In contrast to conventional caravans, this "marquee" type provides scope far extension by allowing the side walls to be folded down. The 2.2 x 4.5 m core, which accommodates the kitchen, dining space, bathroom and WC, can thus be enlarged to the size of a small house 4.5 x 6.6 m on plan. The extension areas on both sides are covered with folding tent roofs. These can be pulled down like an accordion to any required height.