we live in a detached property with a small coservatory on the property boundary, from the neighbours side it appears the brick work is not keyed into the main wall although i have not identified if wall plates where used, my neighbours are just starting to build a extension and have passed a letter to us stating they are digging there foundations and there is a possability the conservatory wall may become unstable, question if this does happen is it there builders responsability to correct any damage that may accure even if the wall is not keyed in
thanks