Mole Architects designed and delivered three linked buildings in the heart of the new neighbourhood of Eddington, including a health centre, offices and postgraduate apartments. The buildings were designed as part of a complex mixed-use urban block, which incorporates a range of uses serving a new city district. Other buildings within the block were designed by our partnering architect Wilkinson Eyre. Light-filled and tightly planned, the duplex apartments feel spacious, defying their relatively modest footprint, and incorporating best practice guidance from the London Housing Design Guide. The project was driven by the client’s sustainability aspirations with all residential dwellings designed to Code for Sustainable Homes Level 5 standard and all non-residential areas achieving BREEAM Excellent. The sustainable design criteria included high daylight and fabric energy efficiency standards (FEES), with each junction thermally modelled to achieve the required thermal bridging performance, and each window analysed for daylighting and over-heating performance. The dwellings are all naturally ventilated and served by the district combined heat and power energy centre.