We live in a semi-detached bungalow and are thinking of extending to the rear.
Both ourselves and the other house we're joined on to already have single storey extensions. There is a fence and a hedge along the boundary line between the two properties, and our two extensions are stepped in by a couple of feet on each side of that boundary fence.
We want to make our single storey flat roof extension about 15 feet longer, but I've heard about the 45 degree rule that the planners can use to prevent such a thing. My query is - as there has always been a close-boarded fence 1.8m high between the properties and a hedge about 2.5m high does this mean they couldn't object to the extension on the grounds of shadowing next door's property as there has always been a physical barrier there anyway? I would guess the extension would be about 3m high in total - so a couple of feet higher than the existing hedge.
Any advice or answers would be welcome.