1.Yes, there's one. It's on the top floor.
2.The office is up on the top floor.
3.A small loft, garret, or attic.
5.An open space under a roof; an attic or a garret
6.His apartment is on the top floor.
7.He took the lift to the top floor.
8.Leakiness in the roof caused a damp attic.
9.Please take the staircase to the roof(rooftop).
10.a loft for storing hay.