Could someone please advise. A builder was given a job to cast a foundation. He dug 3ft. The architect approved his work at specific steps and told him when to continue etc. He was given the go ahead by architect for the foundation to be cast. The builder cast the foundation. Months later, the builder has received a letter stating that the foundation should not have been cast prior to an inspection. When the foundation was exposed it was found they passed over a sewer, the foundations were re-cast within the line of the drain so as not to impose any load upon drain. Who is liable in a case like this - the Architect or builder? What does 'expose' mean - does it mean the whole of the foundation had to be taken up and then re-cast? Is this a big job? Is it a big cost? Thanks