Hi all, i need some advice...we have planning permission to build a single storey rear extension to our terraced house. We want to build within our boundary and served the neighbour the appropriate notice. The neighbour, after months of dragging the issue, not answering our surveyors calls, asking further clarifications from our architect and then refusing to discuss clarifications, now (6 months after the notice), started saying that she thinks the boundary itself is incorrect. The party wall guy is saying he can take a look but boundary disputes are out of his jurisdiction. Read that these disputes can take years to resolve and be very expensive. I suspect this is just a new story to frustrate and delay us more. Could we just go ahead and build and tell her to go to court if she has a problem?