Grasmere flood map & planning overlays
A planning-constraint profile of Grasmere
(Camden, NSW) - 5.62 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
5.62 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Grasmere'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 Grasmere
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 2 a day
Night movements: observed, lowest 3,000 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.
Grasmere at a glance
How Grasmere is zoned
Buying in Grasmere? 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 5.62 km², Grasmere is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 61% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Large Lot Residential. The median lot measures about 4,016 m² across 491 parcels.
Who lives in Grasmere
Census 2021 figures published by the ABS for the Grasmere 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 1011, and decile 6 within New South Wales. The national average is 1000.
Age profile
Share of Grasmere's 2,105 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Camden - Ellis Lane, the wider ABS statistical area containing Grasmere. There is no annual population series published at suburb level, so this describes the surrounding area rather than Grasmere itself.
10,550 in 2001 to 13,365 in 2025, up 27%.
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.
Grasmere 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 Grasmere 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 97% of Grasmere. 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 Grasmere lot.
See what's in the $9 report →Grasmere planning - frequently asked
Is Grasmere flood-prone?
Flood mapping covers Grasmere and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 8%).
Is Grasmere bushfire-prone?
Around 61% of Grasmere is mapped as bushfire-prone, compared with a Camden average of 44%.
Is Grasmere under a flight path?
Aircraft were observed below 3,000 ft over about 97% of Grasmere, 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 1,000 ft. At the busiest point in the suburb about 105 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 Grasmere?
The dominant planning zone in Grasmere is Large Lot Residential, though the suburb also includes Primary Production and Infrastructure.
Does Grasmere have heritage-listed places?
Grasmere has 3 heritage-listed places on record.
What is the typical lot size in Grasmere?
Across 491 surveyed parcels in Grasmere, the median lot size is about 4,016 m². There are also 3 registered easements mapped in the suburb.
Does Grasmere have a train station?
There is no train station inside Grasmere itself. The suburb is served by 24 bus stops.
What is the population of Grasmere?
At the 2021 Census Grasmere had 2,105 usual residents, with a median age of 59 and an average household size of 2.6 people. The wider Camden - Ellis Lane statistical area, which contains Grasmere, went from 10,550 people in 2001 to 13,365 in 2025, up 27%.
Is Grasmere an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Grasmere scores 1011 and sits in decile 7 of 10 nationally and decile 6 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Grasmere?
Median household income in Grasmere was $1,652 a week at the 2021 Census, against $2,294 for the typical suburb in Camden. Median rent was $116 a week and the median mortgage repayment $2,831 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Camden | 2.0 km | 0% | 52% |
| Ellis Lane | 2.5 km | 0% | 30% |
| Bickley Vale | 2.6 km | 0% | 94% |
| Brownlow Hill Wollondilly |
3.0 km | 0% | 87% |
| Camden South | 4.0 km | 0% | 45% |
| Elderslie | 4.3 km | 23% | 16% |
| Cawdor Wollondilly |
4.4 km | 0% | 98% |
| Kirkham | 4.5 km | 64% | 79% |
| Spring Farm | 5.2 km | 0% | 37% |
| Camden Park Wollondilly |
6.0 km | 0% | 93% |