Nature Prefab House in Vancouver from FabCab. Prefab house below has a traditional building structures, taking home a touch of natural style with an attractive characteristic. This house also has a contemporary interior style in warmth and comfort. A dedication to the concept of eco-friendly homes, forming a style of architecture in the Pacific Northwest. Size offered to the residential work is varied, the 300-450 square feet for small FabCabs, 450-600 square meters for FabCabs medium, for 600 square meters for large FabCabs +. FabCab first house, which was on display at Seattle Home Show in late February, is a 538 square foot home with open kitchen, living room, bedroom and bathroom, all priced around $ 85,000.