Carbon Management Employer’s Agent Project Management Quantity Surveying Commercial Residential

Beech Street

Carbon conscious repurpose of existing office building

At a glance






Allford Hall Monaghan Morris



Structural and Civil Engineer

Whitby Wood

MEP Consultant


Circle leading the Lifecycle Carbon studies, presenting the carbon calculations to the City of London to allow the planning journey to progress.

Proposal for an all electric co-living refurbishment of an existing office building on the edge of the Barbican estate. Circle are leading the carbon and cost management during the pre-planning design stages, including the production of a detailed life cycle carbon assessment, for both planning and BREEAM evidence.
Carbon movements trackers are presented fortnightly, alongside work in progress cost trackers – equipping the client team with the information to make informed design decisions influenced by both carbon and cost. Through efficient design, re-use of existing and material selection the target is to achieve GLA Aspirational A1-A5 embodied carbon.

Project highlights

35 %

Less embodied carbon when compared to new build

1,700,000 kgCO2e

Saved by retaining existing building

1,400 Family Cars

Equivalent carbon production saved

41 %

Operational carbon savings

4,300,000 kgCO2e

Saved by replacing current M&E systems (60 years reference period)

HUB3 scaled
HUB5 scaled

Target to achieve GLA ‘Aspirational’. Circle undertook detailed cost studies to establish the viability of the co-living proposal, and worked with the design team on material choice, massing and where elements of re-use and retention could maximise both cost and carbon efficiencies.

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