Coromandel Valley flood map & planning overlays
A planning-constraint profile of Coromandel Valley
(City of Onkaparinga, SA) - 4.31 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
4.31 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Coromandel Valley'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 Coromandel Valley
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 3 Oct 2026
typical observed square 0 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Coromandel Valley at a glance
How Coromandel Valley is zoned
Selling in Coromandel Valley? 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 4.31 km², Coromandel Valley is highly constrained by planning overlays. About 4% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 31 heritage-listed sites on record, and the dominant land-use zone is Hills Neighbourhood. The median lot measures about 1,108 m² across 1,776 parcels.
Who lives in Coromandel Valley
Census 2021 figures published by the ABS for the Coromandel Valley 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 1078, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Coromandel Valley's 4,380 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Coromandel Valley, the wider ABS statistical area containing Coromandel Valley. There is no annual population series published at suburb level, so this describes the surrounding area rather than Coromandel Valley itself.
4,181 in 2001 to 4,655 in 2025, up 11%.
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.
Coromandel Valley 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 3 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 Coromandel Valley 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 31% of Coromandel Valley. 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 Coromandel Valley lot.
See what's in the $9 report →Coromandel Valley planning - frequently asked
Is Coromandel Valley flood-prone?
About 4% of Coromandel Valley falls within a mapped flood overlay, against the council-wide suburb average of 4%.
Is Coromandel Valley bushfire-prone?
Around 100% of Coromandel Valley is mapped as bushfire-prone, compared with a City of Onkaparinga average of 69%.
Is Coromandel Valley under a flight path?
Aircraft were observed below 3,000 ft over about 31% of Coromandel Valley, and over about 62% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 4,000 ft. At the busiest point in the suburb about 0 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 Coromandel Valley?
The dominant planning zone in Coromandel Valley is Hills Neighbourhood, though the suburb also includes Hills Face and Open Space.
Does Coromandel Valley have heritage-listed places?
Coromandel Valley has 31 heritage-listed places on record.
What is the typical lot size in Coromandel Valley?
Across 1,776 surveyed parcels in Coromandel Valley, the median lot size is about 1,108 m².
Does Coromandel Valley have a train station?
There is no train station inside Coromandel Valley itself. The suburb is served by 31 bus stops.
What is the population of Coromandel Valley?
At the 2021 Census Coromandel Valley had 4,380 usual residents, with a median age of 41 and an average household size of 2.8 people. The wider Coromandel Valley statistical area, which contains Coromandel Valley, went from 4,181 people in 2001 to 4,655 in 2025, up 11%.
Is Coromandel Valley an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Coromandel Valley scores 1078 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 Coromandel Valley?
Median household income in Coromandel Valley was $2,241 a week at the 2021 Census, against $1,512 for the typical suburb in City of Onkaparinga. Median rent was $420 a week and the median mortgage repayment $1,828 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Craigburn Farm City of Mitcham |
2.0 km | 3% | 100% |
| Coromandel East | 2.2 km | <1% | 100% |
| Hawthorndene City of Mitcham |
2.5 km | 3% | 100% |
| Blackwood City of Mitcham |
2.9 km | 6% | 100% |
| Aberfoyle Park | 3.7 km | 1% | 76% |
| Cherry Gardens | 3.8 km | 0% | 100% |
| Glenalta City of Mitcham |
3.9 km | 8% | 100% |
| Eden Hills City of Mitcham |
3.9 km | 6% | 100% |
| Flagstaff Hill | 3.9 km | 2% | 100% |
| Chandlers Hill | 4.2 km | 0% | 100% |