Design collection of the 4th year architectural program students of Khon Kaen University in the Vernacular Architecture II course presented the ways to create an accommodation that responds to small-sized families through the design of a house that answers the problem and needs so that the quality of life of people living in it increases while the load from construction costs decreases under the budget of construction materials (excluding labor and other management costs) to a maximum of 500,000 baht (the cost calculated in 2019), or lower.