In the 19th century, the Buckle family had sold their estates to the Perceval/Arden family, who in turn sold them to the Colman family, of mustard fame. In 1923, the Nork estate was sold to a development company and Nork House itself was demolished in 1939. Housing development became rapid after 1923, and in 1925 the Nork Residents' Association was formed, publishing the "Nork Quarterly", a bulletin that still appears regularly today. Nork began to be used as an official place name outside of the park itself from 1965 when Banstead was divided into two wards named "Banstead Village" and "Nork", equal in population and number of councillors.