Werombi flood map & planning overlays

A planning-constraint profile of Werombi (Wollondilly, NSW) - 31.98 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.

Planning schematicWerombi

Constraint readout

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

Flood overlay 0%

below council avg (0%) · #4 of 22 mapped council suburbs

Bushfire-prone 93%

≈ council avg (93%) · #24 of 39 mapped council suburbs

Environmental16%

below council avg (38%) · #22 of 39 in council

Heritage sites 4 Noise corridor 2% Aircraft noise (ANEF) 2% Aircraft seen below 3,000 ft 9% Mostly Environmental Living Bushfire 24th most affected of 39 →

Elevation hillshade with street names, clipped to Werombi's boundary, with the flood, bushfire and environmental overlays drawn on top. Amber hatching is the published aircraft noise (ANEF) contour. 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 Werombi

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.

Inside an aircraft noise contour

2% of the suburb's land sits inside a published ANEF or airport-environs contour. Contours vary street by street, so whether a particular lot is inside one needs a property-level check.

Highest contour present

ANEF 20

Under AS 2021, land between ANEF 20 and 25 is conditionally acceptable for houses, usually with noise attenuation built in. The contour is a forecast, not a measurement at any one house.

Contours held

NSW planning (EPI) airport noise

Observed overflight - sampled 4 Sep to 2 Oct 2026

Under observed aircraft

43%

of the suburb, at or below 10,000 ft

Below 3,000 ft

of the suburb's area

Lowest measured

1,000 ft

averaging 4,000 ft

How often

not established

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

Night movements: observed, lowest 2,500 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.

Werombi at a glance

Parcels 346 Median lot 40,513 m² Mapped easements 8 Bus stops 20

How Werombi is zoned

Environmental Living 44%

Rural Landscape 32%

National Parks and Nature Reserves 16%

Primary Production 8%

Infrastructure 0%

Environmental Conservation 0%

Buying in Werombi? 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 31.98 km², Werombi is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 93% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Environmental Living. The median lot measures about 40,513 m² across 346 parcels.

Who lives in Werombi

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

Population

941

usual residents, 2021

Median age

years

Median household income

$2,511

per week, Wollondilly suburb typical $2,250

Median rent

$550

per week, Wollondilly suburb typical $430

Median mortgage

$2,972

per month

Household size

3.3

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 1052, and decile 8 within New South Wales. The national average is 1000.

Relative disadvantage (IRSD) Decile 9

most disadvantagedleast disadvantaged

Age profile

Share of Werombi's 941 residents in each ABS age band.

0-4 4.7%

5-14 15.3%

15-19 8.0%

20-24 6.9%

25-34 8.2%

35-44 12.3%

45-54 15.8%

55-64 12.8%

65-74 10.7%

75-84 4.9%

85+ 0.5%

Population trend, 2001 to 2025

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

7,821 in 2001 to 10,429 in 2025, up 33%.

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.

Werombi 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)	Inside a held contour	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 Werombi 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 9% of Werombi. 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 Werombi lot.

See what's in the $9 report →

Werombi planning - frequently asked

Is Werombi flood-prone?

Flood mapping covers Werombi and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 0%).

Is Werombi bushfire-prone?

Around 93% of Werombi is mapped as bushfire-prone, compared with a Wollondilly average of 93%.

Is Werombi affected by aircraft noise?

About 2% of Werombi sits inside a published aircraft noise contour, and the highest contour present is ANEF 20 - under AS 2021, land between ANEF 20 and 25 is conditionally acceptable for houses, usually with noise attenuation in the build. ANEF contours are forecasts published per airport and used to control noise-sensitive development; they are not a measurement at any one house, and a property can sit under a flight path and outside every contour.

Is Werombi under a flight path?

Aircraft were observed below 3,000 ft over about 9% of Werombi, and over about 43% 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 1,000 ft, with an average of 4,000 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 Werombi?

The dominant planning zone in Werombi is Environmental Living, though the suburb also includes Rural Landscape and National Parks and Nature Reserves.

Does Werombi have heritage-listed places?

Werombi has 4 heritage-listed places on record.

What is the typical lot size in Werombi?

Across 346 surveyed parcels in Werombi, the median lot size is about 40,513 m². There are also 8 registered easements mapped in the suburb.

Does Werombi have a train station?

There is no train station inside Werombi itself. The suburb is served by 20 bus stops.

What is the population of Werombi?

At the 2021 Census Werombi had 941 usual residents, with a median age of 40 and an average household size of 3.3 people. The wider The Oaks - Oakdale statistical area, which contains Werombi, went from 7,821 people in 2001 to 10,429 in 2025, up 33%.

Is Werombi an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Werombi scores 1052 and sits in decile 9 of 10 nationally and decile 8 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Werombi?

Median household income in Werombi was $2,511 a week at the 2021 Census, against $2,250 for the typical suburb in Wollondilly. Median rent was $550 a week and the median mortgage repayment $2,972 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Orangeville	5.1 km	0%	97%
Theresa Park	5.6 km	0%	74%
Silverdale	7.1 km	<1%	92%
Brownlow Hill	8.5 km	0%	87%
Glenmore	9.8 km	Not mapped	100%
Ellis Lane Camden	10.3 km	0%	30%
Brereton	10.6 km	<1%	97%
Cobbitty Camden	10.6 km	<1%	84%
Greendale Liverpool	10.7 km	14%	96%
Warragamba	11.1 km	2%	88%

See all Wollondilly suburb profiles →