Kennington is a district in south London, England. It is mainly within the London Borough of Lambeth, running along the boundary with the London Borough of Southwark, a boundary which can be discerned from the early medieval period between the Lambeth and St George's parishes of those boroughs respectively. It is located 1.4 miles (2.3 km) south of Charing Cross in Inner London and is identified as a local centre in the London Plan. It was a royal manor in the parish of St Mary, Lambeth in the county of Surrey and was the administrative centre of the parish from 1853. Proximity to central London was key to the development of the area as a residential suburb and it was incorporated into the metropolitan area of London in 1855.