The Ecology Building Society (tel: 0645 675566) is one of few mortgage lenders to look kindly on derelict buildings renovation. Borrowers however, need 20 per cent deposit available up front and capital to keep the building work going. As a prerequisite of listed building consent for restoration, you may be obliged to use historic techniques as per the guidelines of the Society for the Protection of Ancient Buildings (SPAB) tel: 020 7377 1644.