Tallest residential tower in Western Europe planned for London Docklands Greenland Group, one of China's largest premium residential developers, is launching Spire London designed by HoK in London Docklands. The building is a 235m (771ft) high 67-storey residential tower, the tallest in the UK and Western Europe, with concierge, retailing, residents' gardens and five-star lifestyle amenities including a 35th floor Spa and Club Bar.