3 Harbour Exchange forms part of the Harbour Exchange Estate within the Isle of Dogs – the central office district of London’s Docklands. The Estate lies directly to the south of Canary Wharf on the eastern side of the Millwall Inner Dock, above which Harbour Island is constructed. The building is located 0.1 miles from South Quay Station (DLR) and 0.6 miles Canary Wharf Underground Station (Jubilee line and Crossrail).