The window facing a wall still offers light that changes the room’s hours.

A poor view is not the same as no window. Light still moves across the wall opposite, still says it is morning, still shifts as the afternoon goes on, and a room carrying that information is a different place to live in. What a window gives you is time as much as scenery.

If yours looks at brickwork, work with the light rather than mourning the outlook. Keep the glass clean, keep the sill clear, put the chair where the light lands. Noticing the hours a room passes through is available even in a small flat.