One Canada Square Canary Wharf Management Ltd are responsible for the maintenance of the building. There are about 130 in-house and contract staff who maintain, manage, secure and clean the building. There are normally ten maintenance personnel on-site during working hours and three at night to attend to routine repairs and adjustments to the internal environment. Critical spare parts for the electricity, gas and water systems are kept within the building. One Canada Square has been 'named and shamed' for being the top building to leave the lights on unnecessarily. The research carried out by the BBC's "Inside Out" programme found that on
5 Canada Square another London location. The building was subsequently sold to St Martins Property Group in January 2013. From late 2016, Thomson Reuters is due to sublease 350,000 sq ft from Credit Suisse until 2020, consolidating all of its London operations under one roof for the first time. 5 Canada Square 5 Canada Square is a 15-storey, office building in the Canary Wharf financial district development of London, England. 5 Canada Square was completed in 2003. The steel-framed building has an aluminum curtain wall and it features a large atrium on its south side with of floorspace. The principal tenant at 5