Separation Creek flood map & planning overlays
Separation Creek lots average 761 m², 4th-smallest of 71.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Separation Creek
(Colac Otway, VIC) - 42.81 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
42.81 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Separation Creek'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 Separation Creek
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: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Separation Creek at a glance
How Separation Creek is zoned
Selling in Separation Creek? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 42.81 km², Separation Creek is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls 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 Public Conservation and Resource Zone (PCRZ). The median lot measures about 761 m² across 178 parcels.
Who lives in Separation Creek
Census 2021 figures published by the ABS for the Separation Creek 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 1050, and decile 9 within Victoria. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Otway, the wider ABS statistical area containing Separation Creek. There is no annual population series published at suburb level, so this describes the surrounding area rather than Separation Creek itself.
3,452 in 2001 to 3,974 in 2025, up 15%.
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.
Separation Creek 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 Separation Creek 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 2% of Separation Creek. 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 Separation Creek lot.
Separation Creek planning - frequently asked
Is Separation Creek flood-prone?
Flood mapping covers Separation Creek and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 12%).
Is Separation Creek bushfire-prone?
Around 100% of Separation Creek is mapped as bushfire-prone, compared with a Colac Otway average of 97%.
Is Separation Creek under a flight path?
Aircraft were observed below 3,000 ft over about 2% of Separation Creek, and over about 8% 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 3,500 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 Separation Creek?
The dominant planning zone in Separation Creek is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Rural Conservation Zone (RCZ) and Transport Zone (TRZ2).
Does Separation Creek have heritage-listed places?
Separation Creek has 4 heritage-listed places on record.
What is the typical lot size in Separation Creek?
Across 178 surveyed parcels in Separation Creek, the median lot size is about 761 m². There are also 67 registered easements mapped in the suburb.
Is Separation Creek an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Separation Creek scores 1050 and sits in decile 9 of 10 nationally and decile 9 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Wye River | 4.8 km | <1% | 100% |
| Lorne Surf Coast |
8.8 km | <1% | 100% |
| Kennett River | 9.1 km | <1% | 100% |
| Grey River | 10.4 km | <1% | 100% |
| Wongarra | 11.8 km | <1% | 100% |
| Benwerrin Surf Coast |
12.0 km | Not mapped | 100% |
| Mount Sabine | 13.0 km | Not mapped | 100% |
| Sugarloaf | 13.3 km | 1% | 100% |
| Barwon Downs | 14.0 km | 4% | 100% |
| Barramunga | 15.5 km | 1% | 100% |