The Defective Dwellings (Mortgagees) Regulations 1986
Under Part XVI of the Housing Act 1985 an owner of a defective dwelling (one in a class designated by the Secretary of State because the buildings are defective by reason of their design or construction) can, if the appropriate conditions are fulfilled, require the local housing authority to give him a grant to reinstate the dwelling or, sometimes, require the authority to repurchase it from him at 95 per cent. of a “defect-free” price.