PPG15 Planning and the Historic Environment
is the main Government source document. It can be found at
Note that with effect from 8 March 2007 the guidance contained in Circular 01/07: Revisions to Principles of Selection for Listed Buildings, replaces Section 6, paragraphs 6.1 – 6.40, of PPG 15 and the existing paragraphs 6.1 – 6.40 are revoked.
There is also Best Practice Guidance on Listed Building Prosecutions