Valence House was once the manor house for the largest estate in Dagenham. The present building is early C17th and stood in 5 acres of gardens and orchards, surrounded by a moat. In 1921 the London County Council purchased Valence lands for the Becontree Housing Estate but in 1926 leased then sold the house and immediate grounds to Dagenham UDC; it now contains the Council's Museum and O'Leary Gallery. Fragments of the north and east edges of the grounds survive, as does part of the angle of the moat; the grounds have C19th Holm oak and yew, and a period-style Herb Garden opened in 1992 in the former Victorian kitchen garden. In 1926, the LCC laid out 24 acres of the old Valence lands as a public park, two-thirds for informal recreation with open space, grass and some trees. Various facilities were provided, a bandstand and formal planting, but the majority has now gone, including its open-air swimming pool, which closed in 1971.
