File 20377: Walburgh House, 56 Bigland Street Correspondence, schedule of works, works progress sheets, structural calculations, planning permissions and building plans to erect a precast concrete building for the storage of inflammables and acids at Walburgh House, Bigland Street. Includes details for the formation of a new foyer and covered way link between the library and main building and associated means of escape and alterations to the library at City of London Polytechnic (Chapman Annexe) . This premises known as the City of London Polytechnic (Chapman Annexe) was previously the Chapman School. 1971-1979