Areas / Colac Otway / Alvie

Alvie flood map & planning overlays

Alvie: 2 ha farm lots, 92% bushfire, 16.5% 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 Alvie (Colac Otway, VIC) - 27.53 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 Alvie'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 Alvie

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
41%
of the suburb, at or below 10,000 ft
Below 3,000 ft
19%
of the suburb's area
Lowest measured
1,000 ft
averaging 3,500 ft
How often
not established
aircraft were seen, but not often enough to put a rate on

Night movements: observed, lowest 3,000 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.

Alvie at a glance

Parcels 212 Median lot 21,561 m² Mapped easements 185 Bus stops 1

How Alvie is zoned

Farming Zone (FZ) 85%
Public Conservation and Resource Zone (PCRZ) 14%
Public Park and Recreation Zone (PPRZ) 0%
Township Zone (TZ) 0%
Public Use Zone (PUZ2) 0%
Public Use Zone (PUZ1) 0%

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

Across its 27.53 km², Alvie is highly constrained by planning overlays. About 16% of the suburb sits within a mapped flood overlay, and 92% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Farming Zone (FZ). The median lot measures about 21,561 m² across 212 parcels.

Who lives in Alvie

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

Population
141
usual residents, 2021
Median age
47
years
Median household income
$1,100
per week, Colac Otway suburb typical $1,443
Median rent
$250
per week, Colac Otway suburb typical $239
Median mortgage
$867
per month
Household size
2.4
people, average

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 4
most disadvantagedleast disadvantaged

Score 952, and decile 3 within Victoria. The national average is 1000.

Relative disadvantage (IRSD) Decile 3
most disadvantagedleast disadvantaged

Age profile

Share of Alvie's 141 residents in each ABS age band.

0-4 9.9%
5-14 9.2%
15-19 5.6%
20-24 5.6%
25-34 9.9%
35-44 7.7%
45-54 10.6%
55-64 26.1%
65-74 8.5%
75-84 2.8%
85+ 4.2%

Population trend, 2001 to 2025

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

5,829 in 2001 to 5,670 in 2025, down 3%.

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.

Alvie 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 Alvie 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 19% of Alvie. 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 Alvie lot.

Alvie planning - frequently asked

Is Alvie flood-prone?

About 16% of Alvie falls within a mapped flood overlay, against the council-wide suburb average of 12%.

Is Alvie bushfire-prone?

Around 92% of Alvie is mapped as bushfire-prone, compared with a Colac Otway average of 97%.

Is Alvie under a flight path?

Aircraft were observed below 3,000 ft over about 19% of Alvie, and over about 41% 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 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 Alvie?

The dominant planning zone in Alvie is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ) and Public Park and Recreation Zone (PPRZ).

Does Alvie have heritage-listed places?

Alvie has 3 heritage-listed places on record.

What is the typical lot size in Alvie?

Across 212 surveyed parcels in Alvie, the median lot size is about 21,561 m². There are also 185 registered easements mapped in the suburb.

Does Alvie have a train station?

There is no train station inside Alvie itself. The suburb is served by 1 bus stop.

What is the population of Alvie?

At the 2021 Census Alvie had 141 usual residents, with a median age of 47 and an average household size of 2.4 people. The wider Colac Surrounds statistical area, which contains Alvie, went from 5,829 people in 2001 to 5,670 in 2025, down 3%.

Is Alvie an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Alvie scores 952 and sits in decile 4 of 10 nationally and decile 3 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Alvie?

Median household income in Alvie was $1,100 a week at the 2021 Census, against $1,443 for the typical suburb in Colac Otway. Median rent was $250 a week and the median mortgage repayment $867 a month.

Compare nearby suburbs

Nearby suburbDistanceFlood mappedBushfire-prone
Dreeite South 4.6 km 14% 90%
Coragulac 5.0 km <1% 100%
Corunnun 5.1 km 10% 100%
Warrion 5.4 km <1% 100%
Cororooke 7.3 km 2% 100%
Wool Wool
Corangamite		 7.4 km 83% 31%
Balintore 8.3 km 26% 100%
Dreeite 10.3 km 43% 66%
Nalangil 10.6 km 25% 98%
Ondit 11.1 km 26% 94%

See all Colac Otway suburb profiles →