Discrete security secondary glazing was incorporated into the refurbishment and repainting (in their original 1830s pale stone colour) of the sash windows, and the project was topped out with a new scheme of subtle external lighting onto Whitehall, and the repaving and accessible ramping of the entrance courtyard.

The first phase, run as a Construction Management Contract under Gardiner & Theobald, was concluded by the installation of a fire-suppression ‘misting’ system in the roof space above the great
Rubens/Inigo Jones’ ceiling, and the fixing of new horizontal flagpoles over Whitehall, with flags designed to honour both artists.