What do you think the approximate build cost is for the following :
Single storey extension to back of house. 5x8m. 8 piles down to 8m. Raft floor.
Man hole moved 10m and 2 soil pipes move to new drain position.
In new extension there are 2 doors, 3.5mx2m and 1.5mx2m. Two windows, 1.5x1m...