Cambrian Hill flood map & planning overlays
Cambrian Hill sits on 2 ha rural living lots, median 39.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Cambrian Hill
(Golden Plains, VIC) - 10.57 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
10.57 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Cambrian Hill'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 Cambrian Hill
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
Night movements: observed, lowest 7,500 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.
Cambrian Hill at a glance
How Cambrian Hill is zoned
Selling in Cambrian Hill? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 10.57 km², Cambrian Hill is highly constrained by planning overlays. About 4% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural Living Zone (RLZ1). The median lot measures about 24,557 m² across 193 parcels.
Who lives in Cambrian Hill
Census 2021 figures published by the ABS for the Cambrian Hill 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 996, and decile 5 within Victoria. The national average is 1000.
Age profile
Share of Cambrian Hill's 292 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Smythes Creek, the wider ABS statistical area containing Cambrian Hill. There is no annual population series published at suburb level, so this describes the surrounding area rather than Cambrian Hill itself.
3,317 in 2001 to 4,250 in 2025, up 28%.
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.
Cambrian Hill 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 Cambrian Hill 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 9% of Cambrian Hill. 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 Cambrian Hill lot.
Cambrian Hill planning - frequently asked
Is Cambrian Hill flood-prone?
About 4% of Cambrian Hill falls within a mapped flood overlay, against the council-wide suburb average of 6%.
Is Cambrian Hill bushfire-prone?
Around 100% of Cambrian Hill is mapped as bushfire-prone, compared with a Golden Plains average of 100%.
Is Cambrian Hill under a flight path?
Aircraft were observed below 3,000 ft over about 9% of Cambrian Hill, and over about 50% 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 2,000 ft, with an average of 4,500 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 Cambrian Hill?
The dominant planning zone in Cambrian Hill is Rural Living Zone (RLZ1), though the suburb also includes Rural Activity Zone (RAZ1) and Low Density Residential Zone (LDRZ1).
Does Cambrian Hill have heritage-listed places?
Cambrian Hill has 4 heritage-listed places on record.
What is the typical lot size in Cambrian Hill?
Across 193 surveyed parcels in Cambrian Hill, the median lot size is about 24,557 m². There are also 133 registered easements mapped in the suburb.
What is the population of Cambrian Hill?
At the 2021 Census Cambrian Hill had 292 usual residents, with a median age of 39 and an average household size of 3.2 people. The wider Smythes Creek statistical area, which contains Cambrian Hill, went from 3,317 people in 2001 to 4,250 in 2025, up 28%.
Is Cambrian Hill an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Cambrian Hill scores 996 and sits in decile 6 of 10 nationally and decile 5 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Cambrian Hill?
Median household income in Cambrian Hill was $2,042 a week at the 2021 Census, against $1,748 for the typical suburb in Golden Plains. Median rent was $260 a week and the median mortgage repayment $1,742 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Magpie Ballarat |
2.5 km | Not mapped | 100% |
| Bonshaw Ballarat |
3.7 km | Not mapped | 77% |
| Sebastopol Ballarat |
4.2 km | 3% | 45% |
| Scotchmans Lead Ballarat |
4.3 km | 3% | 100% |
| Ross Creek | 5.1 km | <1% | 100% |
| Smythes Creek | 5.8 km | <1% | 98% |
| Napoleons | 6.0 km | 10% | 100% |
| Delacombe Ballarat |
6.0 km | 1% | 1% |
| Mount Clear Ballarat |
6.1 km | 2% | 98% |
| Mount Helen Ballarat |
6.3 km | <1% | 100% |