Kiama Downs zoning & planning overlays

A planning-constraint profile of Kiama Downs (Kiama, NSW) - 3.91 km², mapped from live council and state overlay data. This suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Profile updated 3 October 2026.

Suburb-wide figures; the free map shows which overlays touch your lot.

Planning schematicKiama Downs

Constraint readout

3.91 km² - this suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.

Flood overlay Not mapped

No flood mapping held for this area - not an all-clear

Bushfire-prone 38%

below council avg (80%) · #17 of 20 mapped council suburbs

Environmental35%

≈ council avg (44%) · #13 of 20 in council

Heritage sites 7 Aircraft seen below 3,000 ft 91% Mostly Low Density Residential Bushfire 17th most affected of 20 →

Elevation hillshade with street names, clipped to Kiama Downs's boundary, with the bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft. No flood layer is drawn because we hold no flood mapping for this area.

Nearby suburbs, nearest first

Aircraft noise and flight paths over Kiama Downs

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 2 Oct 2026

Under observed aircraft

100%

of the suburb, at or below 10,000 ft

Below 3,000 ft

91%

of the suburb's area

Lowest measured

500 ft

averaging 2,500 ft

Busiest square

~1 a day

1 a day below 3,000 ft · ±23% · area average
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.

Kiama Downs at a glance

Parcels 1,991 Median lot 645 m² Mapped easements 4 Bus stops 79

How Kiama Downs is zoned

Low Density Residential 42%

Environmental Conservation 34%

Public Recreation 16%

Infrastructure 3%

Private Recreation 3%

Environmental Management 1%

Buying in Kiama Downs? 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 3.91 km², Kiama Downs is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 38% is flagged bushfire-prone. There are 7 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 645 m² across 1,991 parcels.

Who lives in Kiama Downs

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

Population

5,087

usual residents, 2021

Median age

years

Median household income

$2,103

per week, Kiama suburb typical $1,941

Median rent

$490

per week, Kiama suburb typical $490

Median mortgage

$2,200

per month

Household size

2.8

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 9

most disadvantagedleast disadvantaged

Score 1062, and decile 9 within New South Wales. The national average is 1000.

Relative disadvantage (IRSD) Decile 9

most disadvantagedleast disadvantaged

Age profile

Share of Kiama Downs's 5,087 residents in each ABS age band.

0-4 5.6%

5-14 13.5%

15-19 6.4%

20-24 4.3%

25-34 8.9%

35-44 12.5%

45-54 13.2%

55-64 14.5%

65-74 14.0%

75-84 5.3%

85+ 1.9%

Population trend, 2001 to 2025

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

6,311 in 2001 to 5,923 in 2025, down 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.

Kiama Downs data sources and coverage

“Not mapped” means we hold no source layer for this suburb - never an all-clear.

Dataset	Coverage	Publisher
Flood mapping	Not 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 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 Kiama Downs 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 91% of Kiama Downs. 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 Kiama Downs lot.

See what's in the $9 report →

Kiama Downs planning - frequently asked

Is Kiama Downs flood-prone?

We don't yet hold flood mapping covering Kiama Downs, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Kiama is the authority to check for flood mapping in this area.

Is Kiama Downs bushfire-prone?

Around 38% of Kiama Downs is mapped as bushfire-prone, compared with a Kiama average of 80%.

Is Kiama Downs under a flight path?

Aircraft were observed below 3,000 ft over about 91% of Kiama Downs, and over about 100% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,500 ft. At the busiest point in the suburb about 1 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 Kiama Downs?

The dominant planning zone in Kiama Downs is Low Density Residential, though the suburb also includes Environmental Conservation and Public Recreation.

Does Kiama Downs have heritage-listed places?

Kiama Downs has 7 heritage-listed places on record.

What is the typical lot size in Kiama Downs?

Across 1,991 surveyed parcels in Kiama Downs, the median lot size is about 645 m². There are also 4 registered easements mapped in the suburb.

Does Kiama Downs have a train station?

There is no train station inside Kiama Downs itself. The suburb is served by 79 bus stops.

What is the population of Kiama Downs?

At the 2021 Census Kiama Downs had 5,087 usual residents, with a median age of 43 and an average household size of 2.8 people. The wider Kiama Downs - Minnamurra statistical area, which contains Kiama Downs, went from 6,311 people in 2001 to 5,923 in 2025, down 6%.

Is Kiama Downs an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Kiama Downs scores 1062 and sits in decile 9 of 10 nationally and decile 9 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Kiama Downs?

Median household income in Kiama Downs was $2,103 a week at the 2021 Census, against $1,941 for the typical suburb in Kiama. Median rent was $490 a week and the median mortgage repayment $2,200 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Bombo	1.7 km	Not mapped	20%
Minnamurra	2.0 km	Not mapped	32%
Dunmore Shellharbour	3.4 km	Not mapped	88%
Kiama	3.5 km	Not mapped	46%
Shell Cove Shellharbour	4.1 km	Not mapped	57%
Jerrara	4.6 km	Not mapped	100%
Croom Shellharbour	5.6 km	Not mapped	93%
Flinders Shellharbour	6.6 km	Not mapped	16%
Kiama Heights	7.0 km	Not mapped	86%
Shellharbour Shellharbour	7.3 km	Not mapped	20%

See all Kiama suburb profiles →