We live in a semi, the other half of which was bought over three years ago but, due to a combination of the new owner's slightly OTT plans and a council planning dept from hell, has been unoccupied all that time and going quietly to seed. We have done the party wall agreement and are basically girding our loins for the horrendous, full-scale building work next door which will take months (and both DH & I work from home).
Currently the fence dividing our back gardens is in a state of extreme disintegration and has been for a few years. It needed replacing when he first bought next door (I'd come to an agreement re replacing it with the previous owner) but we held off because he was planning so much work. That part of our garden (and it's a town garden, so not huge, and this part is fully visible from our back windows) is looking really scruffy but we haven't been able to do anything because we've thought that at any time it's going to get trampled on by builders. His plan is to build a rear extension with a wall continuing on from that which will replace the fence.
The neighbour now says he's hoping to start next month. I'd emailed him today to tell him that we were going to go ahead and have our front garden landscaped because we couldn't wait any longer, and we really wanted to do some work to the back too. (By this I meant tidy up and re-do the planting, not build anything). He's just emailed me to say that he wants to build a brick wall along our front & back boundaries and did we want to contribute?! Now, through all the various meetings we've had with him and his surveyor (taking up OUR time for HIS sodding building work) he has NEVER mentioned our making a contribution. I don't know who has legal responsibility for the boundary - I need to dig out the deeds - but even if we do you'd think he'd waive that considering the inconvenience we've already suffered and will continue to suffer throughout the works?
Also, from getting quotes for our front garden I know that brick walls are very expensive and were we to replace the boundary at our own expense we would settle for fencing panels and/or timber.
So, would we be unreasonable to give him either a flat 'no', or offer to pay half the cost of a wooden fence? (By the way this was the arrangement we came to with the previous neighbour).
I think he has seized on the fact that we are doing our own work, completely over-estimated how much we are actually planning, and is trying to claw back some of the undoubtedly exorbitant cost of his own renovations. I think he owes us a f* of a load of goodwill and if he wants a fancy brick wall he should bloody well pay for it.
Sorry this is so long & convoluted - happy to give clarification if needed.