Massive trawl, but how did this pan out? I need to get access to the other side of my bedroom wall. Don't need to go through the neighbour's house or anything to do it, but there's a shed, and the wall is covered in ivy and crap, which I'm fairly sure it contributing to my damp problems. Conveniently the neighbours are new, redoing their driveway/garden situation and may not want the shitty old shed anyway.
Additional trip hazard - am leasehold, freehold is another neighbour. Benevolent but lazy.