A stunning single-story Mid-Century Modern masterpiece (c.1951) set on a coveted corner lot in sensational San Marino, meticulously reimagined with exceptional craftsmanship, premium materials, and sophisticated design. Thoughtfully renovated while honoring its original architectural integrity, this extraordinary residence effortlessly blurs the boundaries between indoor and outdoor living. The generous corner parcel affords exceptional privacy and light from multiple exposures, showcasing sweeping, parklike grounds that feel more like a private estate than a typical residential lot. At the heart of the home, a newly redesigned pool and spa serve as a dramatic focal point, framed by lush landscaping and expansive Ipe wood decking. Walls of oversized sliding glass doors open directly to the resort-inspired grounds, flooding the interiors with natural light and capturing the essence of California living. Dramatic architectural details abound, including soaring vaulted and beamed ceilings, a spectacular living room anchored by a dramatic 15-foot floor-to-ceiling stone fireplace wall, and carefully curated finishes throughout. The luxurious primary suite is a true retreat, featuring a spa-inspired bath with a soaking tub overlooking the tranquil rear gardens, an oversized custom walk-in closet with center island, and a glass-enclosed steam shower with built-in bench seating. Designed for both everyday living and effortless entertaining, the gourmet kitchen is appointed with a professional-grade Wolf range and expansive center island, flowing naturally into a stylish den featuring a custom wood accent wall, floating shelves, and bespoke built-in cabinetry. Privately enveloped by a striking architectural fence and mature double hedges, the expansive corner-lot grounds unfold like a private park offering complete seclusion, exceptional square footage, and year-round enjoyment. An exceptional outdoor environment includes a covered outdoor kitchen, outdoor fireplace, generous front and rear lawns, and multiple spaces for gathering, relaxing, and entertaining. A rare offering that masterfully combines architectural significance, rare lot scale, and modern luxury, this sophisticated estate represents one of the finest Mid-Century residences available in the San Gabriel Valley.