Published 18/03/2016 10.54 AM | Updated 14/09/2017 09.01 AM
Subsidence is downward movement of the ground supporting the building, most commonly caused by:
- the shrinkage of clay subsoil following long spells of dry weather trees and other vegetation which extract moisture from the soil causing it to shrink
- leaking drains, which wash away the subsoil below foundations
- mining activity
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