Road, in the north to Revelstoke Road, in the south, and the streets run from Elsenham Street, in the west, to Astonville Street (although Merton Road to the east of Astonville is the border of "The Grid"). "The Grid" consists mostly of Edwardian terrace houses and purpose built maisonettes. Some houses have been converted into flats in the past, although conversions are no longer permitted on The Grid owing to a change in policy by Wandsworth Borough Council. These Victorian terraced houses were built at the same time as the bordering terraced housing Wimbledon Park and the avenues to the south of The Grid originally had the same names as the streets in Southfields that led to them. A restrictive covenant or covenants at one time prevented any pubs from being built in the Southfields "Grid" area. However, in the 1990s, the covenants were apparently judged either to be ineffective or non-existent and two pubs were opened in adjoining premises on the south side of Replingham Road (one since closed, in late 2011). The building on the corner of Kimber Road and Merton Road once housed the OK Sauce factory, until its takeover by Reckitt and Colman court. Toponymy Southfields takes its name from the old manorial system, where it was known as the South Field of the manor of Dunsford. The earlier name for the area dates back at least to the year 1247. The equivalent North Field lay between West Hill and the River Thames and survives in the short road named Northfields which runs to the east of Wandsworth Park. Governance Southfields is one of the 20 wards that make up the London Borough of Wandsworth, and it supplies three of the Borough Council's 60 councillors – the Conservative Party's Kim Caddy, Guy Humphries & Terry Walsh. It is part of the Merton and Wandsworth constituency for the London Assembly. Southfields falls within the parliamentary constituency of Putney. The current Member of Parliament for the constituency is the Labour Party's Fleur Anderson, who was elected in 2019 with a majority of 4,774. Geography Southfield's postcodes are split across the London Boroughs of Wandsworth and Merton. Of the two main parks, the above applies to Wimbledon Park whilst the second, King George's Park is situated wholly within the boundaries of Wandsworth. Tennis being a part of the fabric of Southfields life, both parks are home to a large