Paechtown flood map & planning overlays
A planning-constraint profile of Paechtown
(Mount Barker District Council, SA) - 5.78 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
5.78 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Paechtown'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 Paechtown
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
Night movements: observed, lowest 6,500 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.
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.
Paechtown at a glance
How Paechtown is zoned
Selling in Paechtown? 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 5.78 km², Paechtown 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 6 heritage-listed sites on record, and the dominant land-use zone is Productive Rural Landscape. The median lot measures about 32,408 m² across 85 parcels.
Who lives in Paechtown
Census 2021 figures published by the ABS for the Paechtown 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 1105, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Paechtown's 204 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Hahndorf - Echunga, the wider ABS statistical area containing Paechtown. There is no annual population series published at suburb level, so this describes the surrounding area rather than Paechtown itself.
4,080 in 2001 to 4,698 in 2025, up 15%.
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.
Paechtown 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 Paechtown 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 12% of Paechtown. 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 Paechtown lot.
See what's in the $9 report →Paechtown planning - frequently asked
Is Paechtown flood-prone?
Flood mapping covers Paechtown and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 0%).
Is Paechtown bushfire-prone?
Around 100% of Paechtown is mapped as bushfire-prone, compared with a Mount Barker District Council average of 100%.
Is Paechtown under a flight path?
Aircraft were observed below 3,000 ft over about 12% of Paechtown, and over about 55% 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 2,000 ft, with an average of 5,000 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 Paechtown?
The dominant planning zone in Paechtown is Productive Rural Landscape, though the suburb also includes Rural and Conservation.
Does Paechtown have heritage-listed places?
Paechtown has 6 heritage-listed places on record.
What is the typical lot size in Paechtown?
Across 85 surveyed parcels in Paechtown, the median lot size is about 32,408 m².
What is the population of Paechtown?
At the 2021 Census Paechtown had 204 usual residents, with a median age of 51 and an average household size of 2.8 people. The wider Hahndorf - Echunga statistical area, which contains Paechtown, went from 4,080 people in 2001 to 4,698 in 2025, up 15%.
Is Paechtown an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Paechtown scores 1105 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 Paechtown?
Median household income in Paechtown was $2,386 a week at the 2021 Census, against $1,812 for the typical suburb in Mount Barker District Council. Median rent was $480 a week and the median mortgage repayment $2,250 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Hahndorf | 2.2 km | 3% | 100% |
| Totness | 2.5 km | 0% | 100% |
| Biggs Flat | 3.8 km | 0% | 100% |
| Littlehampton | 4.5 km | 0% | 100% |
| Echunga | 5.0 km | <1% | 100% |
| Verdun Adelaide Hills Council |
5.2 km | 11% | 100% |
| Mylor Adelaide Hills Council |
5.2 km | 5% | 100% |
| Mount Barker | 5.5 km | 6% | 100% |
| Mount Barker Junction | 5.5 km | 0% | 100% |
| Chapel Hill | 5.9 km | 0% | 100% |