Dream shop/ home gym-heated space perfect for any hobby or studio. Primary suite on the main floor.Custom built home with Insulated Concrete Form construction; this residence situated between Issaquah, Newcastle, and Renton was designed for high energy efficiency, low maintenance and exceptional comfort. The ICF walls deliver superior insulation, structural resilience, and a remarkably quiet interior while placing this home among the top five most energy-efficient in a neighborhood of 100+ homes. Hydronic radiant heat warms every finished level, including the large attached shop. ICF construction eliminates the need for supplemental cooling in a Pacific Northwest summer. Vaulted ceilings and generous windows fill the great room with natural light. Custom handcrafted millwork reflects the care behind the original build. Recent updates include: new driveway; quartz countertops; great room flooring; and carpeting. The nearly half-acre lot provides space and privacy increasingly rare this close to Eastside conveniences. Dedicated RV parking, two well-maintained sheds, and separate outdoor locker offer functional outdoor space most properties cannot match. A standing seam metal roof and full ICF construction reinforce the long-term, low-maintenance character of the build. No HOA, within the highly regarded Issaquah School District. A rare opportunity to own a custom residence where this level of construction quality and energy efficiency is built into every wall.