77 Coleman Street 77 Coleman Street entails the refurbishment of the existing office building at 77 Coleman Street, located in the City of London. The new office accommodation is arranged over 1st to 7th floors, with retail units at ground and lower ground floors. The basement level consists of the plant rooms, showers, bike store and general storage areas. The new build expands the available volume of lettable offices. 77 Coleman Street is a 42 week project and is due to start on site November 2018.