Glen Allyn flood map & planning overlays
Glen Allyn is 43.2% flood-mapped, 5th on the Tablelands.
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A planning-constraint profile of Glen Allyn
(Tablelands Regional, QLD) - 40.41 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 5 November 2026.
Constraint readout
40.41 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Glen Allyn's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Glen Allyn
The ANEF contour is a published planning forecast and observed overflight is what a sampled tracking feed recorded - neither describes any individual property.
Observed overflight - sampled to
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
How this is measured
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 Allyn at a glance
Schools in and near Glen Allyn
Public school-location data shows availability across the suburb; it does not rate schools or assign any individual address to a catchment.
Inside the suburb boundary
0 schools providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 0.03 km from the suburb boundary
Secondary: 2.83 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time; use the official catchment finder for a specific address.
How Glen Allyn is zoned
Selling in Glen Allyn? The lot-level zone is the zoning Part 3 of Queensland's Form 2 seller disclosure statement asks for - see our Form 2 planning data guide.
Across its 40.41 km², Glen Allyn is highly constrained by planning overlays. About 43% of the suburb sits within a mapped flood overlay, and 1% is flagged bushfire-prone. The dominant land-use zone is Rural. The median lot measures about 292,511 m² across 111 parcels.
Who lives in Glen Allyn
Census 2021 figures published by the ABS for the Glen Allyn 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 983, and decile 7 within Queensland. The national average is 1000.
Age profile
Share of Glen Allyn's 109 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Malanda - Yungaburra, the wider ABS statistical area containing Glen Allyn. There is no annual population series published at suburb level, so this describes the surrounding area rather than Glen Allyn itself.
7,816 in 2001 to 9,700 in 2025, up 24%.
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 Allyn 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 | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 5 November 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 Allyn 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.
See what's in the $9 report →Published flood models are held over parts of Glen Allyn. 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 the indicative soil reactivity range to expect for a Glen Allyn lot.
Glen Allyn planning - frequently asked
Is Glen Allyn flood-prone?
About 43% of Glen Allyn falls within a mapped flood overlay, against the council-wide suburb average of 36%. Published flood models are held over parts of Glen Allyn; the free check on the Flood Model Report page says whether one reaches a given address.
Is Glen Allyn bushfire-prone?
Around 1% of Glen Allyn is mapped as bushfire-prone, compared with a Tablelands Regional average of 40%.
Is Glen Allyn under a flight path?
No aircraft were observed over Glen Allyn in the period sampled (recent weeks to now). Sampling is intermittent, so that is a floor rather than proof that none fly over. 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 Allyn?
The dominant planning zone in Glen Allyn is Rural, though the suburb also includes Rural residential and Conservation.
Does Glen Allyn have heritage-listed places?
No heritage-listed places are on record within Glen Allyn.
What is the typical lot size in Glen Allyn?
Across 111 surveyed parcels in Glen Allyn, the median lot size is about 292,511 m². There are also 15 registered easements mapped in the suburb.
What is the population of Glen Allyn?
At the 2021 Census Glen Allyn had 109 usual residents, with a median age of 52 and an average household size of 2.5 people. The wider Malanda - Yungaburra statistical area, which contains Glen Allyn, went from 7,816 people in 2001 to 9,700 in 2025, up 24%.
Is Glen Allyn an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Glen Allyn scores 983 and sits in decile 5 of 10 nationally and decile 7 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Glen Allyn?
Median household income in Glen Allyn was $1,375 a week at the 2021 Census, against $1,156 for the typical suburb in Tablelands Regional. Median rent was $298 a week and the median mortgage repayment $1,618 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| North Johnstone | 5.0 km | 39% | 0% |
| Butchers Creek | 5.2 km | 34% | 11% |
| Topaz | 6.6 km | 35% | 1% |
| Malanda | 8.6 km | 43% | <1% |
| Tarzali | 8.7 km | 41% | 1% |
| Lake Eacham | 8.9 km | 29% | 4% |
| Jaggan | 9.9 km | 39% | 1% |
| Kureen | 10.1 km | 31% | 0% |
| Peeramon | 10.5 km | 32% | 2% |
| Wooroonooran | 12.6 km | 28% | 10% |