My neighbour removed our boundary hedge behind my back and against my wishes. He now has matching fencing on eitherside of his front garden and I have a high privet on one side and a low fence on the other. What are my rights?
If it was Jointly owned as you say, then he did NOT have the right to just remove it willy nilly. If he wanted a fence, what he should have done is erect the fence within his boundary and left the hedge.
This provides more info on lots of stuff to do with fences and hedges.