Case study 11 Belgrave Road

© Max Fordham

11 Belgrave Road is being designed to meet the highest sustainability and wellbeing credentials. On completion in early 2024, it will take its place as one of London's most sustainable office buildings.

11 Belgrave Road will deliver 108,000ft² of Grade A workspace, 14,000ft² of communal spaces and best-in-class facilities, including a 3,300ft² café and 4,600ft² gym. In addition, 13,000ft² of exceptional green space will be seamlessly woven throughout.

The redevelopment aspires to be net zero carbon in both construction and operation, and to surpass the RIBA 2030 Climate Challenge target by 38%. The retention of a significant portion of the existing concrete frame of the building, as well as efforts to reduce environmental impact throughout the project, have resulted in predicted embodied carbon emissions of 466kgCO₂e per m² for the project, with 324kgCO₂e per m² for the refurbished areas, beneath the LETI target of 350kgCO₂e per m².

It is the first project in the UK to achieve a NABERS UK 5.5 design-reviewed target rating for in-use energy efficiency. In addition, 11 Belgrave Road has been pre-certified WELL Platinum and achieved a design stage BREEAM Outstanding rating.

The MEP strategy is focused on minimising carbon in operation and arming the building users with information and flexibility to aid this. Passive ventilation and thermal mass are supported by "smart" mechanical ventilation, with display screens to inform occupants of real-time energy use. Heating and cooling is provided by ASHPs located in the basement, which freed up an additional floor of useable space, and carbon filters improve air quality for the building users.

The project is also pre-certified Wiredscore Platinum and targeting Smartscore Platinum, which gives potential tenants assurance that the building will deliver an exceptional user experience, be adaptable to a particular tenant’s needs and be fully future-proofed so that the building can continue being used for many years to come.

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