Welcome to this exceptional single-story custom estate, ideally positioned on a private 3-acre hilltop in the highly exclusive and gated community of William Ranch—an enclave of just 10 estate homes, each set on expansive 3–10 acre parcels. Located in the heart of Poway, this home combines high-end design, energy efficiency, and peaceful living in one of Southern California's most serene settings. The main residence includes 4 bedrooms and 4 bathrooms, with a detached casita offering its own full bath—perfect for guests, multigenerational living, or a private home office. The thoughtfully designed layout maximizes privacy and comfort while maintaining an effortless flow for daily living and entertaining. Upon arrival, guests are welcomed through a gated front courtyard that features a cozy fireplace, tranquil fountain, and multiple sitting areas—creating a sense of calm and refinement before you even step inside. Once indoors, you're met with soaring ceilings (10+ feet), elegant archways, and abundant natural light streaming in through oversized sliding doors that frame the home's breathtaking views. The heart of the home is the expansive great room and chef's kitchen, appointed with top-of-the-line Thermador appliances, double ovens, a large island with breakfast bar, and a butler's pantry with wine fridge. Whether you're hosting a formal dinner party or casual gathering, this space is designed to impress while keeping functionality at the forefront. A standout feature of the property is its exceptional energy infrastructure: a high-efficiency SunPower solar system paired with 3 Tesla Powerwall batteries. This setup generates enough energy to power the entire home—including two electric vehicles, an electric water heater, and the Modpool filtration system—while still producing a surplus, resulting in annual rebate check from SDG&E. Enjoy modern, sustainable living without sacrificing performance. In addition to its energy features, the home was built with fire resilience as a top priority. It includes a tile roof, non-combustible eaves, strategically planned defensible space, and fire-resistant landscaping—providing peace of mind during fire season while preserving beauty and function. Outdoor living is at the core of this property's design. The home is oriented so that its outdoor spaces face north and east—reducing intense afternoon heat and welcoming cool ocean breezes. This smart orientation allows you to enjoy the outdoors throughout the year, whether you're relaxing by the pool, entertaining, or simply enjoying your morning coffee with a view. The award-winning Modpool with integrated spa and retractable cover offers a sleek, energy-efficient alternative to traditional pools. It's stylish, low-maintenance, and perfect for both everyday relaxation and entertaining. Just steps away is your own private putting green—surrounded by calleche, a naturally beautiful and fire-resistant material that doubles as a functional fire break while enhancing the landscape's aesthetic. Unlike many properties in Southern California, this home offers a remarkably quiet setting. Free from the hum of highways or major roadways, the property offers true serenity, where the only sounds are rustling breezes, birdsong, and the quiet calm of nature. It's a rare and treasured kind of peace that must be experienced to be believed. Additional highlights include: - Two separate 2-car garages (4-car total) with additional parking for guests - A luxurious primary suite with sitting area, backyard access, dual vanities, and a generous walk-in closet - Detached casita with private entrance and full bath for flexible living - Open, thoughtful layout designed for comfort, privacy, and functionality This extraordinary property represents a rare opportunity to own a one-of-a-kind, energy-independent, fire-conscious, and whisper-quiet luxury estate in one of Poway's most sought-after communities. Welcome home to William Ranch.