We're interested in a property and thjnking of putting in an offer. As we are in Scotland, we have the Home Report commissioned by the seller, which gave the property all 1s. Is it the norm to commission a full building survey in addition to this and make the offer conditional upon this? The property did appear to be in good condition, but we are really not experts. It was built in the early 70s and has been extended twice - once as a dormer extension over the garage, and also a single storey extension to the back. Both have flat roofs.