Montacute flood map & planning overlays
A planning-constraint profile of Montacute
(Adelaide Hills Council, SA) - 29.48 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
29.48 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Montacute'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 Montacute
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled 4 Sep to 26 Sep 2026
typical observed square 0 a day
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.
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.
Montacute at a glance
How Montacute is zoned
Selling in Montacute? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 29.48 km², Montacute is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is Conservation. The median lot measures about 51,545 m² across 227 parcels.
Who lives in Montacute
Census 2021 figures published by the ABS for the Montacute 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 1087, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Montacute's 332 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Uraidla - Summertown, the wider ABS statistical area containing Montacute. There is no annual population series published at suburb level, so this describes the surrounding area rather than Montacute itself.
5,256 in 2001 to 6,484 in 2025, up 23%.
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.
Montacute 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 | the South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, 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 26 September 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 Montacute 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.
Aircraft have been seen below 3,000 ft over about 40% of Montacute. 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 an indicative AS 2870 site class for a Montacute lot.
See what's in the $9 report →Montacute planning - frequently asked
Is Montacute flood-prone?
Flood mapping covers Montacute and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Montacute bushfire-prone?
Around 100% of Montacute is mapped as bushfire-prone, compared with a Adelaide Hills Council average of 100%.
Is Montacute under a flight path?
Aircraft were observed below 3,000 ft over about 40% of Montacute, and over about 62% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 1,000 ft, with an average of 3,500 ft. At the busiest point in the suburb about 3 aircraft a day were recorded passing over one 500 m square. 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 Montacute?
The dominant planning zone in Montacute is Conservation, though the suburb also includes Productive Rural Landscape and Hills Face.
Does Montacute have heritage-listed places?
Montacute has 9 heritage-listed places on record.
What is the typical lot size in Montacute?
Across 227 surveyed parcels in Montacute, the median lot size is about 51,545 m².
What is the population of Montacute?
At the 2021 Census Montacute had 332 usual residents, with a median age of 46 and an average household size of 2.8 people. The wider Uraidla - Summertown statistical area, which contains Montacute, went from 5,256 people in 2001 to 6,484 in 2025, up 23%.
Is Montacute an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Montacute scores 1087 and sits in decile 10 of 10 nationally and decile 10 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Montacute?
Median household income in Montacute was $1,850 a week at the 2021 Census, against $2,089 for the typical suburb in Adelaide Hills Council. Median rent was $370 a week and the median mortgage repayment $2,221 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Castambul | 1.6 km | 0% | 100% |
| Cherryville | 3.3 km | 0% | 100% |
| Norton Summit | 4.2 km | 0% | 100% |
| Paracombe | 4.4 km | 3% | 100% |
| Marble Hill | 4.5 km | 0% | 100% |
| Athelstone Campbelltown City Council |
4.9 km | 4% | 67% |
| Highbury City of Tea Tree Gully |
5.1 km | 17% | 66% |
| Woodforde | 5.2 km | 0% | 97% |
| Vista City of Tea Tree Gully |
5.8 km | 14% | 99% |
| Basket Range | 5.9 km | 0% | 100% |