External and internal alterations including conversion of existing below pavement vaults to provide additional office floorspace, alterations to the lift core, and alterations and installation of mechanical plant at roof level (site includes 36 and 38 Grosvenor Gardens).

Installation of mechanical plant and associated alterations at roof level. Internal alterations in connection with the refurbishment of the building including the conversion of the existing below pavement vaults to provide additional office floorspace and alterations to the lift core.