1) A building for some special purpose, not a dwelling-house.
1419 thaire halles and thaire houses of office, York
1450-5 wyth many oder howsys of officys qwylk er all fallyn doune, Anlaby
1532 also one barke mylne kylne with odre howses of office, Fountains Abbey
1553 all howses, laithes, gardens, howses of office, Wadsworth
1618 In th’one of those wings there be two kitchins, bakehouse, brewehouse, and other houses f office, Breckenbrough. Note this description of the main dwelling room of a Leeds clothier: 1576 In the Offyse Howse.