A home with a simple and concise layout is the cheapest type of house to build. The following is a low-cost small house design that shows the size of the house is only 16*30. As you can see from the design, the contractor has tried to utilize all the corners to the fullest. We have a small main gate area that opens up to the Living Room, which has a kitchen, lobby, and attached toilets. There is one single bedroom of 10.2*8 designed in the back of the room, which also has a washing area that can also be used as a dressing cabinet.