AVANTIA Co., Ltd. engages in real estate business. It operates through the following segments: Detached Housing, Condominium, General Contract Work, and Others. The Detached Housing segment handles construction and sale of custom-made houses and detached houses. The Condominium segment deals with planning and sale of condominiums. The General Contract Work segment manages contracts for building, civil engineering, and plumbing works. The Others segment includes remodeling, real estate brokerage, and surveying services. The company was founded on November 16, 1989 and is headquartered in Nagoya, Japan.