Tucked behind a gated circular driveway, 3890 Happy Valley Road blends timeless architecture with modern ease. Renovated in 2025 by Martin Homes Team with quality and attention to detail throughout. Set on a flat .66-acre lot with 6BD, 5.5BA, detached guest house, 3-car garage, and pool. Ideal single-level layout with vaulted ceilings, custom woodwork, and both formal and casual living areas—perfect for indoor/outdoor California living. The kitchen stuns with an 18-ft Fleetwood door, oversized Cristallo island, custom Blueline cabinetry with Walnut Island, Subzero wine/refrigeration wall, 48” Wolf range, built-in espresso bar, and walk-in pantry. Family room, formal dining, and living room flow seamlessly together. Magical yard with lush, mature landscaping, fully remodeled black-bottom Pebble Tec pool, paver deck, built-in BBQ, Montana steel firepit, new steel gate &#38' fencing. The 1,170 SF ADU (2020) offers an en-suite bedroom, full kitchen, laundry &#38' open-concept living—ideal for guests or WFH. Upgrades include 10” Italian white oak floors, Kolby windows, custom ceilings, steel pivot door, Trustile doors, Rejuvenation lighting, and two Mendota fireplaces. All just minutes to top-rated schools, Lafayette trails, charming downtown &#38' commute access.