The CIS Tower is an office skyscraper on Miller Street in Manchester, England. It was completed in 1962 and rises to 387 feet (118 m) in height. The Grade II listed building, which houses the Co-operative Banking Group, is Manchester's fifth-tallest building and the tallest office building in the United Kingdom outside London. The tower remained as built for over 40 years until maintenance issues on the service tower required an extensive renovation which included covering its facade in photovoltaic panels.