Stunning Mt. Diablo views on this GATED 1.5 ACRE FLAT MONTAIR ESTATE. This EXQUISITELY REMODELED home with SOLAR includes 5 beds, 4.5 baths, and almost 5,400 SF of living space. Highlights include: white oak hardwood flooring, designer lighting, and custom cabinets. Functional floorplan presents formal living and dining rooms, office, sunroom, detached exercise studio, and expansive storage/workshop space. Chef's kitchen includes oversized island, two-tone cabinetry, custom range hood, farm sinks, wine fridge, walk-in pantry, eat-in kitchen, and new Viking stainless steel appliances. Master retreat includes lounge area and outdoor balcony to take in the views. Indulge in the spa-like ensuite bathroom with custom vanity, soaking tub, double-headed shower, and custom walk-in closet. Separate wing of home provides in-law living space with walk-in closet, spacious bathroom, and more. Backyard is an entertainer's dream with lush green landscaping, large patio, and raised beds for gardening.