Two Wells flood map & planning overlays
A planning-constraint profile of Two Wells
(Adelaide Plains Council, SA) - 43.67 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
43.67 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Two Wells'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 Two Wells
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 1 a day
Night movements: observed, lowest 2,500 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.
Two Wells at a glance
How Two Wells is zoned
Selling in Two Wells? 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 43.67 km², Two Wells is highly constrained by planning overlays. About 50% of the suburb sits within a mapped flood overlay, and 97% is flagged bushfire-prone. There are 4 heritage-listed sites on record, and the dominant land-use zone is Rural Horticulture. The median lot measures about 1,262 m² across 2,252 parcels.
Who lives in Two Wells
Census 2021 figures published by the ABS for the Two Wells 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 954, and decile 4 within South Australia. The national average is 1000.
Age profile
Share of Two Wells's 3,233 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lewiston - Two Wells, the wider ABS statistical area containing Two Wells. There is no annual population series published at suburb level, so this describes the surrounding area rather than Two Wells itself.
4,457 in 2001 to 8,175 in 2025, up 83%.
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.
Two Wells 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 Two Wells 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 14% of Two Wells. 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 Two Wells lot.
See what's in the $9 report →Two Wells planning - frequently asked
Is Two Wells flood-prone?
About 50% of Two Wells falls within a mapped flood overlay, against the council-wide suburb average of 14%.
Is Two Wells bushfire-prone?
Around 97% of Two Wells is mapped as bushfire-prone, compared with a Adelaide Plains Council average of 81%.
Is Two Wells under a flight path?
Aircraft were observed below 3,000 ft over about 14% of Two Wells, and over about 76% 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 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 Two Wells?
The dominant planning zone in Two Wells is Rural Horticulture, though the suburb also includes Rural Living and Master Planned Township.
Does Two Wells have heritage-listed places?
Two Wells has 4 heritage-listed places on record.
What is the typical lot size in Two Wells?
Across 2,252 surveyed parcels in Two Wells, the median lot size is about 1,262 m².
Does Two Wells have a train station?
There is no train station inside Two Wells itself. The suburb is served by 2 bus stops.
What is the population of Two Wells?
At the 2021 Census Two Wells had 3,233 usual residents, with a median age of 35 and an average household size of 2.8 people. The wider Lewiston - Two Wells statistical area, which contains Two Wells, went from 4,457 people in 2001 to 8,175 in 2025, up 83%.
Is Two Wells an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Two Wells scores 954 and sits in decile 4 of 10 nationally and decile 4 within South Australia (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Two Wells?
Median household income in Two Wells was $1,906 a week at the 2021 Census, against $1,552 for the typical suburb in Adelaide Plains Council. Median rent was $300 a week and the median mortgage repayment $1,700 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Riverlea Park City of Playford |
5.7 km | 61% | 89% |
| Lewiston | 6.4 km | 60% | 100% |
| Port Gawler | 8.2 km | 18% | 58% |
| Virginia City of Playford |
8.5 km | 53% | 100% |
| Middle Beach | 8.5 km | 34% | 66% |
| Buckland Park City of Playford |
10.3 km | 12% | 65% |
| Korunye | 10.3 km | 63% | 100% |
| Penfield Gardens City of Playford |
10.6 km | 43% | 100% |
| Reeves Plains | 11.3 km | 7% | 100% |
| Angle Vale City of Playford |
11.8 km | 35% | 67% |