Subsidence: the time is ripe for change

Abstract

Outlines the application of technology used in detecting and remedying the problems caused by subsidence and settlement, and the responsibility placed on surveyors in detecting it. Proposes that a clearly defined serviceability limit would reduce disputes about whether or not acceptable subsidence or settlement had occurred. Discusses the changes in definitions brought about through new legislation and developing standards. Explores the main difficulties with subsidence and highlights subsidence blight. Explains the role of insurance companies and the changes taking place with insurance premiums, and calls for the implementation of clear definitions of such things as unacceptable subsidence, professional negligence and management of subsidence claims. Investigates three stages of remedial works: the work necessary to stabilize the foundations and thus prevent future damage; the structural repair of the building necessary to restore the stability and structural integrity; and the decorations and finishes. Proposes the need for deeper foundations for new buildings on shrinkable clay soils and alternatives to underpinning. Suggests changes that could give further help to the insurer by changing the expectations of the homeowner and declares that the problem has been mishandled and misunderstood by insurers.

Citation

Pryke, J. (1993), "Subsidence: the time is ripe for change", Structural Survey, Vol. 11 No. 4, pp. 357-365. https://doi.org/10.1108/02630809310026776