Maple House on 37-45 City Road will be refurbished to create 70,000 square foot of Category A office accommodation. The work includes extending the north elevation and adding a fourth storey to create a more prominent frontage on City Road.
Complete is scheduled for summer 2015.
The project follows similar work in London by Willmott Dixon that includes the re-construction of an office behind an existing façade in Giltspur Street, Farringdon, for City & Guilds.
Willmott Dixon regional managing director Chris Tredget said: “Property owners like Helical Bar are investing in creating the high grade office environments that tenants require in London and are turning to our specialist knowledge and experience to deliver them. Building in London requires a high level of expertise for the unique conditions of working on tight sites with limited access to structurally challenging buildings; and we have a team of experts that can deliver to these exacting conditions.”