Timber frame and structural insulated panel system (SIPS) construction are proposed by two of the three bidders selected to build £60,000 Design for Manufacture homes on the first four sites in the UK.

Barratt Developments plc, George Wimpey UK and the SIXTYK Consortium (a Crest Nicholson and Kingspan Offsite partnership) beat competition from three other bidders to win English Partnerships approval to build homes on four of the 10 publicly-owned competition sites.

George Wimpey proposes that 56 £60,000 homes out of 145 should be built at the Oxley Park site in Milton Keynes. Its proposal offers three construction options – brick and block, steel frame and timber frame – and in its submission the company said it aims to reduce the plot build timescale to 31 days using open panel timber frames.

The SIXTYK Consortium plans to build 21 £60,000 homes out of a total of 68 at the Renny Lodge site. A SIPS construction will be used for the walls and roofs of the houses and apartments and the primary superstructure will be delivered to site in kit form.

The first four competition sites will see more than 500 homes built, at least 30% of which will be £60,000 constructions.

The preferred bidders for six more sites are due to be announced in January.