Sheaoak Flat flood map & planning overlays
A planning-constraint profile of Sheaoak Flat
(Yorke Peninsula Council, SA) - 10.14 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
10.14 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Sheaoak Flat'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 Sheaoak Flat
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
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.
Sheaoak Flat at a glance
How Sheaoak Flat is zoned
Selling in Sheaoak Flat? 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 10.14 km², Sheaoak Flat is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 94% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 618 m² across 91 parcels.
Who lives in Sheaoak Flat
Census 2021 figures published by the ABS for the Sheaoak Flat 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 971, and decile 5 within South Australia. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Yorke Peninsula - North, the wider ABS statistical area containing Sheaoak Flat. There is no annual population series published at suburb level, so this describes the surrounding area rather than Sheaoak Flat itself.
7,295 in 2001 to 7,755 in 2025, up 6%.
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.
Sheaoak Flat 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 Sheaoak Flat 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 4% of Sheaoak Flat. 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 Sheaoak Flat lot.
See what's in the $9 report →Sheaoak Flat planning - frequently asked
Is Sheaoak Flat flood-prone?
Flood mapping covers Sheaoak Flat and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Sheaoak Flat bushfire-prone?
Around 94% of Sheaoak Flat is mapped as bushfire-prone, compared with a Yorke Peninsula Council average of 93%.
Is Sheaoak Flat under a flight path?
Aircraft were observed below 3,000 ft over about 4% of Sheaoak Flat, and over about 6% 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 500 ft, with an average of 3,500 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 Sheaoak Flat?
The dominant planning zone in Sheaoak Flat is Rural, though the suburb also includes Coastal Waters and Offshore Islands and Rural Living.
Does Sheaoak Flat have heritage-listed places?
No heritage-listed places are on record within Sheaoak Flat.
What is the typical lot size in Sheaoak Flat?
Across 91 surveyed parcels in Sheaoak Flat, the median lot size is about 618 m².
Is Sheaoak Flat an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Sheaoak Flat scores 971 and sits in decile 5 of 10 nationally and decile 5 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Port Julia | 4.6 km | 0% | 99% |
| Black Point | 9.8 km | 0% | 93% |
| Port Vincent | 9.9 km | 3% | 98% |
| Curramulka | 10.5 km | 0% | 100% |
| Pine Point | 12.8 km | 0% | 95% |
| Sandilands | 19.3 km | 0% | 100% |
| Ramsay | 20.0 km | 0% | 100% |
| Rogues Point | 22.0 km | 34% | 44% |
| Stansbury | 23.1 km | 0% | 98% |
| James Well | 23.3 km | 14% | 68% |