my house extension has come out of the ground to damp proof course level. I took my tape measure today to check the dimension and to my surprise it is 300mm bigger than the plans and the drawings , the proved plans and the drawings by the local authorities is 6600mm but it is now 6900mm. all the beams and the blocks are fitted and the builder supposed to start building above that on Tuesday where I will be talking to him. the further it can be brought back is 200mm which is the edge of the concrete foundation . will this be any issue with the local authorities?. shall I call them on Tuesday to clarify this issue?