Diamond Valley flood map & planning overlays
A planning-constraint profile of Diamond Valley
(Sunshine Coast Regional, QLD) - 9.82 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
9.82 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Diamond Valley's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
How common is mapped flood risk across Diamond Valley properties?
Overlay percentages say how much land is constrained; these figures say how many properties are actually touched in a suburb-wide analysis of 206 Diamond Valley properties. No individual property result is identified on this page.
Lot-level readout
Flood-risk rating across all 206 properties
From LayeredGeo's lot-risk engine: council flood overlays, historical flooding and terrain, resolved to each individual lot in Diamond Valley.
Diamond Valley at a glance
Schools in and near Diamond Valley
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
0 schools providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: 1.15 km from the suburb boundary
Secondary: 4.71 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 Diamond Valley is zoned
Selling in Diamond Valley? 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 9.82 km², Diamond Valley is highly constrained by planning overlays. About 5% of the suburb sits within a mapped flood overlay, and 67% is flagged bushfire-prone. The dominant land-use zone is Rural. The terrain is steep, and the median lot measures about 8,093 m² across 207 parcels.
Recent development applications in Diamond Valley
Applications are counted across the whole gazetted suburb from the public Sunshine Coast Council register. No application address or individual property is published here.
Submitted in the past 12 months
The exact total and latest date are suppressed for privacy.
Counts depend on applications that the council publishes and that can be assigned to a suburb. Categories can overlap when one application covers several types. Totals below five and their latest dates are suppressed. Register last synchronised 20 September 2026. Check the official council register.
Who lives in Diamond Valley
Census 2021 figures published by the ABS for the Diamond Valley 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 975, and decile 6 within Queensland. The national average is 1000.
Age profile
Share of Diamond Valley's 489 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Landsborough, the wider ABS statistical area containing Diamond Valley. There is no annual population series published at suburb level, so this describes the surrounding area rather than Diamond Valley itself.
7,248 in 2001 to 21,628 in 2025, up 198%.
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.
Diamond Valley 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 |
| Development applications | Available as suburb totals | Sunshine Coast Council |
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 Diamond Valley 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 Diamond Valley. 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 Diamond Valley lot.
See what's in the $9 report →Diamond Valley planning - frequently asked
Is Diamond Valley flood-prone?
About 5% of Diamond Valley falls within a mapped flood overlay, against the council-wide suburb average of 30%. Across the suburb, 23% of the 206 properties we analysed carry some level of mapped flood risk, including 31 rated high risk or historically affected.
Is Diamond Valley bushfire-prone?
Around 67% of Diamond Valley is mapped as bushfire-prone, compared with a Sunshine Coast Regional average of 38%.
What is the zoning in Diamond Valley?
The dominant planning zone in Diamond Valley is Rural, though the suburb also includes Rural Residential and Environmental Management and Conservation.
Does Diamond Valley have heritage-listed places?
No heritage-listed places are on record within Diamond Valley.
Is Diamond Valley hilly or flat?
Diamond Valley is steep: the median ground slope is about 20%, and 68% of measured points sit on grades of 15% or steeper. Ground level runs from roughly 35 m to 174 m AHD across the suburb.
What is the typical lot size in Diamond Valley?
Across 207 surveyed parcels in Diamond Valley, the median lot size is about 8,093 m². There are also 58 registered easements mapped in the suburb.
What is the population of Diamond Valley?
At the 2021 Census Diamond Valley had 489 usual residents, with a median age of 50 and an average household size of 2.7 people. The wider Landsborough statistical area, which contains Diamond Valley, went from 7,248 people in 2001 to 21,628 in 2025, up 198%.
Is Diamond Valley an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Diamond Valley scores 975 and sits in decile 5 of 10 nationally and decile 6 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Diamond Valley?
Median household income in Diamond Valley was $1,760 a week at the 2021 Census, against $1,677 for the typical suburb in Sunshine Coast Regional. Median rent was $396 a week and the median mortgage repayment $1,950 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Eudlo | 2.8 km | 8% | 65% |
| Mooloolah Valley | 3.5 km | 18% | 48% |
| Bald Knob | 3.9 km | 1% | 31% |
| Balmoral Ridge | 4.5 km | 15% | 49% |
| Landers Shoot | 4.5 km | <1% | 73% |
| Mount Mellum | 6.6 km | <1% | 59% |
| Ilkley | 6.7 km | 5% | 78% |
| North Maleny | 7.4 km | 35% | 41% |
| Palmwoods | 7.4 km | 20% | 43% |
| Montville | 7.6 km | 14% | 68% |