This building is at 263 Rotherhithe Street, and is a Grade II Listed Building. The Historic England website describes it (abridged) as:-
“Circa 1850, probably contemporary with Thomas Bible’s pioneering composite, timber-clad iron-ribbed hull constructions in the Nelson dockyard. It served the Nelson Dock Patent Slip immediately to its east where, between 1851 and 1866, Bible and Perry built composite hull clippers for the China Trade. An important remaining structure of the Nelson Dock.”