penthouse

Short definition from Wiktionary

Noun

1. 1
   A structure or annexe (especially one with a sloping roof) extending from the side of a building, sometimes as protection from the weather.
2. 2
   Something forming a shelter or canopy over something; an awning, shelter, etc.
3. 3
   Any of the sloping roofs at the side of a real tennis court.
4. 4
   An apartment or suite found on an upper floor, or floors, of a tall building, especially one that is expensive or luxurious with panoramic views.

Verb

1. 1
   To provide with a penthouse, shelter by means of a shed sloping from a wall, or anything similar.