We live in a semi and are about to get a conservatory on the back of our house. The neighbours have an extension at the back of theirs so their house sticks out further than ours at the back, and then first bloke who gave us a quote for the conservatory suggested we use their extension wall as a party wall rather building a new wall a few cms away from it. This sounded good to us and the neighbours are happy about it. The company gave us a copy of the party wall agreement they usually use and that looked fine.
However, the company who we have actually chosen to do the conservatory have never dealt with a party wall agreement and are a bit dubious about it. I don't know anything about the legal implications. Is this a common thing to do and has anyone done it before? I just want to know that it will all be ok really! Especially when we come to sell the house or if we get new neighbours.