There is currently a 6ft wall but their house is higher and our kitchen windows face each other. I always draw the blinds as find it weird when we are both using our sinks and see each other. Plan to put some nice smelling fast climbers up so block them out in a year or two. Is would block out some of their view, but they have built a massive extension that blocks my view anyway from the side. Legally is there something about fence type structures not being over 6ft?