300 N San Rafael Ave Perched within Pasadena's most coveted enclave, this architectural triumph by Buff, Smith & Hensman is a breathtaking synthesis of modernist design and natural grandeur. Envisioned as a seamless extension of its pristine 3.4-acre surroundings, 300 N San Rafael Avenue commands sweeping panoramas of the Colorado Street Bridge, the historic cityscape of Pasadena, and the San Gabriel Mountains. Originally built in 1997 and thoughtfully expanded in 2002, the residence spans three levels, with walls of glass and 20-foot ceilings that create a seamless connection. Every major living space is oriented toward breathtaking vistas, while warm wood and stone finishes add a timeless quality to the design. The main level features an expansive great room, formal living and dining areas, an open-concept kitchen, a family room, a library, and two guest suites. The upper level is home to a private primary suite with dual bathrooms, two walk-in closets, and a terrace overlooking the grounds. Four additional bedroom suites, an office, and a study complete this floor. The lower level is designed for entertaining, with a lounge/home theatre and gym. Outdoors, a 60-foot pool is uniquely divided by a limestone bridge, creating separate spaces for swimming and relaxation. A championship north-south tennis court, expansive lawn, and a glass-paneled guest house with retractable walls offer additional space for leisure and gatherings. The estate also includes an eight-car garage and offers two separate entries, both gated, for ultimate privacy. With its thoughtful design, unparalleled setting, and breathtaking views, this estate represents a rare opportunity to own a true architectural masterpiece in one of Pasadena's most sought-after neighborhoods.