Case Study

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180 Great Portland Street

London, UK

Stunning refurbishment of historic London property from cellular offices to modern open plan work space.

Total Area

9,000 sq m

System
CAM-C Underfloor supply, underfloor return air

2008 Refurbishment

Stunning refurbishment of former Edwardian residential mansion block in the heart of London’s West End, the building was transformed from cellular offices into five stories of high class, open plan accommodation.

The development brief was to maximise lettable space, whilst minimising material and construction costs. The project had particular-challenges with restricted headroom, structural and facade limitations. Sustainability played an important role in the brief, with the specification of the building services having to allow for future flexibility whilst offering potential energy savings. By adopting the underfloor approach, this ensured that the offices could provide optimum comfort cooling and maximum versatility for speculative tenants.

The flexible under floor HVAC solution allowed a minimum floor plenum of 200mm maximising the floor to ceiling height and post refurbishment, the work space enabled a 35% increase in total occupancy.

Winner of the 2008 BCO Award for Innovation

Awarded BREEAM “Very Good”

Client – Great Portland Estates
Architect – Lifshultz Davidson
Consultant – Cundall
Project Managers – Buro Four
QS – Davis Langdon


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