After Tohoku Earthquake and Tsunami 2011, local builders participated in building and supplying temporary houses although JPA (Japan Prefabricated Construction Suppliers and Manufacturers Association) had been responsible for supplying them for several decades. However local builders are considered to have less production capacity than major prefabricated construction suppliers. Based on statistical data and some interviews with the officials and the builders, this article clarifies how local builders constructed temporary houses in Iwate prefecture, and what challenges they faced during the constructions, focusing on (1) construction techniques and materials, (2) production scale and (3) construction period.