Grose Wold flood map & planning overlays
A planning-constraint profile of Grose Wold
(Hawkesbury, NSW) - 11.35 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
11.35 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Grose Wold'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 Grose Wold
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.
Grose Wold at a glance
How Grose Wold is zoned
Buying in Grose Wold? 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 11.35 km², Grose Wold is highly constrained by planning overlays. About 15% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is Primary Production Small Lots. The median lot measures about 23,818 m² across 234 parcels.
Who lives in Grose Wold
Census 2021 figures published by the ABS for the Grose Wold 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 1066, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Grose Wold's 668 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Kurrajong Heights - Ebenezer, the wider ABS statistical area containing Grose Wold. There is no annual population series published at suburb level, so this describes the surrounding area rather than Grose Wold itself.
21,001 in 2001 to 22,515 in 2025, up 7%.
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.
Grose Wold 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 Grose Wold 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 44% of Grose Wold. 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 Grose Wold. 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 Grose Wold lot.
See what's in the $9 report →Grose Wold planning - frequently asked
Is Grose Wold flood-prone?
About 15% of Grose Wold falls within a mapped flood overlay, against the council-wide suburb average of 24%. Published flood models are held over parts of Grose Wold; the free check on the Flood Model Report page says whether one reaches a given address.
Is Grose Wold bushfire-prone?
Around 100% of Grose Wold is mapped as bushfire-prone, compared with a Hawkesbury average of 84%.
Is Grose Wold under a flight path?
Aircraft were observed below 3,000 ft over about 44% of Grose Wold, and over about 68% 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 Grose Wold?
The dominant planning zone in Grose Wold is Primary Production Small Lots, though the suburb also includes Primary Production and National Parks and Nature Reserves.
Does Grose Wold have heritage-listed places?
Grose Wold has 2 heritage-listed places on record.
What is the typical lot size in Grose Wold?
Across 234 surveyed parcels in Grose Wold, the median lot size is about 23,818 m². There are also 6 registered easements mapped in the suburb.
Does Grose Wold have a train station?
There is no train station inside Grose Wold itself. The suburb is served by 2 bus stops.
What is the population of Grose Wold?
At the 2021 Census Grose Wold had 668 usual residents, with a median age of 42 and an average household size of 3.1 people. The wider Kurrajong Heights - Ebenezer statistical area, which contains Grose Wold, went from 21,001 people in 2001 to 22,515 in 2025, up 7%.
Is Grose Wold an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Grose Wold scores 1066 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 Grose Wold?
Median household income in Grose Wold was $2,409 a week at the 2021 Census, against $2,160 for the typical suburb in Hawkesbury. Median rent was $450 a week and the median mortgage repayment $2,817 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Grose Vale | 1.4 km | 0% | 100% |
| Agnes Banks Penrith |
3.1 km | 46% | 76% |
| North Richmond | 4.9 km | 11% | 83% |
| Hobartville | 5.7 km | 10% | 4% |
| Kurmond | 6.0 km | 0% | 91% |
| Bowen Mountain | 6.0 km | 0% | 100% |
| Richmond Lowlands | 6.5 km | 100% | 89% |
| Yarramundi | 6.6 km | 11% | 98% |
| The Slopes | 7.8 km | 0% | 100% |
| Londonderry Penrith |
7.9 km | 15% | 98% |