One-of-a-kind modern retreat in the heart of Old La Costa with a detached ADU and resort-style grounds on an expansive .26 acre lot. Set within one of North County’s most sought-after neighborhoods known for its custom and eclectic homes, this architecturally distinct residence offers a rare blend of design, functionality, and flexibility. Inside, curated upgrades create a sleek, contemporary feel, including a striking concrete surround fireplace, bamboo cabinetry, frosted glass accents, and granite flooring throughout. The home’s design is centered around seamless indoor-outdoor living, highlighted by a dramatic architectural archway that opens to a private backyard retreat. The outdoor space is built for entertaining, featuring resort-style grounds and an expansive raised platform patio-perfect for hosting or enjoying quiet evenings at home. This thoughtfully designed home features four bedrooms upstairs, including a spacious primary retreat with westerly-facing peek-a-boo ocean views. Tastefully updated throughout, it offers a clean, modern aesthetic that feels both fresh and inviting. Downstairs, enjoy a dedicated office space and two separate living areas, providing flexibility for work and everyday living. A true standout feature is the approximately 500 sq ft detached ADU, complete with a kitchenette, full bathroom, living area, and private bedroom, offering ideal space for guests, multigenerational living, or potential rental income. Ideally located just minutes from shopping, dining, and North County’s renowned beaches, this property presents a rare opportunity to own a truly distinctive home in Old La Costa.