350 Euston Road is an office building, part of Regent’s Place, located in the heart of London. Rethink Energy was in charge of the renovation of the cooling/heating system, using heat recovery heat-pump technology and high efficiency chillers controlled by an advanced management system. This installation is the first of such dimensions to be implanted in London. It led to energy/economic savings in excess of 70%, as certified by the client’s (British Land/Broadgate Estate) consumption control system. The case study was published by CIBSE (the Chartered Institution of Building Services Engineers) and included in the institution’s prestigious CIBSE Awards shortlist for “best commercial project”. For this project, Rethink Energy designed the mechanical, electrical and special installations and was responsible for the works direction.