Helical Bar has let the remaining floor in the 150,700 sq ft first phase of the Bower development on Old Street roundabout, EC1 (pictured).
Online payments company Stripe Payments has signed a five-year lease for the seventh floor.
Work has now started on phase 2, The Tower, which will deliver a further 177,300 sq ft of offices. Helical announced last November that it had agreed to buy out joint venture partner Crosstree Real Estate Partners for £248m and take control of the development.
