Project description: A low carbon, sustainable property development in Kelham Island, Sheffield. Consists of 153 one-to-four bedroom homes, plus a variety of creative spaces, shops, cafes and galleries.
Contractor: Bay Construct Ltd
Project Details: At Little Kelham, 109 homes will be built to Passivhaus standards, which allows for both significantly cheaper energy and a smarter way to consume it. Little Kelham is Britain's largest passive house development winning numerous awards including "Built Environment" for the Guardian Sustainable Business Awards 2014.
Wall U value: 0.11 W/m2k
Roof U value: 0.11 W/m2k
Floor U value: 0.13 W/m2k
Air Tightness: Below 0.6 3/hm2@50pa