Penneshaw flood map & planning overlays

A planning-constraint profile of Penneshaw (Kangaroo Island Council, SA) - 4.97 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.

Planning schematicPenneshaw

Constraint readout

4.97 km² - this suburb is highly constrained by planning overlays.

Flood overlay 3%

below council avg (7%) · #17 of 49 mapped council suburbs

Bushfire-prone 98%

≈ council avg (96%) · #34 of 49 mapped council suburbs

Environmental9%

below council avg (38%) · #41 of 49 in council

Heritage sites 18 Character <1% Aircraft seen below 3,000 ft 4% Mostly Rural Living Flood 17th most affected of 49 → Bushfire 34th most affected of 49 →

Elevation hillshade with street names, clipped to Penneshaw'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 Penneshaw

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

Under observed aircraft

of the suburb, at or below 10,000 ft

Below 3,000 ft

of the suburb's area

Lowest measured

2,500 ft

averaging 5,000 ft

How often

not established

aircraft were seen, but not often enough to put a rate on

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.

Penneshaw at a glance

Parcels 510 Median lot 1,011 m² Bus stops 3 Ferry terminal 1

How Penneshaw is zoned

Rural Living 43%

Rural 24%

Neighbourhood 15%

Recreation 6%

Open Space 5%

Coastal Waters and Offshore Islands 2%

Selling in Penneshaw? 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 4.97 km², Penneshaw is highly constrained by planning overlays. About 3% of the suburb sits within a mapped flood overlay, and 98% is flagged bushfire-prone. There are 18 heritage-listed sites on record, and the dominant land-use zone is Rural Living. The median lot measures about 1,011 m² across 510 parcels.

Who lives in Penneshaw

Census 2021 figures published by the ABS for the Penneshaw suburb boundary itself, not a wider region.

Population

269

usual residents, 2021

Median age

years

Median household income

$961

per week, Kangaroo Island Council suburb typical $1,249

Median rent

$215

per week, Kangaroo Island Council suburb typical $200

Median mortgage

$1,400

per month

Household size

1.9

people, average

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 4

most disadvantagedleast disadvantaged

Score 968, and decile 5 within South Australia. The national average is 1000.

Relative disadvantage (IRSD) Decile 5

most disadvantagedleast disadvantaged

Age profile

Share of Penneshaw's 269 residents in each ABS age band.

0-4 1.1%

5-14 8.7%

15-19 1.9%

20-24 4.2%

25-34 8.0%

35-44 11.8%

45-54 14.8%

55-64 14.1%

65-74 19.8%

75-84 11.8%

85+ 3.8%

Population trend, 2001 to 2025

Estimated resident population of Kangaroo Island, the wider ABS statistical area containing Penneshaw. There is no annual population series published at suburb level, so this describes the surrounding area rather than Penneshaw itself.

4,227 in 2001 to 5,212 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.

Penneshaw 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 Penneshaw 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 Penneshaw. 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 Penneshaw lot.

See what's in the $9 report →

Penneshaw planning - frequently asked

Is Penneshaw flood-prone?

About 3% of Penneshaw falls within a mapped flood overlay, against the council-wide suburb average of 7%.

Is Penneshaw bushfire-prone?

Around 98% of Penneshaw is mapped as bushfire-prone, compared with a Kangaroo Island Council average of 96%.

Is Penneshaw under a flight path?

Aircraft were observed below 3,000 ft over about 4% of Penneshaw, in the period sampled (4 Sep 2026 to 26 Sep 2026). The lowest measured aircraft was at 2,500 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 Penneshaw?

The dominant planning zone in Penneshaw is Rural Living, though the suburb also includes Rural and Neighbourhood.

Does Penneshaw have heritage-listed places?

Penneshaw has 18 heritage-listed places on record.

What is the typical lot size in Penneshaw?

Across 510 surveyed parcels in Penneshaw, the median lot size is about 1,011 m².

Does Penneshaw have a train station?

There is no train station inside Penneshaw itself. The suburb is served by 3 bus stops and 1 ferry terminal.

What is the population of Penneshaw?

At the 2021 Census Penneshaw had 269 usual residents, with a median age of 54 and an average household size of 1.9 people. The wider Kangaroo Island statistical area, which contains Penneshaw, went from 4,227 people in 2001 to 5,212 in 2025, up 23%.

Is Penneshaw an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Penneshaw scores 968 and sits in decile 4 of 10 nationally and decile 5 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Penneshaw?

Median household income in Penneshaw was $961 a week at the 2021 Census, against $1,249 for the typical suburb in Kangaroo Island Council. Median rent was $215 a week and the median mortgage repayment $1,400 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Ironstone	3.7 km	<1%	100%
Kangaroo Head	3.8 km	2%	99%
Dudley East	6.0 km	0%	100%
American Beach	7.2 km	14%	93%
Cuttlefish Bay	8.6 km	<1%	100%
Baudin Beach	9.5 km	22%	83%
Dudley West	11.4 km	0%	100%
Brown Beach	11.6 km	20%	87%
Antechamber Bay	12.2 km	17%	99%
Willson River	13.5 km	0%	99%

See all Kangaroo Island Council suburb profiles →