The London-based practice, backed by developer Barratt Homes, beat an impressive shortlist which included Feilden Clegg Bradley Studios, PRP Architects, Proctor Matthews, Acanthus Ferguson Mann, and Broadway Malyan.
Set up by English Partnerships (EP), the Carbon Challenge competition called for proposals to design 200 net-zero-carbon homes (equal to the Code for Sustainable Homes' Level 6) on the 6.6ha Hanham Hall site.
HTA director of building design Steve Newman said: ‘It is going to be very difficult to achieve true zero carbon, but we’ve always been aware of that.
‘I think EP chose our scheme because it was slightly more sympathetic to the site. We usually push for higher densities, and that makes achieving zero carbon easier, but here we went for a more suburban design.’