Gorgeous 5 bed/3 full bath home with den/office off the huge primary suite plus bonus loft, including a full bed and bath downstairs, located on a quiet cul-de-sac in the highly sought after Westerly community of Rancho Tesoro! The largest floor plan in the community, this open and airy home is filled with natural light, soaring ceilings, and highly upgraded finishes throughout, including a QuietCool whole house fan. The expansive primary suite offers an attached bonus room ideal for an office, gym, nursery, or private retreat, along with a large walk-in closet and spa inspired bath with separate vanities. Several rooms enjoy beautiful mountain views. The entertainer's kitchen is the heart of the home, showcasing stainless steel appliances, an oversized center island with quartz counters, two walk in pantries, abundant cabinetry, and seamless flow into the dining and living space with built in theater surround sound. Private backyard surrounded by lush greenery, creating the perfect setting for relaxing or entertaining. Enjoy resort style amenities including scenic hiking trails, pool, parks, lakes, and more, all conveniently located near shopping, dining, and top-rated schools. Rare opportunity to own in one of San Marcos' most desirable newer communities!