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Fielden House


Location Client Cost Completion
London, UK Houses of Parliament £14.5m 2022

Project details

Fielden House is a 1930s purpose built office block within the Smith Square Conservation Area in Westminster. It is considered a building of merit, with its handsome architecture and sympathetic design that complements the domestic character of surrounding streets, contributng to the character and appearance of the conservation area.

The design proposals encompass the refurbishment and reorganisation of the building to offer flexible and adaptable open plan office accommodation within the constraints of a rigid structural layout. Access into and circulation within the building have been reconfigured and improved to provide a fully accessible and equitable experience to users and visitors, whilst achieving a very demanding security and environmental client brief. Proposals include the upgrade of the existing rear courtyard to a high quality accessible external space that complements the building users’ experience.

Proposals comply with:

  • Parliamentary Fire Safety Strategy, covering Life Safety, Property Protection and Business Resilience
  • Parliamentary Security and Digital Infrastructure Requirements
  • Parliamentary Diversity and Inclusion strategy
  • Estates Wide Engineering Infrastructure Resilience Strategy


  • explore options for maximising floor space and occupancy
  • provide a flexible floor plan, able to be used as either open-plan working space or different layouts of cellular offices
  • replace the life-expired heating, electrical and cooling systems
  • facilitate the possible use of smart working systems in flexible, reconfigurable office space

Integrated services

architecture, space planning, landscape architecture, civil and structural engineering, building services engineering, acoustics, lighting design, town planning, principal design, sustainability and BREEAM, BIM