Areas / Colac Otway / Glenaire

Glenaire flood map & planning overlays

Glenaire keeps 18,440 m² conservation lots, 5% flood.

A planning-constraint profile of Glenaire (Colac Otway, VIC) - 104.03 km², mapped from live council and state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.

Elevation hillshade with street names, clipped to Glenaire'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 Glenaire

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

Under observed aircraft
6%
of the suburb, at or below 10,000 ft
Below 3,000 ft
1%
of the suburb's area
Lowest measured
2,000 ft
averaging 4,000 ft
How often
not established
aircraft were seen, but not often enough to put a rate on

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.

Glenaire at a glance

Parcels 236 Median lot 18,440 m² Mapped easements 75

How Glenaire is zoned

Public Conservation and Resource Zone (PCRZ) 82%
Rural Conservation Zone (RCZ) 16%
Farming Zone (FZ) 2%
Transport Zone (TRZ2) 0%

Selling in Glenaire? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.

Across its 104.03 km², Glenaire is highly constrained by planning overlays. About 5% 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 Public Conservation and Resource Zone (PCRZ). The median lot measures about 18,440 m² across 236 parcels.

Who lives in Glenaire

Census 2021 figures published by the ABS for the Glenaire suburb boundary itself, not a wider region.

Population
33
usual residents, 2021

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 8
most disadvantagedleast disadvantaged

Score 1023, and decile 7 within Victoria. The national average is 1000.

Relative disadvantage (IRSD) Decile 6
most disadvantagedleast disadvantaged

Population trend, 2001 to 2025

Estimated resident population of Otway, the wider ABS statistical area containing Glenaire. There is no annual population series published at suburb level, so this describes the surrounding area rather than Glenaire 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.

Glenaire data sources and coverage

“Not mapped” means we hold no source layer for this suburb - never an all-clear.

DatasetCoveragePublisher
Flood mappingMappedVicmap Planning and Victorian Government spatial services
Bushfire-prone mappingMappedVicmap Planning and Victorian Government spatial services
ZoningMappedVicmap Planning and Victorian Government spatial services
Heritage and environmentMapped where publishedVicmap Planning and Victorian Government spatial services
Aircraft noise contours (ANEF)Not heldVicmap Planning and Victorian Government spatial services, Defence
Observed flight pathsObservedadsb.lol, under the Open Database License
DemographicsAvailableAustralian 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 Glenaire 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 →

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 Glenaire lot.

Glenaire planning - frequently asked

Is Glenaire flood-prone?

About 5% of Glenaire falls within a mapped flood overlay, against the council-wide suburb average of 12%.

Is Glenaire bushfire-prone?

Around 100% of Glenaire is mapped as bushfire-prone, compared with a Colac Otway average of 97%.

Is Glenaire under a flight path?

Aircraft were observed over about 6% of Glenaire in the period sampled, but only above 3,000 ft - the lowest measured was 2,000 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 Glenaire?

The dominant planning zone in Glenaire is Public Conservation and Resource Zone (PCRZ), though the suburb also includes Rural Conservation Zone (RCZ) and Farming Zone (FZ).

Does Glenaire have heritage-listed places?

Glenaire has 4 heritage-listed places on record.

What is the typical lot size in Glenaire?

Across 236 surveyed parcels in Glenaire, the median lot size is about 18,440 m². There are also 75 registered easements mapped in the suburb.

Is Glenaire an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Glenaire scores 1023 and sits in decile 8 of 10 nationally and decile 7 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).

Compare nearby suburbs

Nearby suburbDistanceFlood mappedBushfire-prone
Hordern Vale 6.2 km 19% 100%
Johanna 6.2 km 3% 100%
Cape Otway 9.9 km <1% 100%
Aire Valley 10.3 km Not mapped 100%
Wyelangta 10.7 km 0% 100%
Lavers Hill 11.4 km 0% 100%
Weeaproinah 13.1 km Not mapped 100%
Yuulong 14.2 km <1% 100%
Ferguson 14.6 km Not mapped 100%
Apollo Bay 15.0 km 3% 98%

See all Colac Otway suburb profiles →