Arr Planner Co., Ltd. engages in the construction and sale of residential properties. It operates through the following segments: Detached Housing, Other Real Estate, and Others. The Detached Housing segment deals with contracting of custom-built housing and remodeling works; sale and purchase of real estate; sale of condominiums; and brokerage services. The Other Real Estate segment handles the acquisition, regeneration, and sale of used real estate and profitable real estate properties. The Others segment includes housing supervision and fire insurance agency. The company was founded on October 3, 2003 and is headquartered in Nagoya, Japan.