First time on the market, 4955 Rancho Viejo Drive is a rare single-level estate in the highly coveted enclave of Rancho Del Mar. Resting on a private one-acre parcel at the end of a quiet cul-de-sac, this custom home offers over 3,000 square feet of refined living space and sweeping, panoramic views across the San Dieguito River Valley. Showcasing a striking post-and-beam architectural design, the home is defined by dramatic vaulted ceilings with exposed wood beams, clerestory windows, and an abundance of natural light where a modern lodge feel blends seamlessly with the surrounding landscape. The spacious, light-filled layout offers five bedrooms (or four plus an executive office with private entry) and four well-appointed baths. Thoughtfully designed, the indoor-outdoor flow invites everyday comfort and extensive entertaining options. A versatile room with its own private entrance sits below the main residence, ideal for a craft studio, gym, office, ample storage or even expansion. Beautifully maintained and enhanced (with only one owner), recent updates include upgraded skylights, luxury lighting, newer living room shades, Pella doors with SlimShade inserts, sunscreens on southwest-facing windows, and new ensuite bathroom flooring. Additional improvements include a 50-year roof with warranty, newer garage doors and water heater, upgraded HVAC, whole-house filtration and a recently replaced septic tank - offering lasting quality and peace of mind. Outside enjoy multiple view decks, garden ready planters, meandering walkways, fruit trees and endless options. Perfectly positioned between Rancho Santa Fe and Solana Beach, Del Mar's coveted Rancho Del Mar enclave offers an exceptional blend of natural beauty and relaxed elegance. Known for its custom estates, tree-lined streets, and peaceful semi-rural character, this hidden gem is just minutes from Del Mar's pristine beaches, the Flower Hill Promenade, world-class dining, and top-rated schools. With effortless access to I-5, nearby equestrian and recreational trails, and the luxury amenities of both Del Mar and Rancho Santa Fe, the area delivers a rare lifestyle where seaside tranquility meets refined sophistication. Here you will find a haven defined by coastal beauty, privacy, and unmatched convenience.