Do builders need to serve party wall notice if they are going to touch a boundary line. A well know company on a building site behind me decided to take my garden fence down between my garden and a field which has been my boundary for 20 years, get a JCB and dig big holes in my garden and fill them with concrete and stick fence posts in. I complained, the posts were eventually removed and the holes refilled with rubble! then 2 months later they do it again! They are clearly in my garden and through my soakaway.
They have also put other fences up with concrete panels to retain land, however they are already breaking and surely should have a more substantial retaining wall built?

