Fraser Bond are the leading lettings and property management agents for 78 St James's Street - London SW1A. 78 St James's Street is a Grade II* listed building in St James's, London SW1. The building will be redeveloped to offer 110,000 sq ft of office accommodation and a pavilion extension and rooftop terraces with views across London’s Westminster and Green Park. New Office Space The Squire & Partners designed scheme will deliver premium Grade A office accommodation on floors of up to 18,500 sq ft and with clear heights of 2.8m. Facilities The Grade II* listed section of the building will be.