Considerable work was carried out to the mechanical installation to service the new layouts. In addition, the existing system was supplemented with a bespoke 'smoking' mechanical system in the communal areas; this was separate from the main supply and extract system. The design for this was based on a low-level low velocity supply, which reduces the amount of contamination spilling to other parts of the open plan area. This involved considerable co-ordination of the services especially where structural voids were created in the slab. Almost 5,000 sq. ft. of space on the 10th floor was removed.

To make the project financially viable it was paramount that Ogilvy were in residence for the duration of the works. The project was constructed in five phases; each lasting between 8 and 12 weeks with Ogilvy employees being relocated between each phase to keep disruption to a minimum.

Ogilvy & Mather............London, England