Barr Gazetas - Award Winning London Architect

Holbein Gardens Belgravia

Holbein Gardens is one of London’s most sustainable office developments, proving the huge potential for transforming outdated office stock into exemplary workspaces

In Numbers

  • 25,000 sqft refurbishment and extension
  • 500 kgCO2/m2 embodied carbon target
  • 69% operational carbon saving compared to a traditional office building
  • 99.95% strip out waste diverted from landfill
  • 2030 future-proofed for net zero operational carbon
  • 39% embodied carbon saving by retaining the existing façade, equivalent to 59 tonnes of concrete

About Holbein Gardens

The designs focuses on retaining the existing 5 storey structure, re-use of materials and introduction of extensive greening, to result in one of London’s most sustainable office buildings providing 25,000 sq ft of high quality, flexible and sustainable workspace.

An early whole life carbon assessment minimised upfront embodied carbon, meaning the development will meet the LETI Pioneer Project embodied carbon target of 500kgCO2/m2.

This has been achieved through the façade retention and trialling new low embodied carbon products including CEMFREE Concrete, Thermalite aircrete blockwork and reclaimed raised access flooring. Opportunities to recycle steel are being explored and cross-laminated timber will be used in the creation of the extension.

The in-use energy efficiency of the all-electric scheme will be enhanced through effective lighting and mechanical equipment, on-site renewable energy generation, blue roofs and sustainable urban drainage systems.

The scheme will contribute to Grosvenor’s goal for all managed buildings to be net zero operational carbon by 2030 and to increase biodiversity in Mayfair and Belgravia.

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