Arnos Grove is a London Underground station located in Arnos Grove in the London Borough of Enfield, London. It is on the Piccadilly line between Bounds Green and Southgate stations and is in Travelcard Zone 4. The station opened on 19 September 1932 as the most northerly station on the first section of the Piccadilly line extension from Finsbury Park to Cockfosters. It was the terminus of the line until services were further extended to Oakwood on 13 March 1933. When travelling from east of Barons Court and through Central London, Arnos Grove is the first surface station after the long tunnel section of the Piccadilly line. The station has four platforms which face three tracks. The station was designed by architect Charles Holden, and has been described as a significant work of modern architecture. On 19 February 1971, the station was Grade II listed. In 2005, the station was refurbished with the heritage features also maintained. In July 2011 Arnos Grove's listed status was upgraded to Grade II*. The station was awarded with the Best Newcomer and the Best Overall Garden in the Underground in Bloom 2011 competition and also in the London in Bloom competition. Location The station is located on A1110 Bowes Road, serving a medium-sized residential area. Arnos Grove is the first surface station after the long tunnel section which starts east of Barons Court and passes through Central London. The station and surrounding neighbourhood of Arnos Grove take their names from the Arnos Grove estate, which was to the north of the station. The station is part of the Arnos Grove group of stations, comprising all seven stations from Cockfosters to Turnpike Lane, and the management office for the group is in Arnos Grove station. Linked to the station by a lineside passageway is Ash House, which is a drivers' depot. Nearby attractions include Arnos Park, Broomfield School and Bowes Road Library. Arnos Grove is known for its circular ticket hall and as a quiet, peaceful and green neighbourhood until the 1960s. When the Piccadilly line extension came, Edwardian villas were built in the area. History The Great Northern railway (GNR) and its successor, the London and North Eastern Railway (LNER), for many years refused consent for any extension into the suburbs of Haringey and Enfield. In 1902, parliamentary approval was obtained to ban any further extensions of London Underground lines northwards from Finsbury Park.