New London Architecture

One Great St Helen’s

Built

A JRA office building, renewed and extended 25 years on to create 4,500m2 of high quality, sustainable offices with a roof terrace and new amenities.

JRA is refurbishing and extending One Great St Helen’s, a curved office building designed by the studio in 1998 in the City’s Eastern Cluster. The 4,500m² building is being updated with two additional storeys, a reworked entrance, CAT A finishes, amenities including a roof terrace, and enhanced sustainability, bringing it up to contemporary standards.


Project information

Status

Built

Borough

City of London

Size

4500 sq m

Completion

May 2025


Location

36 Great St Helen's, London EC2N 4AH, UK


Team Credits

Architect

John Robertson Architects

Client

Private Investor

Contractor

OD Group


Last updated on

12/06/2026


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