Arr Planner Co., Ltd. engages in the custom-built homes, detached homes, and land businesses in Japan. It operates through Single-Family Home Business, Used Real Estate Renovation and Income-Generating Real Estate Business, and Other segments. The company engages in the contracting of custom-built homes; sale of detached homes; purchase and sale of real estate; real estate brokerage; construction work; contracting for renovations and exteriors; and acquisition, renovation, and sale of used real estate and income-generating real estate. It is also involved in condominium sales; remodeling; and customer introduction and fire insurance agency activities. Arr Planner Co., Ltd. was incorporated in 2003 and is headquartered in Nagoya, Japan.