Five British firms are among six practices competing for the smart home of the future award
The designs have been shortlisted from more than 200 submissions to the competition, part of the Sunday Times British Homes Awards.
Members of the public are now voting for their favourite, with entries closing on 13 August.
Cardiff-based Pentan Partnership submitted the modular construction S, M, L home, which it says can be built for less than £100,000.
The Flexi Home, by London firm Meadowcroft Griffin Architects, is built around a double-height light void and includes floor-to-ceiling windows.
Surrey firm Architect 8 has designed the Responsive House, which is insulated with hemp and wood fibres and warmed by the sun through south-facing glass.
Our House, from North London practice More Design, has an upside-down configuration with a bedroom next to the car port on the ground floor, and living room, kitchen and winter garden on the second floor.
Deverill-Jenkins from London has created the The Stromal House with a glazed staircase that produces electricity every time it is walked on and has photovoltaic cladding.
The Street Smart house from Swedish practice White Arkitekter is controlled by a single system that can be accessed from anywhere inside or outside the home.