Mawson Lakes Sa

Northern Adelaide · South Australia

What's Mawson Lakes made of?

Mostly 2000s estates on 300-500m², plus apartments blocks, sitting on reactive clay, with low pressure to knock down and rebuild. City of Salisbury.

Who built Mawson Lakes
2000s estates 65%Narrow-lot estates 25%Infill townhouses and rebuilds 10%

The eras, street by street

2000s estates

65%
2000s

Rendered or face-brick four-two-two, alfresco, theatre room, rainwater tank on the side. Blocks 450-600m². Volume builders on greenfield land.

Narrow-lot estates

25%
2010s-2020s

Two-storey or long single-storey on 300-450m², black window frames, Colorbond Monument roofs, solar on most, 6 or 7-star rated. Very few established trees yet.

Infill townhouses and rebuilds

10%
2000s-2020s

Two or three homes where one 1960s house stood: Torrens-title courtyard homes, hammerhead battle-axe blocks, occasional two-storey townhouse rows.

Typical block
300-500m², plus apartments
Typical frontage
10-15m
Rebuild pressure
Low

Under the floor

Soil

Reactive clay

Moderately to highly reactive clay (Class M to H). Seasonal movement causes hairline cracking in brickwork and render. Modern slabs are engineered for it; older strip footings were not. Consistent moisture around the house is the whole game.

In the walls

  • Leaking showers and balconies are the era's defect
  • Dozens of halogen downlights
  • Engineered stone benchtops (safe to live with, not to cut)
  • Estate covenants still in force
  • Site classification (reactive clay) drives slab design and cost
  • Design covenants control fences, colours and even clotheslines
  • Titles and infrastructure delays in newer stages
  • Builder insolvency exposure for anything under construction
What each of these costs to fix

How the streets are changing

Complete. The only movement is apartments near the interchange and the odd knockdown of an early 2000s home.

The thing locals know

Built on the old Levels campus and Pooraka saleyards land, so the soil report matters more than the age of the house.

Time machine

What's changed in Mawson Lakes since Nan bought

House prices in years of wages, decade by decade, what was standing when, and what her block does now.

Open the timeline

Questions about Mawson Lakes

Do houses in Mawson Lakes have asbestos?+

Less likely than most suburbs. Mawson Lakes is dominated by post-1990 homes built after asbestos cement sheeting left the market. Older sheds, fences and any pre-1990 pockets are the exception.

What soil is under Mawson Lakes?+

Reactive clay. Moderately to highly reactive clay (Class M to H). Seasonal movement causes hairline cracking in brickwork and render. Modern slabs are engineered for it; older strip footings were not. Consistent moisture around the house is the whole game.

Can I subdivide a block in Mawson Lakes?+

Low subdivision pressure: Streets look much as they did. Occasional renovation, very little demolition. Typical blocks are 300-500m², plus apartments. Check the zone and minimum site area in the Planning and Design Code for the exact street.

Street-level generalisations from council heritage studies, ABS dwelling-age data, soil classification maps and BuildPilot partner site reports. Every street has exceptions. A soil test, a building inspection and the council's overlay map beat any suburb profile, including this one.

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