Plaistow is a suburban area of East London, England, within the London Borough of Newham. It adjoins Upton Park to the north, East Ham to …Plaistow is a suburban area of East London, England, within the London Borough of Newham. It adjoins Upton Park to the north, East Ham to the east, Beckton to the south, Canning Town to the south-west and West Ham to the west. Plaistow And Newham was originally a ward in the parish of West Ham,hundred of Becontree, and part of the historic county of Essex. Since 1965, Plaistow has been part of the London Borough of Newham, a local government district of Greater London. The area forms the majority of the London E13 postcode district. Plaistow North and Plaistow South are two of the ten electoral wards making up the UK parliamentary constituency of West Ham.