The present-day City of Westminster as an administrative entity with its present boundaries dates from 1965, when the City of Westminster was created from the former area of three metropolitan boroughs: St Marylebone, Paddington, and the smaller Metropolitan Borough of Westminster, which included Soho, Mayfair, St. James's, Strand, Westminster, Pimlico, Belgravia, and Hyde Park. This restructuring took place under the London Government Act 1963, which significantly reduced the number of local government districts in London, resulting in local authorities responsible for larger geographical areas and greater populations.