Case study Atomico Office

© Max Fordham

Atomico’s new London headquarters provides a workspace that ranks highly in sustainability, occupant wellbeing and acoustics. The client’s brief focused on how this 15,000ft² CAT B refurbishment in Rathbone Street, Central London, can best reduce the whole life energy use of their building and business.

The project has achieved Net Zero Carbon, in line with the UK Green Building Council’s Net Zero Carbon framework.

The refurbishment comprises an open plan ground floor, with a central auditorium space and a dining room served by an all-electric kitchen. Meeting rooms occupy the majority of the first floor with an enhanced fresh air rate compared to the Building Regulations, to maintain low CO₂ levels for optimum occupant productivity. Phase-change material has been used on specific wall surfaces to store energy from the VRF-based heating and cooling system and enhance thermal comfort. The upper floors are predominantly open plan offices, with enhanced fresh air rates, good daylight and dimmed LED lighting throughout. Smart building controls have been implemented to reduce wasted energy. A building energy dashboard is used to show real-time information on the performance of the building. A sound-masking system is also in place, to give a sense of acoustic separation and privacy throughout the office.

The project team created a whole life energy model for the project. The model included all travel-related energy (business and commuting), embodied energy, operational energy and construction site impacts for Atomico’s ten-year lease. Using a tool called the Energy Cost Metric, the information in this model was used to make the most cost-effective, and therefore most impactful, energy reduction decisions for the project. This allowed the team to compare the energy and carbon impact of building-related improvements, assessing their effectiveness and whether their benefits would offer a payback within the lifespan of the client’s lease. A key finding of this model was that there was no meaningful energy or carbon saving from replacing the existing heating and cooling system with a more efficient one, since efficiency reductions over the lifespan of Atomico’s lease would be smaller than the embodied energy/carbon of the new system.

The wellbeing brief was developed in the early stages of the project. A wellbeing audit of the client’s existing workspace was carried out through a site visit, interviews with key personnel, and facilitating wellbeing workshops to guide the process of incorporating wellbeing into the design. The acoustic design focused on providing conditions to support this occupant wellbeing. 3D acoustic simulations were used to evaluate and control noise-spill between areas. Bespoke “phone booths” with integrated acoustic finishes have been provided for collaboration in small groups and VC use. The result is a high-productivity, low-carbon office and an exemplary blueprint for future office retrofits.

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