180 Great Portland Street

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

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

Winner of the 2008 BCO Award for Innovation

Awarded BREEAM “Very Good”

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 Under Floor approach, this ensured that the offices were able to 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

floor plan_ before  floor plan_after