Dalyenong flood map & planning overlays
Dalyenong is 25 ha farm country with a 6.8% flood share.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Dalyenong
(Northern Grampians, VIC) - 96.03 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 25 October 2026.
Constraint readout
96.03 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Dalyenong'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 Dalyenong
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.
Dalyenong at a glance
How Dalyenong is zoned
Selling in Dalyenong? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 96.03 km², Dalyenong is highly constrained by planning overlays. About 7% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. The dominant land-use zone is Farming Zone (FZ). The median lot measures about 247,817 m² across 183 parcels.
Dalyenong 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 | Not available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 25 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 Dalyenong 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 Dalyenong lot.
Dalyenong planning - frequently asked
Is Dalyenong flood-prone?
About 7% of Dalyenong falls within a mapped flood overlay, against the council-wide suburb average of 27%.
Is Dalyenong bushfire-prone?
Around 100% of Dalyenong is mapped as bushfire-prone, compared with a Northern Grampians average of 100%.
Is Dalyenong under a flight path?
Aircraft were observed over about 2% of Dalyenong in the period sampled, but only above 3,000 ft - the lowest measured was 6,500 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 Dalyenong?
The dominant planning zone in Dalyenong is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ).
Does Dalyenong have heritage-listed places?
No heritage-listed places are on record within Dalyenong.
What is the typical lot size in Dalyenong?
Across 183 surveyed parcels in Dalyenong, the median lot size is about 247,817 m².
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Moyreisk | 8.7 km | 17% | 100% |
| Emu | 8.9 km | 15% | 100% |
| Archdale Central Goldfields |
9.2 km | 51% | 100% |
| Stuart Mill | 11.8 km | 9% | 100% |
| Carapooee | 11.9 km | 24% | 100% |
| Archdale Junction Central Goldfields |
13.3 km | 52% | 100% |
| Bealiba Central Goldfields |
13.3 km | 19% | 100% |
| Redbank | 15.0 km | 8% | 100% |
| Natte Yallock Pyrenees |
16.1 km | 57% | 100% |
| Kooreh | 17.3 km | 41% | 100% |