Oak Hill Park Mansion

Oak Hill Park Mansion is a small mansion built in 1815 for Thomas Hargreaves, with an extension added around 1848. The building is constructed of ashlar stone and features a hipped slate roof. It has a double pile plan with service wings at the rear and a 3-bay addition on the left side. The mansion is two storeys high and designed in a classical style, showcasing a symmetrical 5-bay facade where the three central bays project slightly and are topped with a pediment. It has a dentilled cornice and an open Doric porch that includes a wide doorway with margin lights, fluted columns, a frieze, and a segmental fanlight with radiating glazing bars. The windows on the first floor are sashed with glazing bars, although the ground floor windows are now concealed.

On the right side, the return wall consists of four bays and continues as a two-bay service wing. The second bay features a pillared porch with an entablature, and above it is a tall stairlight. At the rear of the service wings, there is a late 19th-century ornamental iron verandah. The stepped-back addition on the left side is two storeys high, with tall concealed windows at the ground floor and smaller sashed windows above. It also has a dentilled cornice and a parapet that conceals the roof. The Hargreaves family, known for their Broad Oak Printworks established in 1792, were the principal manufacturers in Accrington.