 The side streets to the north of Church Street lead to Williamson Square, while the Grade I listed Bluecoat Chambers—the oldest surviving building in Liverpool—is to the south along Church Alley.The Liverpool Athenaeum, an institution founded in the 18th century, is also on Church Alley.The area behind the shops on the south side of Church Street is now part of the Liverpool One shopping complex, which opened in October 2008 after the redevelopment of a large part of the L1 postcode area (hence the name).