A Rare Lifestyle Estate on 3.57 All Usable Acres in Artesian Privately gated at the end of a long, tree lined drive, 16733 Calle Hermosa presents a remarkable opportunity to own a fully usable estate compound designed for refined living and long term flexibility. Set amid mature citrus groves and expansive, level grounds, this turnkey property blends timeless architecture with resort inspired amenities and future expansion potential all within the prestigious Artesian enclave of North County San Diego. Built in 2008 and impeccably maintained, the 5,545 square foot main residence showcases warmth and craftsmanship through soaring ceilings, oak wood floors, and abundant natural light. A dramatic great room with two story windows, exposed beams, and multiple French doors creates a seamless indoor outdoor connection to the covered loggia and sparkling pool beyond an ideal setting for both intimate gatherings and grand entertaining. The chefs kitchen is thoughtfully appointed with a 70" Frigidaire Professional refrigerator, Dacor six burner range, double ovens, dual Fisher & Paykel dishwasher drawers, walk in pantry, and inviting breakfast nook, while the main level primary suite offers a serene retreat with spa like bath and garden views. Complementing the main residence is a 918 square foot detached guest house featuring a full kitchen, living room, bedroom, and bath ideal for multigenerational living, visiting guests, or income potential. A separate 529 square foot pool house with bonus garage space below provides additional flexibility for a wellness studio, creative workspace, gym, or collectors storage, transforming the property into a true private lifestyle compound. Outdoor living unfolds across Cantera stone patios, lush lawns, and resort style amenities including a pool, spa, covered dining areas, and mature landscaping that enhances both privacy and beauty. The 3.57 all usable acres offer rare versatility, with ample space to envision a pickleball court, vineyard, equestrian facilities, or additional garages inviting future customization while remaining completely turnkey today. Zoned for the San Dieguito School District and ideally positioned near coastal destinations, top schools, and major conveniences, this extraordinary offering represents a compelling blend of privacy, flexibility, and enduring value within Artesian Estates a setting where timeless design meets limitless possibility.