Hi- we currently have a windowless bathroom on the first floor. We are thinking of putting in a new window for a little light / ventilation etc. The house is a detached but the houses are built closely so there is about a metre and a half between the side wall of our house and next door’s side wall - identical houses. The bathroom in question is in the middle of this side wall , so a new window would just look onto next door’s side wall. They are all completely windowless walls so wouldn’t be looking in on any of their rooms. Below the proposed window is our walkthrough to the garden from the front. Would this be allowed? Any restrictions that anyone can tell me? Thanks so much.