Sunday School of Unitarian Chapel and Tower House

The Sunday School of the Unitarian Chapel and Tower House, built between 1824 and 1826 and later extended in the 19th century, is now used as offices. The building features roughcast walls with limestone dressings and a slate hipped roof. It has a single-depth plan and is two storeys high with a five-window range. There are two linked blocks; the longer left-hand block has a plat band and a ramped parapet to the right, which includes a semicircular-arched doorway. The ground-floor windows match this doorway and have small-paned fanlights, while the flat-headed windows above are tripartite with 12/12-pane sashes and flanking 6/6-pane sashes. The later right-hand section has ground-floor 6/6-pane sashes and a matching left-hand glazed 20th-century door. The interior was converted to offices in the late 20th century. This building is a remnant of the dense development along the escarpment that runs parallel to the harbour and is linked to the Lewin's Mead Unitarian Chapel.