Areas / Bass Coast / Dalyston

Dalyston flood map & planning overlays

Dalyston is young (39) and 41.8% flood-mapped.

Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.

A planning-constraint profile of Dalyston (Bass Coast, VIC) - 24.76 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 Dalyston'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 Dalyston

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
47%
of the suburb, at or below 10,000 ft
Below 3,000 ft
30%
of the suburb's area
Lowest measured
500 ft
averaging 2,500 ft
How often
not established
aircraft were seen, but not often enough to put a rate on

Night movements: observed, lowest 1,500 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.

Dalyston at a glance

Parcels 1,246 Median lot 754 m² Mapped easements 222 Bus stops 2

How Dalyston is zoned

Farming Zone (FZ) 88%
Public Conservation and Resource Zone (PCRZ) 6%
Township Zone (TZ) 3%
Public Park and Recreation Zone (PPRZ) 2%
Transport Zone (TRZ2) 1%
Public Use Zone (PUZ2) 0%

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

Across its 24.76 km², Dalyston is highly constrained by planning overlays. About 42% of the suburb sits within a mapped flood overlay, and 98% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is Farming Zone (FZ). The median lot measures about 754 m² across 1,246 parcels.

Who lives in Dalyston

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

Population
843
usual residents, 2021
Median age
39
years
Median household income
$1,352
per week, Bass Coast suburb typical $1,286
Median rent
$280
per week, Bass Coast suburb typical $300
Median mortgage
$1,473
per month
Household size
2.3
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 2
most disadvantagedleast disadvantaged

Score 925, and decile 2 within Victoria. The national average is 1000.

Relative disadvantage (IRSD) Decile 3
most disadvantagedleast disadvantaged

Age profile

Share of Dalyston's 843 residents in each ABS age band.

0-4 6.1%
5-14 13.0%
15-19 4.1%
20-24 5.0%
25-34 14.2%
35-44 14.5%
45-54 11.4%
55-64 15.8%
65-74 12.2%
75-84 3.3%
85+ 0.5%

Population trend, 2001 to 2025

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

17,647 in 2001 to 29,333 in 2025, up 66%.

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.

Dalyston 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 Dalyston 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 30% of Dalyston. 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 Dalyston lot.

Dalyston planning - frequently asked

Is Dalyston flood-prone?

About 42% of Dalyston falls within a mapped flood overlay, against the council-wide suburb average of 15%.

Is Dalyston bushfire-prone?

Around 98% of Dalyston is mapped as bushfire-prone, compared with a Bass Coast average of 93%.

Is Dalyston under a flight path?

Aircraft were observed below 3,000 ft over about 30% of Dalyston, and over about 47% 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 2,500 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 Dalyston?

The dominant planning zone in Dalyston is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ) and Township Zone (TZ).

Does Dalyston have heritage-listed places?

Dalyston has 9 heritage-listed places on record.

What is the typical lot size in Dalyston?

Across 1,246 surveyed parcels in Dalyston, the median lot size is about 754 m². There are also 222 registered easements mapped in the suburb.

Does Dalyston have a train station?

There is no train station inside Dalyston itself. The suburb is served by 2 bus stops.

What is the population of Dalyston?

At the 2021 Census Dalyston had 843 usual residents, with a median age of 39 and an average household size of 2.3 people. The wider Wonthaggi - Inverloch statistical area, which contains Dalyston, went from 17,647 people in 2001 to 29,333 in 2025, up 66%.

Is Dalyston an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Dalyston scores 925 and sits in decile 2 of 10 nationally and decile 2 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Dalyston?

Median household income in Dalyston was $1,352 a week at the 2021 Census, against $1,286 for the typical suburb in Bass Coast. Median rent was $280 a week and the median mortgage repayment $1,473 a month.

Compare nearby suburbs

Nearby suburbDistanceFlood mappedBushfire-prone
Archies Creek 2.7 km 0% 100%
Kilcunda 3.8 km 10% 98%
South Dudley 3.8 km Not mapped 96%
North Wonthaggi 4.2 km 14% 83%
West Creek 5.7 km 29% 100%
Wonthaggi 6.8 km 2% 93%
Woolamai 7.2 km Not mapped 100%
Ryanston 7.5 km <1% 100%
St Clair 9.2 km 34% 100%
Anderson 9.9 km 0% 100%

See all Bass Coast suburb profiles →