South Turramurra flood map & planning overlays

A planning-constraint profile of South Turramurra (Ku-Ring-Gai, NSW) - 3.07 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 schematicSouth Turramurra

Constraint readout

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

Flood overlay 0%

below council avg (3%) · #16 of 16 mapped council suburbs

Modelled flood depth held over parts of South Turramurra

Bushfire-prone 67%

1.4× council avg (46%) · #5 of 17 mapped council suburbs

Environmental50%

1.6× council avg (31%) · #5 of 17 in council

Heritage sites 0 Aircraft seen below 3,000 ft 65% Mostly Environmental Conservation Bushfire 5th most affected of 17 →

Elevation hillshade with street names, clipped to South Turramurra'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 South Turramurra

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

100%

of the suburb, at or below 10,000 ft

Below 3,000 ft

65%

of the suburb's area

Lowest measured

1,000 ft

averaging 3,000 ft

Busiest square

~19 a day

2 a day below 3,000 ft · ±20%
typical observed square 11 a day

Night movements: observed, lowest 8,000 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.

South Turramurra at a glance

Parcels 1,306 Median lot 962 m² Mapped easements 7 Bus stops 46

How South Turramurra is zoned

Environmental Conservation 39%

Low Density Residential 37%

National Parks and Nature Reserves 11%

Environmental Living 8%

Public Recreation 4%

Infrastructure 1%

Buying in South Turramurra? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.

Across its 3.07 km², South Turramurra is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 67% is flagged bushfire-prone. The dominant land-use zone is Environmental Conservation. The median lot measures about 962 m² across 1,306 parcels.

Who lives in South Turramurra

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

Population

3,208

usual residents, 2021

Median age

years

Median household income

$3,447

per week, Ku-Ring-Gai suburb typical $3,189

Median rent

$795

per week, Ku-Ring-Gai suburb typical $688

Median mortgage

$3,500

per month

Household size

3.1

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 10

most disadvantagedleast disadvantaged

Score 1173, and decile 10 within New South Wales. The national average is 1000.

Relative disadvantage (IRSD) Decile 10

most disadvantagedleast disadvantaged

Age profile

Share of South Turramurra's 3,208 residents in each ABS age band.

0-4 5.3%

5-14 16.6%

15-19 8.5%

20-24 5.5%

25-34 4.3%

35-44 12.9%

45-54 17.6%

55-64 12.0%

65-74 8.1%

75-84 6.4%

85+ 2.8%

Population trend, 2001 to 2025

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

17,826 in 2001 to 20,593 in 2025, up 16%.

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.

South Turramurra 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	NSW Government spatial services, NSW ePlanning and published council flood studies
Bushfire-prone mapping	Mapped	NSW Government spatial services, NSW ePlanning and published council flood studies
Zoning	Mapped	NSW Government spatial services, NSW ePlanning and published council flood studies
Heritage and environment	Mapped where published	NSW Government spatial services, NSW ePlanning and published council flood studies
Aircraft noise contours (ANEF)	Not held	NSW Government spatial services, NSW ePlanning and published council flood studies, 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 South Turramurra 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 65% of South Turramurra. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.

Published flood models are held over parts of South Turramurra. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.

Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a South Turramurra lot.

See what's in the $9 report →

South Turramurra planning - frequently asked

Is South Turramurra flood-prone?

Flood mapping covers South Turramurra and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 3%). Published flood models are held over parts of South Turramurra; the free check on the Flood Model Report page says whether one reaches a given address.

Is South Turramurra bushfire-prone?

Around 67% of South Turramurra is mapped as bushfire-prone, compared with a Ku-Ring-Gai average of 46%.

Is South Turramurra under a flight path?

Aircraft were observed below 3,000 ft over about 65% of South Turramurra, and over about 100% 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 1,000 ft, with an average of 3,000 ft. At the busiest point in the suburb about 19 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 South Turramurra?

The dominant planning zone in South Turramurra is Environmental Conservation, though the suburb also includes Low Density Residential and National Parks and Nature Reserves.

Does South Turramurra have heritage-listed places?

No heritage-listed places are on record within South Turramurra.

What is the typical lot size in South Turramurra?

Across 1,306 surveyed parcels in South Turramurra, the median lot size is about 962 m². There are also 7 registered easements mapped in the suburb.

Does South Turramurra have a train station?

There is no train station inside South Turramurra itself. The suburb is served by 46 bus stops.

What is the population of South Turramurra?

At the 2021 Census South Turramurra had 3,208 usual residents, with a median age of 42 and an average household size of 3.1 people. The wider Turramurra statistical area, which contains South Turramurra, went from 17,826 people in 2001 to 20,593 in 2025, up 16%.

Is South Turramurra an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), South Turramurra scores 1173 and sits in decile 10 of 10 nationally and decile 10 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in South Turramurra?

Median household income in South Turramurra was $3,447 a week at the 2021 Census, against $3,189 for the typical suburb in Ku-Ring-Gai. Median rent was $795 a week and the median mortgage repayment $3,500 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
North Epping Hornsby	1.5 km	0%	47%
West Pymble	2.3 km	1%	54%
Turramurra	2.6 km	2%	27%
Marsfield Ryde	2.9 km	0%	26%
Warrawee	2.9 km	3%	2%
Cheltenham Hornsby	2.9 km	0%	44%
Pymble	3.1 km	2%	18%
Wahroonga	3.2 km	<1%	30%
Macquarie Park Ryde	3.2 km	0%	37%
Normanhurst Hornsby	3.4 km	0%	31%

See all Ku-Ring-Gai suburb profiles →