I think I was reacting to what Poacher said. It shows you how things escalate even on-line. We have sent conciliatory notes to next door asking when we could carry out work at least convenience to him - the police also suggested that to him. He has not responded. He also lied about how he behaved when he contacted us.
Anyway think nuff said. Work completely legal - he can huff and puff but won't blow house down.
Nothing to do with being debt ridden and Bear + Cat are not much of a rabble. It is to do with fact that flat (single bedroom, single bog) has not been properly redecorated/refurbished since early 1970's, during time heavy smoking, slightly psychopathic first husband managed to wreak a fair bit of internal damage. No. 2 did his best, but was not very good at interior decoration and as his health deteriorated he became more and more upset at my suggestion that I should employ a professional.
I am one of the first people to have moved into this particular terrace after the condemnation order was changed to a preservation one so that I have over the years had to put up with noise and inconvenience from other houses in the area being 'gentrified' - including that of my complaining neighbour. This is the first major renovation since then.
Having ranted I think RicF might have a good idea. He, his partner + (nice) dog are mightily welcome to squidge into the bedroom - if they can find enough space (full of stored stuff) whilst Muffin and I shall luxuriate in their 4 storey building - living in the top floors so as to avoid building noise.