Ramon Zambrano, an influential architect renowned for his community-oriented designs, passed away on September 17, 2025, at the age of 90. A long-time resident of Mill Valley, California, he made significant contributions to architectural projects across the United States, leaving behind a legacy of creativity and dedication.
Born on March 11, 1935, in New York City, Zambrano spent his childhood in Mt. Vernon. After completing high school, where he excelled as a varsity athlete and served as senior class president, he was awarded an ROTC Naval scholarship to attend Tulane University. He graduated in 1957 with a degree in Architecture, a time he fondly recalled for its vibrant culture and connection to his parents’ early relationship.
Zambrano’s professional journey began after his Naval commission led him to Kyoto, Japan. His experiences there had a profound impact on his design philosophy, which often incorporated elements of serenity and harmony. Following his service, he relocated to San Francisco, where he established his career.
In the early stages of his profession, he worked at Hugh Stubbins and Associates, contributing to significant projects, including the Master Plan for Boston Medical Center. This complex project aimed to merge two major hospitals into a single comprehensive medical facility. Later, he ventured into independent practice, taking on major redesign projects in San Francisco.
One of Zambrano’s standout works is the chapel at Dominican Hospital in Santa Cruz, which showcases a blend of Brutalist architecture with the elegance of medieval European churches. His ability to create sacred spaces that evoke both striking beauty and tranquility became a hallmark of his career.
In 1981, Zambrano met Patience Moore at a political fundraiser. Their shared vision for thoughtful design led to a successful collaboration, during which they developed notable projects such as the Mill Valley Inn, the Acqua Hotel, and the Water’s Edge in Tiburon. Each project reflects Zambrano’s architectural signature, emphasizing the importance of integrating structures into their natural surroundings.
Zambrano’s family home, situated on a ridge of Mount Tamalpais in Mill Valley, is considered his purest expression of architectural excellence. Described by his architect stepson as a perfect example of design, the residence embodies Japanese-inspired minimalism and a seamless connection with the landscape. Zambrano married Moore in this cherished home in 1985.
Beyond architecture, Zambrano was an adventurous spirit. He enjoyed sailing across San Francisco Bay, scuba diving, and exploring the great outdoors through activities like fly fishing and backpacking in the Sierras. His travels across Africa and experiences in the Caribbean further enriched his life, emphasizing a passion for exploration and culture.
Zambrano is survived by his wife, Patience; daughter, Mia Zambrano; granddaughter, Emelia; stepsons, Nick and Andrew Pribuss; and their four children. In lieu of flowers, his family has requested donations in his memory to the Nature Conservancy at Silver Creek Preserve in Idaho, honoring his love for nature and commitment to environmental conservation.
Ramon Zambrano’s impact on architecture and his community will be remembered for years to come, as he inspired others with his dedication to thoughtful design and his love for family and nature.
