This landmark skyscraper building provides office and retail space. The building was completed in 1991, is formed over 50 floors and stands 800 ft (244 m) high capped by a 130 ft pyramid with an aircraft warning light. The property has an average floor plate of 28,000 sq ft (2,601 sq m) and includes a 36 ft high marble clad lobby. The property was designed by architects Cesar Pelli & Associates and forms an integral part of the Canary Wharf Estate. The property is located at 1 Canada Square which is the centrepiece office tower in the heart of the Canary Wharf estate. Communication links are excellent with the Docklands Light Railway and London Underground Jubilee Line within short walking distance of the building.