Our Sustainability

ESG highlights


99.95% of waste diverted from landfill, equating to 184.8 tonnes. Equivalent to the weight of 30 elephants.



Saving 59 tonnes of carbon

By retaining the existing façade Holbein Gardens is saving 59 tonnes of carbon, equivalent to the emissions of 557 return flights from London to Amsterdam.


100% Electric Energy

As LETI members we pledge to set London on course to a zero carbon future. Holbein Gardens’ 100% all-electric design reduces carbon through optimisation of lighting, mechanical equipment and on-site renewable energy generation.

50% energy saving compared to a typical London office.

5,893 plastic bottles

Saving 488kg CO² per year through renewable energy, equivalent to 5,893 plastic bottles

By using renewable energy, Holbein Gardens will save 488kg CO² per annum which is equivalent to the carbon footprint of 5,893 plastic bottles.

39% of global carbon emissions come from buildings and construction. Holbein Gardens recognises the part that we play. Through our commitment to reduce, reuse and recycle, we aim to help pave the way to a greener tomorrow and a cleaner London.

BREEAM Outstanding, placing within the top 1% of new non-domestic UK building.

Sustainable Design


Your Developer’s Sustainability Commitment

Grosvenor’s Commitment

Sustainibility Specification

Sustainable offices Sloane Square
  1. BREEAM Outstanding
    Quadruple environmental certification
    BREEAM Outstanding, WELL Enabled, Nabers 4.5 and targeting EPC A rating
  2. Extensive greening
    providing 135% significant net biodiversity gain
  3. Photovoltaic panels
    at roof level to generate additional electricity - 17% of the building's maximum demand
  4. Smart ventilation
    strategy for balancing user comfort and energy performance
  5. Improved fenestration
    to optimise natural daylight, reduce artificial lighting requirements and energy demands
  6. Accessible terrace
    areas with opportunities for building users
  7. Extensive landscaping
    at ground floor improving ecological value and contributing to improved local air quality
  8. Retained existing structure
    and reuse of 13.5 tonnes of steelworks to reduce embodied carbon emissions
  9. Reclaimed raised access flooring
    reducing upfront embodied carbon emissions
  10. Multiple green walls
    contributing to improved internal air quality
  11. Reclaimed brickwork
    with lime based motar for improved disassembly
  12. Enhanced cycle storage
    and end of trip facilities for users
  13. Cross-laminated timber structure
    for the extension reducing upfront embodied carbon emissions
  14. All electric heating and cooling
    solution with 100% green energy procurement
  15. Blue roof
    designed for the retention of rainwater above the roof to reduce surface water discharge to 2 litres
  16. Exposed concrete slabs
    to improve thermal mass and passive design performance