21 Moorfields

A regeneration project delivering two large office towers targeting a 15% reduction in embodied carbon.
Climate Change Mitigation Resource Use Advancing Net Zero Case Studies

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Project Overview

A regeneration of the Moorgate area on a brownfield site at 21 Moorfields, located directly above an existing London Underground station and a future Crossrail ticket hall.  

The development covers approximately 564,000ft² and is arranged as two office buildings, east and west. It will become the new London headquarters for Deutsche Bank, incorporating retail and commercial office space, improved pedestrian permeability via a reconfigured highwalk and a new public square with retail and improved landscaping. 

Location

UK

UK availability

Yes

Date added

Jun, 2021

Project partners

Landsec, Wilkinson Eyre, Cundall, Gleeds, Targeting Zero

Project status

To be completed 2022

Project size

52,000 sq m

Links

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Case Studies submitted by

Landsec
Cundall
Targeting Zero LLP

Highlights

  • Monitoring all carbon emissions throughout the life of the building: LCA modules A1-A5, B1-B6, C1-C4 
  • Target 15% reduction in embodied carbon at practical completion – 85,380 tonne CO2e (1,335 kg CO2e/m2); whole life carbon (60 year lifespan) has been calculated at 193,785 tonne CO2e 
  • WRAP recycled content for the scheme is 19% – 21%. 

Approaches Used

  • The lifecycle assessment (LCA) was carried out in accordance with BS EN 15978, CEN/TC350 and EN 15804, and included embodied carbon impacts associated with the cradle-to-grave stages. 
  • The building sits on the existing slab of a demolished pre-existing 1960’s building making the foundation works less onerous when compared to other similar central London buildings’ carbon footprint. 
  • A range of carbon reduction options covering architectural, services and structural components and systems will be generated. Proposals include: 
    • Timber curtain walls, timber internal frame, 90% recycled content aluminium external capping. 
    • Louvres with perforated blades (16% carbon footprint abatement against standard airfoil blades).  
    • Metal cladding elements with lower carbon footprint. 
    • Superstructure steelwork with high recycled content. 
    • Steel reinforcement with high recycled content, rebar with 98% recycled content – approximately two-thirds less carbon intensive than standard rebar. 
    • Alternative concrete mixes:  
      • Cores and other structural concrete elements: concrete with 20-50% cement replacement recycled aggregate  
      • Piling: concrete with 20-70% cement replacement with recycled aggregate. 
      • Upper floors: concrete with 50% cement replacement with lightweight aggregate: e.g. Lytag.
    • To encourage the specification of building products with an Environmental Product Declaration (EPD). 
  • The project will include whole life carbon benchmarking against other similar projects. 

For Further Information:

Please contact:  press@wilkinsoneyre.com

Related members

Landsec

Cundall

Targeting Zero LLP

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