequently asked
Is Ferntree Gully flood-prone?
About 6% of Ferntree Gully falls within a mapped flood overlay, against the council-wide suburb average of 12%.
Is Ferntree Gully bushfire-prone?
Around 24% of Ferntree Gully is mapped as bushfire-prone, compared with a Knox average of 42%.
Is Ferntree Gully under a flight path?
Aircraft were observed below 3,000 ft over about 80% of Ferntree Gully, and over about 92% 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 2,500 ft. At the busiest point in the suburb about 1 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 Ferntree Gully?
The dominant planning zone in Ferntree Gully is Neighbourhood Residential Zone (NRZ4), though the suburb also includes Neighbourhood Residential Zone (NRZ1) and Public Park and Recreation Zone (PPRZ).
Does Ferntree Gully have heritage-listed places?
Ferntree Gully has 17 heritage-listed places on record.
What is the typical lot size in Ferntree Gully?
Across 13,700 surveyed parcels in Ferntree Gully, the median lot size is about 725 m². There are also 5,311 registered easements mapped in the suburb.
Does Ferntree Gully have a train station?
Yes - Ferntree Gully has 1 train station: Ferntree Gully Station. It is also served by 135 bus stops.
What is the population of Ferntree Gully?
At the 2021 Census Ferntree Gully had 27,398 usual residents, with a median age of 40 and an average household size of 2.6 people. The wider Ferntree Gully - North statistical area, which contains Ferntree Gully, went from 13,461 people in 2001 to 14,538 in 2025, up 8%.
Is Ferntree Gully an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Ferntree Gully scores 1005 and sits in decile 7 of 10 nationally and decile 6 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Ferntree Gully?
Median household income in Ferntree Gully was $1,770 a week at the 2021 Census, against $1,915 for the typical suburb in Knox. Median rent was $386 a week and the median mortgage repayment $1,918 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Knoxfield | 2.8 km | 10% | 10% |
| Upper Ferntree Gully | 3.0 km | 7% | 82% |
| Tremont Yarra Ranges |
3.1 km | <1% | 100% |
| Boronia | 3.7 km | 4% | 17% |
| Upwey Yarra Ranges |
4.5 km | 3% | 100% |
| Bayswater | 4.6 km | 16% | 10% |
| Ferny Creek Yarra Ranges |
4.7 km | Not mapped | 100% |
| The Basin | 4.8 km | 1% | 82% |
| Wantirna South | 5.5 km | 13% | 39% |
| Scoresby | 5.6 km | 37% | 46% |