Answer:

annexes

Answer	Crossword Clue
ANNEXES	Add-ons
ANNEXES	Relatively new wings
ANNEXES	Building additions

ANNEXES	New wings, maybe
ANNEXES	Takes over
ANNEXES	Ells
ANNEXES	Architectural afterthoughts
ANNEXES	Incorporates
ANNEXES	Wings
ANNEXES	Takes over, as territory
ANNEXES	Appropriates

ANNEXES	Subsidiary buildings.
ANNEXES	Wings of a building.
ANNEXES	Subjoins.
ANNEXES	Builders' afterthoughts
ANNEXES	Auxiliary buildings
ANNEXES	Additions at school?
ANNEXES	Adds on
ANNEXES	Some wings

ANNEXES	Extensions
ANNEXES	Adds
ANNEXES	Architectural additions
ANNEXES	New wings