J-BASE

J-BASE is a custom home builder serving customers across Miyagi, Iwate, and Aomori, with locations and model homes in areas including Sendai, Morioka, Kitakami, Hachinohe, and Aomori City. The company works with clients to create homes shaped around their lifestyles and the way they want to live, offering free-design construction with fixed pricing. Its homes combine distinctive design with performance, and the advertised basic package starts at 18 million yen before tax.

J-BASE offers a range of styles, including Brooklyn, California, natural, industrial, single-storey, and garage homes. Standard features include ZEH-equivalent energy performance and HEMS, alongside selected finishes and details such as brick tile, solid-wood flooring, iron accents, and energy-efficient air conditioning. The company also provides information on durability, earthquake resistance, and energy efficiency, as well as homebuilding support and warranty programs. Prospective customers can visit regional model homes, attend events and open-house tours, request materials, or book a consultation. J-BASE also provides an aftercare maintenance contact service for homeowners.