Upton Park is an area of the East London borough of Newham, centred on Green Street which is the boundary between West Ham and East Ham. West Ham United Football Club formerly played at the Boleyn Ground, commonly known as Upton Park. The term 'Upton Park' first applied to a housing estate developed to the east of West Ham Park in the 1880s. The estate took its name from the adjacent village of Upton with the suffix 'Park' added for marketing reasons.