Remember that neighbours are considered to be even owners of fields within a certain radius of your property. (can't remember what it is I'm afraid)When I got permission for my own house the neighbours lands had to touch mine so even the local farmer was involved, but the rules changed and it is now this radius. Local planning officer will know - or your architect. (although mine didn't know about the cohesive group policy - special rules for groups of houses of 5 or more))