Grandchester flood map & planning overlays
A planning-constraint profile of Grandchester
(Ipswich City, QLD) - 57.65 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
57.65 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Grandchester's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Grandchester properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 238 Grandchester properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 238 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Grandchester.
Grandchester flood history and overland flow
These are suburb-wide totals across 238 analysed properties. They show how common each mapped category is across Grandchester; they do not identify or describe any individual property.
Recorded historical flood mapping
99 analysed properties intersect at least one mapped historical event extent.
- Historic Flood 2011: 99
Source: Ipswich City Council flood mapping, aggregated by LayeredGeo. Categories are only shown where at least five analysed properties share them. An address-level check is still required to determine whether a particular lot is mapped.
Grandchester at a glance
Schools in and near Grandchester
Public school-location data shows availability across the suburb. These figures do not rate schools and do not assign a particular address to a catchment.
Inside the suburb boundary
1 school providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: 2.39 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 Grandchester is zoned
Selling in Grandchester? 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 57.65 km², Grandchester is highly constrained by planning overlays. About 14% of the suburb sits within a mapped flood overlay, and 90% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural. The terrain is gently undulating, and the median lot measures about 45,235 m² across 347 parcels.
Who lives in Grandchester
Census 2021 figures published by the ABS for the Grandchester 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 953, and decile 5 within Queensland. The national average is 1000.
Age profile
Share of Grandchester's 467 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Rosewood, the wider ABS statistical area containing Grandchester. There is no annual population series published at suburb level, so this describes the surrounding area rather than Grandchester itself.
10,905 in 2001 to 16,825 in 2025, up 54%.
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.
Grandchester property market snapshot
Queensland Government publishes this as a SA2 market series for Rosewood, the wider statistical area containing Grandchester. It is not a valuation and is not specific to this suburb or any individual property.
House sales
Median sale price from 315 sales over 12 months to March 2026.
Unit sales
Median sale price from 13 sales over 12 months to March 2026.
Source: Queensland Government Statistician's Office (QGSO). View the source profile. The same SA2 figure can appear on several suburb pages within that statistical area.
Grandchester 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 |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
| Market statistics | Available at SA2 level | Queensland Government Statistician's Office (QGSO) |
Profile last materially updated 19 September 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 Grandchester 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.
Published flood models are held over parts of Grandchester. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
The Terrain Report shows the fall of the block - contours, cross sections and a 3D model of the lot (+$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 Grandchester lot.
See what's in the $9 report →Grandchester planning - frequently asked
Is Grandchester flood-prone?
About 14% of Grandchester falls within a mapped flood overlay, against the council-wide suburb average of 44%. Across the suburb, 48% of the 238 properties we analysed carry some level of mapped flood risk, including 87 rated high risk or historically affected.
Is Grandchester bushfire-prone?
Around 90% of Grandchester is mapped as bushfire-prone, compared with a Ipswich City average of 51%.
What is the zoning in Grandchester?
The dominant planning zone in Grandchester is Rural, though the suburb also includes Conservation and Tourism.
Does Grandchester have heritage-listed places?
Grandchester has 4 heritage-listed places on record.
Is Grandchester hilly or flat?
Grandchester is gently undulating: the median ground slope is about 6%, and 11% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 76 m to 195 m AHD across the suburb.
What is the typical lot size in Grandchester?
Across 347 surveyed parcels in Grandchester, the median lot size is about 45,235 m². There are also 40 registered easements mapped in the suburb.
Does Grandchester have a train station?
There is no train station inside Grandchester itself. The suburb is served by 4 bus stops.
What is the population of Grandchester?
At the 2021 Census Grandchester had 467 usual residents, with a median age of 45 and an average household size of 2.6 people. The wider Rosewood statistical area, which contains Grandchester, went from 10,905 people in 2001 to 16,825 in 2025, up 54%.
Is Grandchester an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Grandchester scores 953 and sits in decile 4 of 10 nationally and decile 5 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Grandchester?
Median household income in Grandchester was $1,687 a week at the 2021 Census, against $1,643 for the typical suburb in Ipswich City. Median rent was $250 a week and the median mortgage repayment $1,517 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Laidley Lockyer Valley Regional |
5.2 km | 0% | 53% |
| Summerholm Lockyer Valley Regional |
6.2 km | 0% | 75% |
| Laidley South Lockyer Valley Regional |
6.5 km | 0% | 52% |
| Calvert | 6.6 km | 29% | 64% |
| Lower Mount Walker | 7.4 km | 26% | 34% |
| Laidley North Lockyer Valley Regional |
8.4 km | Not mapped | 36% |
| Mulgowie Lockyer Valley Regional |
9.4 km | 0% | 73% |
| Laidley Heights Lockyer Valley Regional |
9.6 km | Not mapped | 40% |
| Laidley Creek West Lockyer Valley Regional |
9.6 km | Not mapped | 42% |
| Woolshed | 10.1 km | 6% | 96% |