Gembrook flood map & planning overlays
Gembrook's 77 heritage places trail only Emerald in Cardinia.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Gembrook
(Cardinia, VIC) - 201.83 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
201.83 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Gembrook'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 Gembrook
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 2,500 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.
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.
Gembrook at a glance
How Gembrook is zoned
Selling in Gembrook? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 201.83 km², Gembrook is highly constrained by planning overlays. About 2% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 77 heritage-listed sites on record, and the dominant land-use zone is Public Conservation and Resource Zone (PCRZ). The median lot measures about 4,537 m² across 1,304 parcels.
Who lives in Gembrook
Census 2021 figures published by the ABS for the Gembrook 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 1014, and decile 6 within Victoria. The national average is 1000.
Age profile
Share of Gembrook's 2,559 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Emerald - Cockatoo, the wider ABS statistical area containing Gembrook. There is no annual population series published at suburb level, so this describes the surrounding area rather than Gembrook itself.
16,964 in 2001 to 19,043 in 2025, up 12%.
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.
Gembrook 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 Gembrook 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 17% of Gembrook. 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 Gembrook lot.
Gembrook planning - frequently asked
Is Gembrook flood-prone?
About 2% of Gembrook falls within a mapped flood overlay, against the council-wide suburb average of 48%.
Is Gembrook bushfire-prone?
Around 100% of Gembrook is mapped as bushfire-prone, compared with a Cardinia average of 97%.
Is Gembrook under a flight path?
Aircraft were observed below 3,000 ft over about 17% of Gembrook, and over about 47% 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 1,000 ft, with an average of 4,000 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 Gembrook?
The dominant planning zone in Gembrook is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Rural Conservation Zone (RCZ1) and Green Wedge Zone (GWZ2).
Does Gembrook have heritage-listed places?
Gembrook has 77 heritage-listed places on record.
What is the typical lot size in Gembrook?
Across 1,304 surveyed parcels in Gembrook, the median lot size is about 4,537 m². There are also 692 registered easements mapped in the suburb.
Does Gembrook have a train station?
There is no train station inside Gembrook itself. The suburb is served by 17 bus stops.
What is the population of Gembrook?
At the 2021 Census Gembrook had 2,559 usual residents, with a median age of 41 and an average household size of 2.8 people. The wider Emerald - Cockatoo statistical area, which contains Gembrook, went from 16,964 people in 2001 to 19,043 in 2025, up 12%.
Is Gembrook an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Gembrook scores 1014 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 Gembrook?
Median household income in Gembrook was $2,002 a week at the 2021 Census, against $1,976 for the typical suburb in Cardinia. Median rent was $360 a week and the median mortgage repayment $1,907 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Beenak Yarra Ranges |
4.5 km | Not mapped | 100% |
| Tynong North | 9.8 km | 4% | 100% |
| Hoddles Creek Yarra Ranges |
10.5 km | Not mapped | 100% |
| Maryknoll | 10.7 km | <1% | 100% |
| Three Bridges Yarra Ranges |
10.8 km | 2% | 100% |
| Nangana | 11.1 km | Not mapped | 100% |
| Gilderoy Yarra Ranges |
11.1 km | 4% | 100% |
| Gladysdale Yarra Ranges |
11.1 km | 3% | 100% |
| Mount Burnett | 11.2 km | <1% | 100% |
| Cockatoo | 11.3 km | Not mapped | 100% |