Apartment on the Top Floor
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2161, Puzzle 2 (Coal and Granite).
Question is: Apartment on the Top Floor
and the answer is: PENTHOUSE
Word Meaning:
PENTHOUSE — (now historical) A structure or annexe (especially one with a sloping roof) extending from the side of a building, sometimes as protection from the weather.
Definitions from Wiktionary.