We are having a loft conversion, and have never organised anything on this scale before. We are using a builder recommended by a friend, who says he can do this on a building notice. We have checked with the local planning office, and they agree we don't need planning permission.
When we asked for a contract, he said they "aren't worth the paper they're written on", and is instead drawing up a schedule - what he'll do when, and what we'll pay him when. Does this sound appropriate? What else do we need to ask about? We trust him insofar as he has done good work on a colleague's house (big extension), but we want to make sure to get whatever paperwork is appropriate in place.
Also, his structural engineer claims to be able to design a conversion that won't require party wall agreement (next door is council owned and apparently round here they can be notoriously slow. We have an immovable deadline with twins due in 6 months!). Her design uses a "ply beam" to span the house front to back (8m) rather than side to side. Has anyone heard of these?