Norton Summit flood map & planning overlays
A planning-constraint profile of Norton Summit
(Adelaide Hills Council, SA) - 7.76 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
7.76 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Norton Summit'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 Norton Summit
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 3 Oct 2026
typical observed square 0 a day
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.
Norton Summit at a glance
How Norton Summit is zoned
Selling in Norton Summit? The zone and overlays on this page are the Planning and Design Code controls a Form 1 vendor's statement has to disclose.
Across its 7.76 km², Norton Summit is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is Productive Rural Landscape. The median lot measures about 11,316 m² across 239 parcels.
Who lives in Norton Summit
Census 2021 figures published by the ABS for the Norton Summit 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 1074, and decile 10 within South Australia. The national average is 1000.
Age profile
Share of Norton Summit's 548 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Uraidla - Summertown, the wider ABS statistical area containing Norton Summit. There is no annual population series published at suburb level, so this describes the surrounding area rather than Norton Summit itself.
5,256 in 2001 to 6,484 in 2025, up 23%.
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.
Norton Summit 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 | the South Australian Planning and Design Code and Location SA spatial data |
| Bushfire-prone mapping | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Zoning | Mapped | the South Australian Planning and Design Code and Location SA spatial data |
| Heritage and environment | Mapped where published | the South Australian Planning and Design Code and Location SA spatial data |
| Aircraft noise contours (ANEF) | Not held | the South Australian Planning and Design Code and Location SA spatial data, 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 Norton Summit 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 29% of Norton Summit. 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 Norton Summit lot.
See what's in the $9 report →Norton Summit planning - frequently asked
Is Norton Summit flood-prone?
Flood mapping covers Norton Summit and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 1%).
Is Norton Summit bushfire-prone?
Around 100% of Norton Summit is mapped as bushfire-prone, compared with a Adelaide Hills Council average of 100%.
Is Norton Summit under a flight path?
Aircraft were observed below 3,000 ft over about 29% of Norton Summit, and over about 44% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 3 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 4,000 ft. At the busiest point in the suburb about 0 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 Norton Summit?
The dominant planning zone in Norton Summit is Productive Rural Landscape, though the suburb also includes Hills Face and Conservation.
Does Norton Summit have heritage-listed places?
Norton Summit has 9 heritage-listed places on record.
What is the typical lot size in Norton Summit?
Across 239 surveyed parcels in Norton Summit, the median lot size is about 11,316 m².
What is the population of Norton Summit?
At the 2021 Census Norton Summit had 548 usual residents, with a median age of 41 and an average household size of 2.8 people. The wider Uraidla - Summertown statistical area, which contains Norton Summit, went from 5,256 people in 2001 to 6,484 in 2025, up 23%.
Is Norton Summit an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Norton Summit scores 1074 and sits in decile 10 of 10 nationally and decile 10 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Norton Summit?
Median household income in Norton Summit was $2,316 a week at the 2021 Census, against $2,089 for the typical suburb in Adelaide Hills Council. Median rent was $315 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Marble Hill | 1.9 km | 0% | 100% |
| Ashton | 2.6 km | 0% | 100% |
| Teringie | 3.1 km | 0% | 100% |
| Woodforde | 3.2 km | 0% | 97% |
| Horsnell Gully | 3.4 km | 0% | 100% |
| Basket Range | 3.9 km | 0% | 100% |
| Skye City of Burnside |
4.1 km | 0% | 100% |
| Montacute | 4.2 km | 0% | 100% |
| Cherryville | 4.2 km | 0% | 100% |
| Auldana City of Burnside |
4.6 km | 0% | 100% |