Number 17 Store (Building Number 1/64) and Bollards at North West and South West Corners

Number 17 Store, also known as Building Number 1/64, is a hemp store that has been repurposed as a store. It was built in 1781 and has undergone significant alterations in the mid to late 20th century. The building is constructed of red brick in English bond, featuring blue headers on the second floor and a band above the ground floor. The original double-pitched roof has been replaced with a flat-topped mansard roof made of plain tiles, which includes a rooflight.

The exterior of the building has three storeys and consists of 14 bays. There is an ashlar plinth on the south side, with buttresses at the ground floor, each featuring a brick table and stepped offset head. The windows are topped with segmental brick arches, with replacement soldier-brick arches on the second floor, and have projecting sills. The building includes large, inserted loading doors with folding metal doors from the 20th century. The eaves are boxed, and on the north side, there is a board door at the right end, with bays 8 and 10 being blind. At the east end, there is a single-storey, one-bay addition, and above it, the gable of the main range displays the date in blue headers.

Inside, the building features replacement rivetted steel roof trusses and a new internal structure.

At the north-west and south-west corners of the property, there are bollards made from upended cannon barrels, likely from the early to mid-19th century, which were reused as bollards in the mid to late 19th century. The muzzles of these cannon barrels are blocked, with the south-western bollard blocked by a cannon ball.

Originally known as the East Hemp House, this building was part of the reconstruction of the ropery following a fire in 1770. It shares a similar design with the adjacent Nos 16 and 15 Stores. Despite the alterations, it remains one of the largest integrated groups of 18th-century industrial buildings in the country.