Claim: Manchester One, located at 53 Portland Street, was one of Manchester's tallest buildings when completed (at 260 feet) but is now dwarfed by the CIS and Beetham Towers.
Evidence: The tower is located at 53 Portland Street from which it was named. It was one of Manchester's tallest buildings when completed, and has since been renovated as part of Manchester city centre's regeneration. It is now dwarfed by the CIS and Beetham Towers. At 80 m (260 ft), it is the joint eighth-tallest building in Manchester alongside the Manchester Civil Justice Centre.