Welcome to this exceptional residence in the prestigious Avalon Estates hilltop gated community! Offering 6 bedrooms, 5.5 bathrooms, 5,283 +/- square feet of living space on an expansive 22,220 sq. ft. lot! Part of the total living area is an attached 478 sq ft In-Law Unit/ADU with a separate entrance, full bathroom, large walk-in closet and kitchenette. A grand entrance welcomes you into light-filled interiors featuring formal living and dining rooms, a spacious family room, and a well-appointed kitchen with casual dining. The versatile floor plan includes the In-Law suite, an additional main-level bedroom suite, and an upstairs primary retreat with fireplace, sitting room, luxurious bath, and dual walk-in closets. Upstairs, a second family room, dedicated office, and study area provide added flexibility. Additional amenities include central A/C, 4 fireplaces, and soaring high ceilings. Outdoors, beautifully landscaped grounds feature mature trees and lawn, multiple entertaining areas, and an expansive covered patio overlooking picturesque hillside scenery. Complete with a three-car garage, this remarkable home offers space, privacy, and elegance in Fremont's scenic foothills. Conveniently located near I-680 and I-880, dining and shops, and Mission Peak trails.