Brimpaen flood map & planning overlays
Environmental significance overlay covers 85.3% of Brimpaen, 2nd in Horsham.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
A planning-constraint profile of Brimpaen
(Horsham, VIC) - 246.62 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Constraint readout
246.62 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Brimpaen'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 Brimpaen
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.
Brimpaen at a glance
How Brimpaen is zoned
Selling in Brimpaen? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 246.62 km², Brimpaen is highly constrained by planning overlays. About 2% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Farming Zone (FZ). The median lot measures about 593,733 m² across 253 parcels.
Who lives in Brimpaen
Census 2021 figures published by the ABS for the Brimpaen 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 1068, and decile 10 within Victoria. The national average is 1000.
Age profile
Share of Brimpaen's 80 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Horsham Surrounds, the wider ABS statistical area containing Brimpaen. There is no annual population series published at suburb level, so this describes the surrounding area rather than Brimpaen itself.
3,565 in 2001 to 3,399 in 2025, down 5%.
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.
Brimpaen 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 Brimpaen 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 Brimpaen lot.
Brimpaen planning - frequently asked
Is Brimpaen flood-prone?
About 2% of Brimpaen falls within a mapped flood overlay, against the council-wide suburb average of 16%.
Is Brimpaen bushfire-prone?
Around 100% of Brimpaen is mapped as bushfire-prone, compared with a Horsham average of 98%.
Is Brimpaen under a flight path?
Aircraft were observed over about 2% of Brimpaen in the period sampled, but only above 3,000 ft - the lowest measured was 6,000 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 Brimpaen?
The dominant planning zone in Brimpaen is Farming Zone (FZ), though the suburb also includes Public Conservation and Resource Zone (PCRZ) and Transport Zone (TRZ2).
Does Brimpaen have heritage-listed places?
Brimpaen has 1 heritage-listed place on record.
What is the typical lot size in Brimpaen?
Across 253 surveyed parcels in Brimpaen, the median lot size is about 593,733 m². There are also 229 registered easements mapped in the suburb.
What is the population of Brimpaen?
At the 2021 Census Brimpaen had 80 usual residents, with a median age of 49 and an average household size of 2.7 people. The wider Horsham Surrounds statistical area, which contains Brimpaen, went from 3,565 people in 2001 to 3,399 in 2025, down 5%.
Is Brimpaen an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Brimpaen scores 1068 and sits in decile 9 of 10 nationally and decile 10 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Brimpaen?
Median household income in Brimpaen was $1,437 a week at the 2021 Census, against $1,625 for the typical suburb in Horsham. Median rent was $115 a week and the median mortgage repayment $1,127 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Cherrypool Southern Grampians |
7.7 km | 0% | 100% |
| Mockinya | 11.6 km | 7% | 100% |
| Zumsteins Northern Grampians |
16.8 km | 3% | 100% |
| Telangatuk East | 17.2 km | <1% | 100% |
| Glenisla Southern Grampians |
18.1 km | <1% | 100% |
| Nurrabiel | 18.4 km | 6% | 100% |
| Wartook Northern Grampians |
19.3 km | 6% | 100% |
| Wonwondah | 19.7 km | 16% | 100% |
| Laharum | 20.1 km | 10% | 100% |
| Roses Gap Northern Grampians |
25.0 km | 6% | 100% |