Refurbishment of the existing building for continued office use including the reconstruction of the rear ground extension; new rear terrace; rationalisation of plant equipment; replacement of windows; internal alterations; upgrades to services, fabric repairs and altered decorations; and conversion of the third and fourth floors to ancillary accommodation for The Mercers' Company (as per 15/01308/FULL and 15/01309/LBC).

Conversion of part of the ground floor to two flats, retention of the existing estate office at part ground floor level, installation of replacement windows at ground floor to match existing, and the provision of a new disabled parking space.