Building Warrant: addition of workshop at rear of 13 - 15 North Silver Street (floor plans, elevation and sections) Applicant: John Jackson, electrical engineer Architect: Brown and Watt, FRIBA, architects, 17 Union Terrace, Aberdeen Date of decision: approved 12 March 1914 (1 sheet, ink and colour wash on tracing cloth) [Modern address: 13 - 15 North Silver Street] 12 March 1914