sentences:  It is located in the Sydney central business district at 45-47 York Street, close to Wynyard Park and Wynyard railway station.It was designed by Robertson, Marks and McCredie in association with DT Morrow and Gordon and built from 1937 to 1939 by William Hughes and Co. Pty Ltd.It was added to the New South Wales State Heritage Register on 2 April 1999.