The Conley family has secured planning approval from Westminster Council to revamp Shell Mex House, 80 Strand, WC2.
The Grade II listed art deco property will have a new entrance pavilion added as well as a two-storey conservatory-style space for the inner courtyard.
In addition, new roof terraces will be created and four floors of office space will be refurbished.
Designed by Duncan Mitchell Architects and PDP London, the revamp will reposition the 90-year old building to attract new occupiers.
Cushman & Wakefield is marketing 160,000 sq ft across floors 1-4, which will become available this year with oil and gas giant Shell’s lease expiry.
The 550,000 sq ft building has some of the largest floorplates in the West End, at an average of 40,000 sq ft.
The Conley family acquired the property via German family investment vehicle Sirosa in 2013 from Westbrook for £610m, reflecting a net initial yield of 4.2%.
The other main tenant in the building is educational provider Pearson.
To send feedback, e-mail louise.dransfield@egi.co.uk or tweet @DransfieldL or @estatesgazette
