prototype design) The first prototype to be unveiled was the motor industry contribution, a steel panelled experimental temporary bungalow called the Portal after the minister of works, Lord Portal. With a floor area of , and an estimated cost of £600 constructed, and £675 fully furnished. It included a prefabricated slot-in kitchen and bathroom capsule, that included a pre-installed refrigerator. The proposed rent was 10 shillings (50p) a week for a life of ten years. Airey Developed by Leeds based construction magnate Sir Edwin Airey, it was easily recognisable by its precast concrete columns and walls of precast shiplap concrete panels. Due to its variation of design, available with a flat or pitched roof, and with variations for rural or urban sites; it became one of the most prolific of the permanent designs. Arcon (THP) Developed and constructed by Taylor Woodrow, the Arcon was an asbestos-clad variant of the Portal, with the same prefabricated kitchen and bathroom capsule. It had a longer life, but also came with a higher cost of construction. The later rolled top roofed Arcon Mk5 was developed by Edric Neel. 38,859 were constructed through the programme. The two bedrooms were approximately the same fairly generous size with picture windows which included an opening window. The kitchen was fitted with steel cupboards, drawers and an integral sink unit. A side door entered directly into the kitchen. A gas copper, gas oven and hob, and a fitted-in gas fridge were incorporated into the inbuilt steel kitchen units. A drop-down wall-fitted table adjacent to a built-in larder was opposite the built-in units. The lounge had an open coal fire, the heat from which heated a back boiler, thus giving "free" hot water. The bathroom had a full-size bath and fitted steel cupboards. There was a separate toilet. The lounge and both bedrooms had steel built-in cupboards and drawers. Arcons were so well fitted (in Debden, Loughton, Essex) that the only furniture necessary were beds, kitchen chairs, lounge seating and floor coverings. Chain-link fencing, a gate and a coal shed built with corrugated steel from Anderson shelters and brick front and rear walls was also provided. Gardens were of sufficient size to grow vegetables, and many early residents quickly erected a chicken run. AIROH (THP) The AIROH (Aircraft Industries Research Organisation on Housing) house was a , ten tonne all-aluminium bungalow assembled from four sections, each to be delivered to