Undercliffe zoning & planning overlays
A planning-constraint profile of Undercliffe
(Tenterfield, NSW) - 39.83 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
39.83 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 Undercliffe'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 Undercliffe
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 26 Sep 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.
Undercliffe at a glance
How Undercliffe is zoned
Buying in Undercliffe? 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 39.83 km², Undercliffe 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. The dominant land-use zone is Primary Production. The median lot measures about 231,671 m² across 58 parcels.
Who lives in Undercliffe
Census 2021 figures published by the ABS for the Undercliffe 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 945, and decile 3 within New South Wales. The national average is 1000.
Population trend, 2001 to 2025
Estimated resident population of Tenterfield, the wider ABS statistical area containing Undercliffe. There is no annual population series published at suburb level, so this describes the surrounding area rather than Undercliffe itself.
6,842 in 2001 to 7,188 in 2025, up 5%.
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.
Undercliffe 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 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 Undercliffe 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.
The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Undercliffe lot.
See what's in the $9 report →Undercliffe planning - frequently asked
Is Undercliffe flood-prone?
We don't yet hold flood mapping covering Undercliffe, 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. Tenterfield is the authority to check for flood mapping in this area.
Is Undercliffe bushfire-prone?
Around 100% of Undercliffe is mapped as bushfire-prone, compared with a Tenterfield average of 99%.
Is Undercliffe under a flight path?
Aircraft were observed over about 4% of Undercliffe in the period sampled, but only above 3,000 ft - the lowest measured was 6,500 ft. 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 Undercliffe?
The dominant planning zone in Undercliffe is Primary Production.
Does Undercliffe have heritage-listed places?
No heritage-listed places are on record within Undercliffe.
What is the typical lot size in Undercliffe?
Across 58 surveyed parcels in Undercliffe, the median lot size is about 231,671 m².
Is Undercliffe an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Undercliffe scores 945 and sits in decile 3 of 10 nationally and decile 3 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Wylie Creek | 7.0 km | Not mapped | 100% |
| Liston | 8.1 km | Not mapped | 100% |
| Willsons Downfall | 10.2 km | 0% | 100% |
| Rivertree | 10.6 km | Not mapped | 100% |
| Amosfield | 12.7 km | 0% | 100% |
| Cullendore | 15.6 km | 0% | 100% |
| Ruby Creek | 16.6 km | 0% | 100% |
| Maryland | 16.7 km | 0% | 100% |
| Legume | 17.4 km | 0% | 100% |
| Upper Tooloom | 18.8 km | Not mapped | 100% |