Diamond Beach zoning & planning overlays
A planning-constraint profile of Diamond Beach
(Mid-Coast, NSW) - 10.5 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 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
10.5 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 Diamond Beach'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
Aircraft noise and flight paths over Diamond Beach
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
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
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.
Diamond Beach at a glance
How Diamond Beach is zoned
Buying in Diamond Beach? 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 10.5 km², Diamond Beach 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, 77% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 642 m² across 849 parcels.
Who lives in Diamond Beach
Census 2021 figures published by the ABS for the Diamond Beach 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 997, and decile 5 within New South Wales. The national average is 1000.
Age profile
Share of Diamond Beach's 1,012 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Old Bar - Manning Point - Red Head, the wider ABS statistical area containing Diamond Beach. There is no annual population series published at suburb level, so this describes the surrounding area rather than Diamond Beach itself.
7,700 in 2001 to 13,450 in 2025, up 75%.
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 Beach 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 | 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 Diamond Beach 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 Diamond Beach lot.
See what's in the $9 report →Diamond Beach planning - frequently asked
Is Diamond Beach flood-prone?
We don't yet hold flood mapping covering Diamond Beach, 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. Mid-Coast is the authority to check for flood mapping in this area.
Is Diamond Beach bushfire-prone?
Around 77% of Diamond Beach is mapped as bushfire-prone, compared with a Mid-Coast average of 94%.
Is Diamond Beach under a flight path?
No aircraft were observed over Diamond Beach in the period sampled (4 Sep 2026 to 2 Oct 2026). 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 Diamond Beach?
The dominant planning zone in Diamond Beach is National Parks and Nature Reserves, though the suburb also includes Large Lot Residential and Environmental Conservation.
Does Diamond Beach have heritage-listed places?
Diamond Beach has 1 heritage-listed place on record.
What is the typical lot size in Diamond Beach?
Across 849 surveyed parcels in Diamond Beach, the median lot size is about 642 m². There are also 1 registered easements mapped in the suburb.
Does Diamond Beach have a train station?
There is no train station inside Diamond Beach itself. The suburb is served by 34 bus stops.
What is the population of Diamond Beach?
At the 2021 Census Diamond Beach had 1,012 usual residents, with a median age of 50 and an average household size of 2.4 people. The wider Old Bar - Manning Point - Red Head statistical area, which contains Diamond Beach, went from 7,700 people in 2001 to 13,450 in 2025, up 75%.
Is Diamond Beach an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Diamond Beach scores 997 and sits in decile 6 of 10 nationally and decile 5 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Diamond Beach?
Median household income in Diamond Beach was $1,331 a week at the 2021 Census, against $1,204 for the typical suburb in Mid-Coast. Median rent was $400 a week and the median mortgage repayment $1,658 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Saltwater | 2.5 km | Not mapped | 98% |
| Red Head | 3.0 km | Not mapped | 78% |
| Tallwoods Village | 3.8 km | Not mapped | 46% |
| Rainbow Flat | 3.9 km | Not mapped | 98% |
| Black Head | 4.6 km | Not mapped | 84% |
| Wallabi Point | 5.1 km | Not mapped | 92% |
| Hallidays Point | 5.7 km | Not mapped | 86% |
| Koorainghat | 5.7 km | Not mapped | 100% |
| Old Bar | 7.9 km | Not mapped | 67% |
| Darawank | 9.5 km | Not mapped | 96% |