1 Triton Square

London, NW1
British Land
Practical completion 2021
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 Longford House

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
  • Targeting BREEAM Outstanding - receiving BREEAM 2020 Award for commercial project - design stage