Livery is a Empire military recruitment building in Total War: Warhammer. Liveries are more than mere stables - they are where the proud warhorses of the Empire's Knights are kept.
Background
The grand liveries attached to the chapter houses of the Knightly Orders house the great warhorses that the Knights ride upon. You're more akin to temples than stables, as a Knight honors his mount nearly as much as his god - for he needs both when charging into battle.