1 Triton Square

London, NW1
British Land
Planning consent 2017; On site
313,000 sq ft NIA
Confidential
Office, retail, gym

Arup Associates, Architect, Structural engineer, MEP engineer
Aecom, Cost consultants


Built in the 1990s as a state of the art banking facility, the refurbishment of 1 Triton Square provides the amenities, flexibility and additional floor area to support a diversifying occupier profile on the campus.

M3’s involvement began with feasibility studies to evaluate redevelopment or refurbishment options for the building, taking into consideration a number of constraints, such as staggered lease expiry, retaining community facilities, the view corridor and local views, and minimising disruption to campus-wide operational functions. The preferred solution adapted the highly bespoke building to provide updated, flexible office spaces, through creative infill and a three storey extension.

As well as leading the team through the feasibility, design, town planning and procurement, M3 assisted in the vacant possession strategy and the successful pre-let of the offices.


Related projects
Regent’s Place, 1 Triton Square and St Anne's

Project highlights


  • Achieving uplift of 135,000 sq ft net offices within the existing structure
  • Introducing 10,645 sq ft of affordable workspace along with retail improvement
  • Selecting and steering the team through a complex design and planning application process
  • Securing a pre-let for the offices above ground
  • Managing relocation of the Central Management Office and extensive enabling works