Hi - ours is a linked detached/ detached house (see pic). We are planning to have rear kitchen/diner extension. On doing that our current dining room will become a room in the middle between the front reception and rear kitchen/diner. This room in the middle will be without a window.
I wonder if we can open up Window on the detached left side of the house. Do we need any permissions? There's no shared wall with neighbours. Although it's a narrow alley, at least there will be some window opening for that room.
Keen to hear views. Thank you.