Hi, As a small step towards repaying the valuable advice I have received on this forum I thought I'd share the attached document, which I hope will be useful and/or interesting to forum users.   I am a planner by trade, working in local authority. My SB is on a relatively small, highly inaccessible plot neighboured by mature trees, and tightly bordered by existing houses. The plot was a 'detached' back garden of sorts that came as part of the deal (and something of an afterthought