Six buildings and six products have been shortlisted to compete against each other for the Design Sense award, recognising sustainability in product design and architecture. The buildings are the Seawater Greenhouse in Tenerife designed by Light Works; the East Gate office buildings in Harare, Zimbabwe by `Pearce Partnership; Penoyre and Prasad's Millennium centre; Farson's process building in Malta by Short and Associates; the environmental offices at BRE by Feilden Clegg; and Hope House by Bill Dunster Architects. The products include Monodraught's Windcatcher; Artemide's e.light; and the Spring furniture system by Swedish company Galleri Stolen. The winner will be announced on 7 October. Design Sense is organised by the Design Museum.