1,600 people in 24 cities living 4 values for 1 goal:
To use design to help our clients succeed.

We create exceptional environments that meet our clients' most complex design challenges.

We inspire people through our work by expressing timeless cultural, organizational and personal values.

We connect people and place with ideas that come from many minds and imaginations.

We care about serving our clients, enriching lives, improving communities and protecting our natural environment through design.

We are a global architecture, design, engineering and planning firm.

60+ Years of Design + Innovation

An Updated Office in a Historic Structure

Ministry of Defence Main Building
London, UK

Designed by Vincent Harris in 1915 and constructed after WWII, this neo-classical, Grade I-listed building retains a number of historic spaces, including a 16th-century vaulted undercroft and several 18th-century rooms.

HOK’s renovation design creates a contemporary, efficient work space for more than 3,300 government staff members while retaining and restoring the building’s unique original features. The open-plan environment supports interaction, communication and collaboration in less hierarchical workspaces, transforming the work processes of the Ministry of Defence.

The historic rooms from Pembroke House and Cromwell House, which were rebuilt in their current location in 1951, have been carefully restored. Entrances, halls and lobbies reflect the historic character while incorporating updated security features.

The team completed the project within the budget and two months ahead of schedule.


1 million sq. ft. / 92,904 sq. m.


Interior Design