Where Luxury Meets Legacy. Introducing an extraordinary generational home on a rare estate-sized lot at 1590 Sumac Ave in North Boulder. Four years in the making, this masterpiece is now offered at $8,950,000, priced at just $1284 per square foot, all above ground. Showcasing the finest finishes, exceptional craftsmanship, and an array of lavish amenities, including a saltwater pool, spa and pool house. This residence is a truly unique opportunity-priced below today's build cost and providing unmatched value for the discerning buyer.This home is a testament to visionary design and superior workmanship. Set on an expansive estate-sized acre, the entryway greets you with a custom solid walnut pivot door opening into a grand 26-foot foyer. Inside a stunning mono-stair floating staircase sets the tone for the exquisite design throughout. Wide plank white oak flooring, Italian tile, and Jerusalem cut limestone accents exude elegance, while custom trowel finishes and walnut accent walls elevate the space to a level of artistry rarely seen. Spanning 7,170 square feet above ground, this residence offers versatile living areas tailored to accommodate every facet of modern life. The kitchen is a chef's dream, featuring Pental-quartz slab counters, Shiloh Cabinetry, and Miele appliances, perfectly blending style and functionality. Solid panel doors with walnut casings, Emtek hardware, and SOSS door hinges add refinement, while Lutron lighting and motorized window coverings provide convenience and privacy. Experience ultimate luxury with curated amenities such as a glass-faced 368-bottle wine rack, an elevator, three contemporary EcoSmart fireplaces, and a pool house equipped with a sauna and steam shower. This HERS Net Zero rated home includes a 24.5-kilowatt solar array and a comprehensive technology package, making it not just a home, but a statement of luxury and sustainability. Brown Development is renowned for excellence in luxury custom homes.