Project 2337
11 Belgrave Road
The transformation of a flawed, unloved 1950s commercial building into a workplace of the future, retaining 35% of the structure and adding an additional floor and generous garden terraces.
Location
City of Westminster
Client
Quadrum Global
Architect
Eric Parry Architects
Status
Complete (2024)
Feature
Key features
Optimising retained existing structure
We retained 35% of the structure whilst removing internal columns and reconfiguring the lift and stair cores.
31% additional floor area
Achieved by extending the existing floorplates and adding a new penthouse office floor in steel and CLT.
A unique approach to supporting retained slabs
The existing tapered RC propped cantilevered slabs are re-supported off the new extension's post-tensioned slabs.
A new double-height entrance atrium
Created by cutting away a section of the first floor slab.
Complex temporary works
With all internal columns removed, the concrete columns have been strengthened and fire protection of the existing slabs have been increased.
Structural embodied carbon
238
kgCO2e/m2
35% of the existing structure retained
Awards
2025
BCO London Awards
ESG Award
Won
2024
Building Awards
Retrofit Project of the Year
Won
2024
ESG EDGE Awards
Outstanding Carbon Reduction Initiative
Won
2024
Constructing Excellence
Building Project of the Year over £20 million, ESG, Climate Action
Shortlisted
2024
NLA Awards
Retrofit
Shortlisted
Photography by Dirk Lindner
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