Brighton-based architect Alan Philips Associates has revealed designs for an environment-friendly "Smart House". A prototype house, currently on site in Brighton, is a seven-minute walk from the city's mainline station and is due to be completed by spring 2004. The zero-energy dwelling is a single-storey, single-frontage unit that provides 1000 ft2 of space, two bedrooms and natural daylight and sunlight throughout. Future Smart Houses will have a 28-week lead time subject to site specific planning and excavation requirements.