One New Change is a major office and retail development in the City of London (the "City"), London, United Kingdom. It comprises a total of 560,000 sq feet (52,024 sq metres) of floor space, including 220,000 square feet (20,000 m) of retail space and 330,000 square feet (31,000 m) of office space and is currently the only large, modern shopping centre in the City. It cost £500 million to construct and was completed in October 2010. The centre is located at Cheapside, one of the areas within the City historically associated with retailing and markets, and is very close by St Paul's Cathedral. The nearest tube station is St Paul's (Central line), though Mansion House (District & Circle lines) is not much further, in the opposite direction.