Since the regeneration after the 1996 IRA bomb, and aided by the XVII Commonwealth Games, Manchester's city centre has changed significantly. Large sections of the city dating from the 1960s have been either demolished and re-developed or modernised with the use of glass and steel; a good example of this transformation is the Manchester Arndale. Many old mills and textile warehouses have been converted into apartments, helping to give the city a much more modern, upmarket look and feel. Some areas, like Hulme, have undergone extensive regeneration programmes and many million-pound lofthouse apartments have since been developed to cater for its growing business community. The 168 metre tall, 47-storey Beetham Tower, completed in 2006, provides the highest residential accommodation in the United Kingdom—the lower 23 floors form the Hilton Hotel, while the upper 24 floors are apartments. The Beetham Tower was originally planned to stand 171 metres in height, but this had to be changed due to local wind conditions.