Related Clues:

• Extension to a main building
• Edifice addition
• An addition that extends a main building
• Add to the end; take possession of
• New wing, say
• Take by force, as land
• Add as an extra part
• Incorporate, as the U.S. did Texas
• Add by appropriating
• New wing, e.g
• Knights go in swinging axe and conquer
• Building's extra
• Add another wing
• Secondary building
• Acquire forcibly, as land