The NSW Housing Board Building is a heritage-listed former police station and government building and now commercial offices located at 16–18 Grosvenor Street in the inner city Sydney suburb of The Rocks in the City of Sydney local government area of New South Wales, Australia.

[1] This building was originally erected for the NSW Housing Board, a body set up in April 1912 and coming under the control of the Colonial Secretary.

[1] Completed in 1921, the building is constructed of exposed dark brick on three main levels plus basement, with access to Gloucester Street which is the lowest frontage.

The brickwork is laid in English Bond relieved by a modicum of stone dressing, both ashlar and attenuated pitch faced, used for ground level quoins and the Grosvenor Street central frontispiece.

[1] The building, built in 1921, is of aesthetic significance for its robust load bearing masonry character, strongly defining the corner, and displaying some key features of the Inter-War stripped classical style.

Significant features include the decorative entry portal, dark brick banding, and bracketed render cornice.

[6][1] NSW Housing Board Building was listed on the New South Wales State Heritage Register on 10 May 2002 having satisfied the following criteria.

[1] The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.

The building has a strong visual presence in the streetscape providing a framing element in the vista of the Central Business District at the Harbour Bridge approach.

The building at 16–18 Grosvenor Street, The Rocks has important social associations for the State and the local community due to its role as headquarters for the Resumed Properties Department and to house other government departments including: Agriculture, Prisons and for a short time Government Housing Office.

The building meets this criterion at State level providing evidence of government practices through the middle of the twentieth century.

The building at 16–18 Grosvenor Street has the potential to demonstrate rare aspects of early twentieth century government administration particularly because it still remains intact.

The façade demonstrates qualities that are typical of the Stripped Classical architecture of the Interwar period and although modifications have been carried out to the interiors, evidence of the style is consistent throughout.