I have something which I would like to pass on to somebody. I can remember the block of flats they live in but it's huge and I don't know the door number. I don't know if it would be passed on if I just sent to the building. Would it show on the electoral roll? I'm in town next week, I assume its kept in the library? Doesn't seem an option to search online. Does anybody know how? Thanks 👍🏼 😊