Yarramundi flood map & planning overlays
A planning-constraint profile of Yarramundi
(Hawkesbury, NSW) - 32.33 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
32.33 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Yarramundi'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 Yarramundi
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
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.
Yarramundi at a glance
How Yarramundi is zoned
Buying in Yarramundi? 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 32.33 km², Yarramundi is highly constrained by planning overlays. About 11% of the suburb sits within a mapped flood overlay, and 98% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 5,727 m² across 310 parcels.
Who lives in Yarramundi
Census 2021 figures published by the ABS for the Yarramundi suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 1077, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Yarramundi's 829 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Blue Mountains - North, the wider ABS statistical area containing Yarramundi. There is no annual population series published at suburb level, so this describes the surrounding area rather than Yarramundi itself.
27 in 2001 to 9 in 2025, down 67%.
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.
Yarramundi 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 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 Yarramundi 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 28% of Yarramundi. 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 Yarramundi. 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 Yarramundi lot.
See what's in the $9 report →Yarramundi planning - frequently asked
Is Yarramundi flood-prone?
About 11% of Yarramundi falls within a mapped flood overlay, against the council-wide suburb average of 24%. Published flood models are held over parts of Yarramundi; the free check on the Flood Model Report page says whether one reaches a given address.
Is Yarramundi bushfire-prone?
Around 98% of Yarramundi is mapped as bushfire-prone, compared with a Hawkesbury average of 84%.
Is Yarramundi under a flight path?
Aircraft were observed below 3,000 ft over about 28% of Yarramundi, and over about 51% 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 3,000 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 Yarramundi?
The dominant planning zone in Yarramundi is National Parks and Nature Reserves, though the suburb also includes Environmental Living and Primary Production.
Does Yarramundi have heritage-listed places?
Yarramundi has 3 heritage-listed places on record.
What is the typical lot size in Yarramundi?
Across 310 surveyed parcels in Yarramundi, the median lot size is about 5,727 m².
Does Yarramundi have a train station?
There is no train station inside Yarramundi itself. The suburb is served by 4 bus stops.
What is the population of Yarramundi?
At the 2021 Census Yarramundi had 829 usual residents, with a median age of 41 and an average household size of 3.3 people. The wider Blue Mountains - North statistical area, which contains Yarramundi, went from 27 people in 2001 to 9 in 2025, down 67%.
Is Yarramundi an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Yarramundi scores 1077 and sits in decile 10 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 Yarramundi?
Median household income in Yarramundi was $2,829 a week at the 2021 Census, against $2,160 for the typical suburb in Hawkesbury. Median rent was $660 a week and the median mortgage repayment $2,383 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Hawkesbury Heights Blue Mountains |
2.6 km | <1% | 100% |
| Winmalee Blue Mountains |
4.1 km | 0% | 92% |
| Yellow Rock Blue Mountains |
5.1 km | 3% | 99% |
| Castlereagh Penrith |
5.6 km | 46% | 94% |
| Grose Wold | 6.6 km | 15% | 100% |
| Agnes Banks Penrith |
7.2 km | 46% | 76% |
| Grose Vale | 7.6 km | 0% | 100% |
| Sun Valley Blue Mountains |
7.7 km | Not mapped | 99% |
| Bowen Mountain | 7.8 km | 0% | 100% |
| Springwood Blue Mountains |
8.0 km | 0% | 94% |