Planning Portal - A very useful "interactive" guide as to when Planning Permission and Building Regulation approvals are required for alterations, extensions etc.
The Property Care Association - The PCA is the trade association representing structural repair, timber, damp and waterproofing specialists across the United Kingdom. Members of the PCA can be trusted to rectify problems with affected buildings, by employing industry certified surveyors and technicians to uphold challenging standards.
Competent Person Register - Competent Person Schemes (CPS) were introduced by the UK Government to allow individuals and enterprises to self-certify that their work complies with the Building Regulations as an alternative to submitting a building notice or using an approved inspector. A Competent Person must be registered with a scheme that has been approved by The Department for Communities and Local Government (DCLG). Schemes authorised by the DCLG are listed on its website at http://www.communities.gov.uk
Land Registry - The Government agency responsible for registration of legal ownerships of land