Business place (6)
(Other definitions for office that I've seen before include "Professional or clerical duties are performed here" , "Firm" , "Room for working" , "Post - place of work" , "Job - place of work" .)
(Other definitions for premises that I've seen before include "Property" , "establishment" , "A business's site and buildings" , "The aforesaid" , "Places of business" .)