Can someone please advise me how much a Raft Foundation will cost?
Our builders have had to stop work on our extension due to the council not approving 1.2m depth of
excavations due to a nearby tree.
The builder tells me that a Raft Foundation will be a solution - but he also tells me that this will cost an additional £6,000 plus VAT on top of the original quoted cost. This equates to exactly one quarter of the cost of the entire project!
The size of the single storey extension is 6m x 3.5m.
Can someone please advise as to whether these extra costs are reasonable?