Glen Alpine flood map & planning overlays
A planning-constraint profile of Glen Alpine
(Campbelltown, NSW) - 2.94 km², mapped from live council and
state overlay data. This suburb is relatively unconstrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
2.94 km² - this suburb is relatively unconstrained by planning overlays.
Elevation hillshade with street names, clipped to Glen Alpine'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 Glen Alpine
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: observed, lowest 1,500 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.
Glen Alpine at a glance
How Glen Alpine is zoned
Buying in Glen Alpine? 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 2.94 km², Glen Alpine is relatively unconstrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 9% is flagged bushfire-prone. There are 6 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 845 m² across 1,545 parcels.
Who lives in Glen Alpine
Census 2021 figures published by the ABS for the Glen Alpine 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 1076, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Glen Alpine's 4,429 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Rosemeadow - Glen Alpine, the wider ABS statistical area containing Glen Alpine. There is no annual population series published at suburb level, so this describes the surrounding area rather than Glen Alpine itself.
21,390 in 2001 to 22,758 in 2025, up 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.
Glen Alpine 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 Glen Alpine 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 74% of Glen Alpine. 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 Glen Alpine. 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 Glen Alpine lot.
See what's in the $9 report →Glen Alpine planning - frequently asked
Is Glen Alpine flood-prone?
Flood mapping covers Glen Alpine and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%). Published flood models are held over parts of Glen Alpine; the free check on the Flood Model Report page says whether one reaches a given address.
Is Glen Alpine bushfire-prone?
Around 9% of Glen Alpine is mapped as bushfire-prone, compared with a Campbelltown average of 49%.
Is Glen Alpine under a flight path?
Aircraft were observed below 3,000 ft over about 74% of Glen Alpine, and over about 93% 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 3 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 Glen Alpine?
The dominant planning zone in Glen Alpine is Low Density Residential, though the suburb also includes Environmental Living and Infrastructure.
Does Glen Alpine have heritage-listed places?
Glen Alpine has 6 heritage-listed places on record.
What is the typical lot size in Glen Alpine?
Across 1,545 surveyed parcels in Glen Alpine, the median lot size is about 845 m². There are also 2 registered easements mapped in the suburb.
Does Glen Alpine have a train station?
There is no train station inside Glen Alpine itself. The suburb is served by 74 bus stops.
What is the population of Glen Alpine?
At the 2021 Census Glen Alpine had 4,429 usual residents, with a median age of 43 and an average household size of 3.2 people. The wider Rosemeadow - Glen Alpine statistical area, which contains Glen Alpine, went from 21,390 people in 2001 to 22,758 in 2025, up 6%.
Is Glen Alpine an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Glen Alpine scores 1076 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 Glen Alpine?
Median household income in Glen Alpine was $2,669 a week at the 2021 Census, against $1,797 for the typical suburb in Campbelltown. Median rent was $570 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Ambarvale | 1.5 km | 4% | 1% |
| Englorie Park | 1.5 km | 0% | 14% |
| Rosemeadow | 2.4 km | 14% | 9% |
| Menangle Park | 2.7 km | 0% | 82% |
| Mount Annan Camden |
3.1 km | 3% | 64% |
| Bradbury | 3.3 km | <1% | 6% |
| Blair Athol | 3.4 km | 0% | 24% |
| St Helens Park | 3.6 km | 8% | 73% |
| Blairmount | 4.2 km | 0% | 92% |
| Campbelltown | 4.4 km | 0% | 31% |