Bath summer house. 1729. By John Hallam. Converted to orangery 1889. Brick and coursed squared rubble with ashlar dressings. Roofless. Chamfered brick and stone plinths, first floor band, moulded cornice. Single and 2 storeys. 3 unequal bays. Rectangular plan with, to east, canted bay window and adjoining three-quarter round fountain. North side has central doorway with elliptical head, flanking pilasters and entablature with shaped crested gable inscribed 'S 1889'. East end has single square flanking towers, 3 stages. Bay window has remains of 3 cross casements with moulded architraves. Attached plaque inscribed 'This fountain is copied from an antique lamp found in the excavations undertaken by Lord Savile GCB when Ambassador to Rome on the site of the Temple of Diana Nemorensis at Nemi, Italy, in 1885'. Towers have each, to east, a single round window on each floor. West fronts have a doorway with panelled architrave and keystoned segmental head. Above, a round window, and above again, another round window and on inside faces, a doorway with panelled architrave. Top stage of north east tower rebuilt c.1971. Each tower contains an ashlar newel stair. Ashlar coped fountain pool contains fountain in the form of a Roman lamp. Interior has to east, 3 bay Tuscan loggia with moulded bases and capitals, antae and diced flanking pilasters. Adjoining garden Wall, L-plan, has ramped ashlar coping. To north, central ashlar doorway. To east, blocked doorway and to right, pair of blocked ashlar gatepiers with flat caps. Slate memorial tablet, 1953. Approx. 400 M long. (NCC/js)