Following their formation into three divisions in 1775, His Majesty's Marine Forces became the first corps in Britain to be fully accommodated in their own barracks, which were established in the three divisional towns of Chatham, Portsmouth and Plymouth; Stonehouse is the only one of these to have survived.[1] As a whole, Stonehouse is described as "the oldest and most important group of barracks in England not forming part of a fortification: a very rare example of C18 planning, and a complex of great historic value".[2] The earliest parts of Stonehouse Barracks date from 1756, but the main phase of construction was undertaken between 1779 and 1785 by James Templer and Thomas Parlby,[3] with later additions in the 19th century by Colonel Godfrey Greene.The west side of the parade ground was closed off with railings and gates, with a small guard house (topped by a clock and cupola) in the centre.[13] The archway block on Durnford Street, which forms the west side of the parade ground, also dates from this period (1867–71); the range consists of a set of six houses for senior officers, administrative offices and a chapel (originally a schoolroom) above the central entrance arch.