The London Borough of Harrow is a London borough of north-west London, England. It borders Hertfordshire to the north and other London boroughs, such as Hillingdon towards the west, Ealing to the south, Brent towards the south-east and Barnet towards the east. The local authority is Harrow London Borough Council.
Harrow Urban District was formed in 1934 as an urban district of Middlesex by the Middlesex Review Order 1934, as a merger of the former location of Harrow on the Hill Urban District, Hendon Rural District and Wealdstone Urban District. The urban district gained the status of municipal borough on 4th May 1954 and the urban district council became Harrow Borough Council. The 50th anniversary of the incorporation as a borough was celebrated in April 2004, which included a visit by Queen Elizabeth II. In 1965, the municipal borough was abolished and its former area was moved to Greater London from Middlesex under the London Government Act 1963 to create the London Borough of Harrow. It is uniquely the only London borough to copy precisely the unchanged boundaries of a single former district. This was likely because its population was big sufficient. The borough covers a total area of 19.49 square miles.
According to population estimates from the middle of 2014, it has a permanent population of about 246011 people. Its site on and near the greenbelt and convenience to central London makes Harrow a good place to reside not merely for families but affluent singles too. Increasing property rates in all London places have helped to determine a big rise in house redevelopment of its existing Edwardian and 1920s to 1940s housing.