I live on the top 2 floors (maisonette) of a 3 storey split level semi-detached house. I want to build some stairs on the side of the house (into my garden in the space between my house and the next house) so that I have access straight into the garden. The width between the houses is around 5 metres and the part that is mine about 2.5m. I would need to put a new door in and the height from the proposed door to the ground is 5m. I am wondering if anyone knows the answer to the following as I can't find them on the building regs docs.
1. My neighbour lives on the ground floor and her bedroom is on the 1st floor split with my lounge. She has a window that is in the middle of the wall where I want to put the stairs, how close to the window are my stairs allowed to be?
2. what is the minimum width of external stairs I am allowed (the stairs are only for my use to my apartment only).