Recent UK heatwaves have highlighted a growing concern for homeowners, particularly those residing in properties built on clay-rich soil. When prolonged dry spells occur, moisture is extracted from the ground by vegetation, such as trees and bushes, causing the clay soil to shrink. This process can lead to the sinking of foundations, a phenomenon known as subsidence, which often results in visible structural issues.

Common indicators of this type of damage include cracks appearing in bricks and masonry, as well as doors and windows that become difficult to open or close due to the shifting of the building frame. While the phenomenon is well-documented by structural engineers, the current focus is on the scale of impact following recent extreme weather events. The Guardian has issued a call for homeowners to share their experiences regarding these specific structural problems and the challenges they face in managing repairs or insurance claims. There is currently no consensus on the total number of properties affected, as many homeowners may not yet have identified the underlying cause of their property's structural changes.