Dorchester County Hospital (Main block only)

The Dorchester County Hospital, consisting of the main block only, was founded in 1838 and designed shortly thereafter. The north wing opened in May 1841, the centre in 1846, the south wing in 1859, and the chapel in 1862. The architect was Benjamin Ferrey. The building is constructed of Portland hammerdressed stone with ashlar quoins, and has pitched tile roofs with ashlar chimneys featuring diagonally placed stacks. Coped stone gable ends incorporate scrolled and fluted kneelers. The building is two storeys and has attics, and a continuous dripmould above the ground floor.

The main range is U-shaped, with wings projecting west. The main range has three projecting bays, the centre one projecting the most, each crowned with a gable on the third storey. The central bay has a modern four-centred arch doorway with moulded jambs and voussoirs. A recessed moulded panel at dripline level displays an armorial coat and motto in relief. Above this are a three-light mullion and transom window on the first floor, and a two-light mullioned window on the second floor, both with hood moulds. The other projecting bays have four-light mullion and transom windows on the ground and first floors, and two-light mullioned windows on the second floor, with hood moulds to the first and second-floor windows. Between the projecting bays are ranges of three-light mullion and transom windows, and ranges of single-light windows with transoms. The terminal wings, facing the courtyard, each have two ranges of four-light mullion and transom windows. End elevations are masked by modern additions, which are not listed.

The chapel, erected as a memorial to Arthur Acland Troyte, who was introduced to Ferrey by the Williams of Bridehead (Ferrey's original patrons in the Dorchester area), and who subsequently became an architect under Ferrey's guidance before his death in 1857, is two storeys high, with a stringcourse. Beneath is an undercroft with a blocked pointed arcade. The first floor has four pointed lancet windows with Early English tracery, hood moulds, and mask label stops. The east end has a three-light window also with Early English tracery.

The interior is plain, with contemporary pews, a lectern, altar rail, and gallery. Stained glass is present in the east window. The cornice is decorated with a high-relief inscription reading "Praise the Lord O my soul and forget not his benefits who forgiveth all thy sin and healeth all thine infirmities."