Coldstream flood map & planning overlays
Coldstream logs 30 flights a day, most in Yarra Ranges, and 27.1% flood.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Coldstream
(Yarra Ranges, VIC) - 55.82 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
55.82 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Coldstream'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 Coldstream
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.
Coldstream at a glance
How Coldstream is zoned
Selling in Coldstream? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 55.82 km², Coldstream is highly constrained by planning overlays. About 27% of the suburb sits within a mapped flood overlay, and 95% is flagged bushfire-prone. There are 12 heritage-listed sites on record, and the dominant land-use zone is Green Wedge Zone (GWZ4). The median lot measures about 936 m² across 1,051 parcels.
Who lives in Coldstream
Census 2021 figures published by the ABS for the Coldstream 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 1000, and decile 6 within Victoria. The national average is 1000.
Age profile
Share of Coldstream's 2,199 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lilydale - Coldstream, the wider ABS statistical area containing Coldstream. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coldstream itself.
16,176 in 2001 to 20,905 in 2025, up 29%.
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.
Coldstream 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 Coldstream 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 98% of Coldstream. 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 Coldstream lot.
Coldstream planning - frequently asked
Is Coldstream flood-prone?
About 27% of Coldstream falls within a mapped flood overlay, against the council-wide suburb average of 7%.
Is Coldstream bushfire-prone?
Around 95% of Coldstream is mapped as bushfire-prone, compared with a Yarra Ranges average of 95%.
Is Coldstream under a flight path?
Aircraft were observed below 3,000 ft over about 98% of Coldstream, and over about 99% 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 2,000 ft. At the busiest point in the suburb about 31 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 Coldstream?
The dominant planning zone in Coldstream is Green Wedge Zone (GWZ4), though the suburb also includes Green Wedge Zone (GWZ2) and Transport Zone (TRZ2).
Does Coldstream have heritage-listed places?
Coldstream has 12 heritage-listed places on record.
What is the typical lot size in Coldstream?
Across 1,051 surveyed parcels in Coldstream, the median lot size is about 936 m². There are also 742 registered easements mapped in the suburb.
Does Coldstream have a train station?
There is no train station inside Coldstream itself. The suburb is served by 15 bus stops.
What is the population of Coldstream?
At the 2021 Census Coldstream had 2,199 usual residents, with a median age of 37 and an average household size of 2.8 people. The wider Lilydale - Coldstream statistical area, which contains Coldstream, went from 16,176 people in 2001 to 20,905 in 2025, up 29%.
Is Coldstream an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coldstream scores 1000 and sits in decile 6 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 Coldstream?
Median household income in Coldstream was $1,913 a week at the 2021 Census, against $1,999 for the typical suburb in Yarra Ranges. Median rent was $371 a week and the median mortgage repayment $1,809 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Yering | 3.2 km | 71% | 100% |
| Chirnside Park | 4.9 km | 9% | 77% |
| Bend Of Islands Nillumbik |
5.7 km | 7% | 100% |
| Christmas Hills Nillumbik |
6.0 km | 4% | 100% |
| Lilydale | 7.0 km | 9% | 69% |
| Yarra Glen | 7.0 km | 10% | 97% |
| Wonga Park Manningham |
7.6 km | 9% | 99% |
| Watsons Creek Nillumbik |
8.5 km | Not mapped | 100% |
| Mooroolbark | 8.6 km | 6% | 25% |
| Croydon North Maroondah |
9.2 km | 3% | 21% |