Buttonville Municipal Airport or Toronto/Buttonville Municipal Airport is a medium-sized airport in the neighbourhood of Buttonville in Markham, Ontario, Canada, north of Toronto. It is operated by Torontair. Due to its proximity to Toronto's suburbs, there are several strict noise-reduction procedures for aircraft using the airport, which is open and staffed 24 hours a day, 365 days a year. In 2014, Buttonville was Canada's 20th busiest airport by aircraft movements. There is also a weather station located at the airport. The airport is classified as an airport of entry by Nav Canada and is serviced by the Canada Border Services Agency (CBSA) on a call-out basis from Oshawa Executive Airport during weekdays and Billy Bishop Toronto City Airport during weekends. CBSA officers at this airport handle general aviation aircraft only, with no more than 15 passengers. History Fred F. Gillies was the operator of Buttonville Airport and Gillies Flying Service starting in 1953 until he retired in 1958. Buttonville Airport began to really grow as a grass airstrip in 1953 when Leggat Aviation moved its operations from Barker Field in Toronto. The airstrip became an official airport in 1962. The airport is located in the community and former police village of Buttonville, Ontario, which is named for settler John Button. Part of the airport property is located on land once held by Button. New air traffic control tower On January 17, 2006, Nav Canada announced plans for the construction of a new air traffic control tower at Buttonville Airport. It is located at the south end of airport next to FlightExec offices on Allstate Parkway. The new tower, representing an investment of over $2 million, replaced the existing facility, which was built in 1967 and had reached the end of its useful life. Construction began in the fall of 2006 and became fully operational on June 26, 2007. The new tower provided expanded operational space, optimal visibility and the latest in air navigation equipment and technology for 10 air traffic controllers and one support staff who provided service to 84,000 aircraft movements per year at Buttonville Airport. It is located on the south side of the airport – the opposite side of the old tower. The new tower was designed and built using a modular design enabling the facility to be relocated in the future. New equipment and technology include the Nav Canada Auxiliary Radar Display System and the company's