Hill Top flood map & planning overlays
A planning-constraint profile of Hill Top
(Wingecarribee, NSW) - 37.87 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
37.87 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Hill Top's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Hill Top
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 1 a day
Night movements: observed, lowest 3,500 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.
Hill Top at a glance
How Hill Top is zoned
Buying in Hill Top? 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 37.87 km², Hill Top is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 96% 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 225 m² across 2,493 parcels.
Who lives in Hill Top
Census 2021 figures published by the ABS for the Hill Top 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 969, and decile 4 within New South Wales. The national average is 1000.
Age profile
Share of Hill Top's 2,792 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Hill Top - Colo Vale, the wider ABS statistical area containing Hill Top. There is no annual population series published at suburb level, so this describes the surrounding area rather than Hill Top itself.
5,404 in 2001 to 6,602 in 2025, up 22%.
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.
Hill Top 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 | 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 Hill Top 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 3% of Hill Top. 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 Hill Top lot.
See what's in the $9 report →Hill Top planning - frequently asked
Is Hill Top flood-prone?
Flood mapping covers Hill Top and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 0%).
Is Hill Top bushfire-prone?
Around 96% of Hill Top is mapped as bushfire-prone, compared with a Wingecarribee average of 90%.
Is Hill Top under a flight path?
Aircraft were observed below 3,000 ft over about 3% of Hill Top, and over about 57% 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 2,500 ft, with an average of 4,500 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 Hill Top?
The dominant planning zone in Hill Top is National Parks and Nature Reserves, though the suburb also includes Environmental Conservation and Environmental Management.
Does Hill Top have heritage-listed places?
Hill Top has 1 heritage-listed place on record.
What is the typical lot size in Hill Top?
Across 2,493 surveyed parcels in Hill Top, the median lot size is about 225 m². There are also 7 registered easements mapped in the suburb.
Does Hill Top have a train station?
There is no train station inside Hill Top itself. The suburb is served by 20 bus stops.
What is the population of Hill Top?
At the 2021 Census Hill Top had 2,792 usual residents, with a median age of 35 and an average household size of 2.8 people. The wider Hill Top - Colo Vale statistical area, which contains Hill Top, went from 5,404 people in 2001 to 6,602 in 2025, up 22%.
Is Hill Top an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Hill Top scores 969 and sits in decile 4 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 Hill Top?
Median household income in Hill Top was $1,924 a week at the 2021 Census, against $1,958 for the typical suburb in Wingecarribee. Median rent was $435 a week and the median mortgage repayment $2,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Colo Vale | 4.5 km | 0% | 97% |
| Balmoral Village | 5.7 km | 0% | 100% |
| Yerrinbool | 7.7 km | 0% | 98% |
| Wattle Ridge | 8.2 km | 0% | 100% |
| Yanderra Wollondilly |
8.8 km | 0% | 88% |
| Alpine | 8.8 km | 0% | 100% |
| Aylmerton | 9.0 km | 0% | 90% |
| Braemar | 9.5 km | 0% | 44% |
| Willow Vale | 9.8 km | 0% | 60% |
| Woodlands | 10.0 km | 0% | 100% |