The practice walked away with a 50,000 euro (£35,000) cash booty after winning the UK leg of the competition.
The other winners were Andrade Morettin Arquitetos Associados, appointed for a site in Brazil, and David Knafo Tagit Klimor from Israel, appointed for a site in China.
Last year's victor, fellow Brits Piercy Conner, is already well under way with its environmentally-friendly housing scheme in Kolkata, India.
Australian architect Glenn Murcutt was among this year's competition jury - a panel chaired by Andrew Ogorzalek.
Speaking about CPA's designs, Ogorzalek said: 'The jury appreciated UK winning firm Cartwright Pickard Architects' concentrated effort to design a comprehensive family of suitable dwellings using off-site modular construction.
'The jury looks forward to a collaborative development process among the architect, developer and steel fabricators, with this design being the vehicle to both meet the needs of the UK market and advance the proposed modular strategy,' he added.
The project is expected to start on site as early as next year.