Engineers William Crawford and Peter Brewin have developed a building in a bag that requires only water and air for construction, intended for emergency shelters, and Concrete Cloth, a flexible mat that will harden to a concrete surface on the addition of water.

Len Peltier presents photographs, a plan, and links to related sites on this space-saucer modular home designed by Finnish architect Matti Suuronen in 1968.

Mobile living units, which can be placed on flat roofs by helicopters or cranes, designed by Werner Aisslinger. Pictures and information on available features.

Mobile, low cost and functional - a new species of pre-fabricated structures designed by Edgar Blazona.