Welcome to 1411 Mountain Grove Ave, a custom-built contemporary masterpiece in Burlington's sought-after Mountainside. Completely rebuilt with full underpinning and all new systems, this home offers over 3,700 sq ft of meticulously finished living space (2,596 sq. ft. above-grade) on a premium 50x150 ft lot.Step inside to soaring 9-ft ceilings, premium wide-plank white oak floors, and a brilliant layout. The main level features a private front office and sitting room, flowing into a breathtaking open-concept entertainment space. The gourmet kitchen is a chef's dream, boasting a massive 10-ft marble waterfall island, servery with a laundry chute, and premium Bespoke appliances. The adjacent living room features a striking Napoleon gas fireplace and custom built-ins, opening to a 12x14 deck and deep backyard.Ascend the custom monorail floating oak staircase with glass railings, illuminated by a massive 5x5 skylight. The 21x12 primary suite is a true retreat, offering a massive 21-ft walk-in closet and a spa-like 5-piece ensuite wrapped in Calacatta marble, featuring a freestanding tub, glass rain shower, and a white onyx double vanity. Two additional oversized bedrooms (17x12) feature custom built-in wardrobes and share a luxurious marble bath. The fully finished lower level extends the living space with a spacious family room, fourth bedroom, full bathroom, gym, laundry room with custom cabinetry, and additional storage, plus a separate side entrance offering flexibility for guests or multi-generational living. No detail is overlooked: 200 AMP electrical, modern HVAC, R24 insulation, and Dashwood windows. A long private driveway fits 4+ cars, leading to a detached garage that is fully insulated and EV-ready with a 60 AMP sub-panel. This turnkey luxury home offers modern luxury living in a fantastic Burlington location.