Tsuchiya Holdings Co., Ltd. engages in the management of its group companies in construction business. It also handles management and consultancy business. It operates through the following segments: Housing Business, Reform Business, Real Estate Business, and Rental Business. The Housing Business segment develops residential lands and designs, manages, constructs, and sells condominiums. The Reform Business segment constructs extension and structural alteration of buildings and houses. The Real Estate Business segment sells condominiums and used houses and offers agency services for real estate properties. The Rental Business segment leases and manages real estate properties. The company was founded by Kozo Tsuchiya on June 12, 1969 and is headquartered in Sapporo, Japan.