Diehard zoning & planning overlays
A planning-constraint profile of Diehard
(Glen Innes Severn, NSW) - 87.88 km², mapped from live council and
state overlay data. This suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
87.88 km² - this suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Elevation hillshade with street names, clipped to Diehard's boundary, with the bushfire and environmental overlays drawn on top. No flood layer is drawn because we hold no flood mapping for this area.
Nearby suburbs, nearest first
Diehard at a glance
How Diehard is zoned
Buying in Diehard? 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 87.88 km², Diehard is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 100% is flagged bushfire-prone. There are 15 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 32,190 m² across 50 parcels.
Who lives in Diehard
Census 2021 figures published by the ABS for the Diehard 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 976, and decile 4 within New South Wales. The national average is 1000.
Age profile
Share of Diehard's 62 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Glen Innes, the wider ABS statistical area containing Diehard. There is no annual population series published at suburb level, so this describes the surrounding area rather than Diehard itself.
8,818 in 2001 to 9,069 in 2025, up 3%.
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.
Diehard data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Not 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 | Watched, not yet sampled here | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 26 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 Diehard 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.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Diehard lot.
See what's in the $9 report →Diehard planning - frequently asked
Is Diehard flood-prone?
We don't yet hold flood mapping covering Diehard, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Glen Innes Severn is the authority to check for flood mapping in this area.
Is Diehard bushfire-prone?
Around 100% of Diehard is mapped as bushfire-prone, compared with a Glen Innes Severn average of 100%.
What is the zoning in Diehard?
The dominant planning zone in Diehard is National Parks and Nature Reserves, though the suburb also includes Primary Production and Forestry.
Does Diehard have heritage-listed places?
Diehard has 15 heritage-listed places on record.
What is the typical lot size in Diehard?
Across 50 surveyed parcels in Diehard, the median lot size is about 32,190 m². There are also 1 registered easements mapped in the suburb.
What is the population of Diehard?
At the 2021 Census Diehard had 62 usual residents, with a median age of 51 and an average household size of 1.4 people. The wider Glen Innes statistical area, which contains Diehard, went from 8,818 people in 2001 to 9,069 in 2025, up 3%.
Is Diehard an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Diehard scores 976 and sits in decile 5 of 10 nationally and decile 4 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Diehard?
Median household income in Diehard was $420 a week at the 2021 Census, against $1,333 for the typical suburb in Glen Innes Severn. Median rent was $20 a week.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Bald Nob | 10.2 km | Not mapped | 100% |
| Kingsgate | 10.7 km | 0% | 100% |
| Glen Elgin | 14.5 km | Not mapped | 100% |
| Shannon Vale | 19.9 km | Not mapped | 100% |
| Red Range | 20.4 km | Not mapped | 100% |
| Dundee | 22.1 km | Not mapped | 100% |
| Newton Boyd Clarence Valley |
23.6 km | 0% | 100% |
| Pinkett | 24.7 km | Not mapped | 100% |
| Moggs Swamp | 25.6 km | 0% | 100% |
| Glen Nevis | 27.6 km | 0% | 100% |