The previous next door neighbours added a big extension before we moved in so I'm presuming it needed planning permission. It has a flat roof, is right next to our fence, one of the upstairs rooms has double doors out and there is a fence all round the top. It overlooks our garden. They never used it as a balcony but unfortunately it has been sold and the new neighbours do.
We want to see if there was any specific terms in the planning permission about it not being used as balcony - How would we go about finding out about the planning permission that was given? Are there public records etc?