Port Arthur flood map & planning overlays
A planning-constraint profile of Port Arthur
(Yorke Peninsula Council, SA) - 39.99 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
39.99 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Port Arthur'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 Port Arthur
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 1 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.
Port Arthur at a glance
How Port Arthur is zoned
Selling in Port Arthur? 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 39.99 km², Port Arthur is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 86% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 491,527 m² across 52 parcels.
Port Arthur 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 | Not 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 Port Arthur 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 54% of Port Arthur. 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 Port Arthur lot.
See what's in the $9 report →Port Arthur planning - frequently asked
Is Port Arthur flood-prone?
Flood mapping covers Port Arthur and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Port Arthur bushfire-prone?
Around 86% of Port Arthur is mapped as bushfire-prone, compared with a Yorke Peninsula Council average of 93%.
Is Port Arthur under a flight path?
Aircraft were observed below 3,000 ft over about 54% of Port Arthur, and over about 90% 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 500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 4 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 Port Arthur?
The dominant planning zone in Port Arthur is Rural, though the suburb also includes Conservation and Coastal Waters and Offshore Islands.
Does Port Arthur have heritage-listed places?
No heritage-listed places are on record within Port Arthur.
What is the typical lot size in Port Arthur?
Across 52 surveyed parcels in Port Arthur, the median lot size is about 491,527 m².
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Kulpara Barunga West Council |
6.1 km | 0% | 100% |
| South Hummocks Barunga West Council |
10.1 km | 0% | 100% |
| Melton Barunga West Council |
10.9 km | 0% | 100% |
| Kainton | 11.0 km | 0% | 97% |
| Beaufort Wakefield Regional Council |
11.0 km | 4% | 100% |
| Clinton | 12.7 km | 0% | 80% |
| Port Wakefield Wakefield Regional Council |
14.0 km | 0% | 77% |
| Nantawarra Wakefield Regional Council |
17.4 km | 0% | 100% |
| Ninnes Barunga West Council |
17.4 km | 0% | 100% |
| Goyder Wakefield Regional Council |
17.8 km | 0% | 100% |