Sun Valley zoning & planning overlays
A planning-constraint profile of Sun Valley
(Blue Mountains, NSW) - 2.33 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
2.33 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 Sun Valley's boundary, with the bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft. No flood layer is drawn because we hold no flood mapping for this area.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Sun Valley
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
typical observed square 0 a day
Night movements: observed, lowest 6,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Sun Valley at a glance
How Sun Valley is zoned
Buying in Sun Valley? 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 2.33 km², Sun Valley 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, 99% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural Landscape. The median lot measures about 21,020 m² across 98 parcels.
Who lives in Sun Valley
Census 2021 figures published by the ABS for the Sun 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 1092, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Sun Valley's 234 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Springwood - Winmalee, the wider ABS statistical area containing Sun Valley. There is no annual population series published at suburb level, so this describes the surrounding area rather than Sun Valley itself.
22,021 in 2001 to 22,366 in 2025, up 2%.
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.
Sun 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 | 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 Sun 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.
Aircraft have been seen below 3,000 ft over about 79% of Sun Valley. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Sun Valley. 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 an indicative AS 2870 site class for a Sun Valley lot.
See what's in the $9 report →Sun Valley planning - frequently asked
Is Sun Valley flood-prone?
We don't yet hold flood mapping covering Sun Valley, 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. Blue Mountains is the authority to check for flood mapping in this area. Published flood models are held over parts of Sun Valley; the free check on the Flood Model Report page says whether one reaches a given address.
Is Sun Valley bushfire-prone?
Around 99% of Sun Valley is mapped as bushfire-prone, compared with a Blue Mountains average of 96%.
Is Sun Valley under a flight path?
Aircraft were observed below 3,000 ft over about 79% of Sun Valley, and over about 85% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 3,500 ft. At the busiest point in the suburb about 1 aircraft a day were recorded passing over one 500 m square. 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 Sun Valley?
The dominant planning zone in Sun Valley is Rural Landscape, though the suburb also includes Environmental Conservation and Environmental Management.
Does Sun Valley have heritage-listed places?
Sun Valley has 4 heritage-listed places on record.
What is the typical lot size in Sun Valley?
Across 98 surveyed parcels in Sun Valley, the median lot size is about 21,020 m².
Does Sun Valley have a train station?
There is no train station inside Sun Valley itself. The suburb is served by 4 bus stops.
What is the population of Sun Valley?
At the 2021 Census Sun Valley had 234 usual residents, with a median age of 47 and an average household size of 2.9 people. The wider Springwood - Winmalee statistical area, which contains Sun Valley, went from 22,021 people in 2001 to 22,366 in 2025, up 2%.
Is Sun Valley an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Sun Valley scores 1092 and sits in decile 10 of 10 nationally and decile 10 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Sun Valley?
Median household income in Sun Valley was $2,374 a week at the 2021 Census, against $2,083 for the typical suburb in Blue Mountains. Median rent was $400 a week and the median mortgage repayment $3,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Valley Heights | 1.3 km | Not mapped | 95% |
| Warrimoo | 2.1 km | Not mapped | 99% |
| Springwood | 3.0 km | 0% | 94% |
| Winmalee | 3.7 km | 0% | 92% |
| Yellow Rock | 3.7 km | 3% | 99% |
| Mount Riverview | 4.3 km | 0% | 90% |
| Blaxland | 4.7 km | <1% | 84% |
| Faulconbridge | 5.0 km | Not mapped | 97% |
| Emu Heights Penrith |
5.7 km | 25% | 69% |
| Hawkesbury Heights | 6.0 km | <1% | 100% |