Welcome to 3517 Lone Pine Lane, a beautifully maintained home tucked away on a quiet cul-de-sac in the desirable Arbor Ranch community of San Marcos. Offering approximately 2,249 square feet of thoughtfully designed living space, this home blends comfort, functionality, and indoor-outdoor living, with plenty of room to grow. Step inside to soaring ceilings, abundant natural light, and a spacious floor plan designed for everyday living and entertaining. Recently refreshed with fresh interior paint throughout, brand-new carpeting installed in November 2026, and a new refrigerator, range, and microwave, the home offers a welcoming, move-in-ready feel. Upstairs, a versatile loft provides additional space for a home office, playroom, or secondary living area. The true highlight is the beautifully designed backyard, featuring a sparkling pool, relaxing spa, and waterslide. Whether hosting gatherings, enjoying sunny afternoons by the pool, or unwinding after a long day, this outdoor retreat provides the perfect setting for making lasting memories. Additional highlights include owned solar and a generously sized lot with only one immediate neighboring residence, offering a wonderful sense of privacy. Ideally situated near the Carlsbad area and just moments from Sunset Park, residents can enjoy walking trails, playgrounds, a splash pad, and recreational spaces, along with convenient access to shopping, dining, and everything North County San Diego has to offer. A wonderful place to settle in, grow, and call home for years to come.