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In the heart of London on the New Bond Street in 1744, an exceptional auction house was born with a revered tradition of marketing the world’s most cherished possessions. A tradition, more than two centuries old, that provides authentic knowledge comparable to none. As the oldest company listed on the New York Stock Exchange (BID), Sotheby’s has a global network of 90 offices in 40 countries. Today, Sotheby’s presents auctions in eight different salesrooms including New York, London, Hong Kong […]

Property Details

5 BEDS 6 FULL BATHS 1 PARTIAL BATHS $9,500,000 PRICE 432 Lovell Avenue Mill Valley CA 94941 Awe-inspiring, custom architectural Mill Valley home by Quezada Architecture in an ideal, close-to-town location. The property consists of a main house and an ADU or guest house. The main house boasts 5 bedrooms, 5.5 baths, and multiple outdoor living spaces including a lap pool and integrated spa and a lovely, covered deck off the master bedroom. Finely appointed and executed finishes in both […]


Golden Gate Sotheby’s International Realty is one of the largest brokerages in Northern California, consistently representing the highest priced homes and most affluent buyers in the San Francisco Bay Area. The company is renowned for attracting the most successful and experienced agents who provide their clients with market knowledge, negotiation skills, local expertise and superior property marketing. Top agents affiliate with Golden Gate Sotheby’s International Realty because it provides their clients with the best of local independent ownership coupled with […]


Sotheby’s International Realty brand artfully unites exceptional homes with extraordinary lives throughout the world. Founded on the same commitment to exceptional service that characterized the Sotheby’s Auction House for more than two centuries, the Sotheby’s International Realty® brand was created in 1976 to connect the finest independent real estate companies with the most prestigious clientele in the world. The network includes over 20,000 independent sales associates in over 880 offices in 69 countries and territories offering the best in local […]

About Us

Dubie Breend.breen@ggsir.comPhone: 415.640.4927 Dubie Breen I am a real estate specialist offering comprehensive services for the purchase and sale of land, residential, and residential income properties. I provide a breadth of knowledge based on working in real estate sales since 1990. I have received awards for more than 28 years including the International President’s Circle at Coldwell Banker, President’s Gold Award of Distinction at Frank Howard Allen, ‘Top Agent’ status since joining Golden Gate Sotheby’s International Real Estate. Last year […]


Contact Agent

Dubie Breend.breen@ggsir.comPhone: 415.640.4927Lic.# 01079071View My Listings

Market Report

View Market Report The Annual Market report is Golden Gate Sotheby’s International Realty’s thorough yearly analysis of market trends broken down by community within San Francisco, Marin, Napa and Sonoma Counties.


Nestled in the foothills of towering Mount Tamalpais, Mill Valley is an intimate community whose beauty is only matched by its rich Marin County history. Mill Valley is home to municipally maintained open-space reserves, parks, and coastal habitats. These areas, along with the Mediterranean climate, allow the residents to enjoy outdoor recreation year round. Wrapping around Lytton Square, the business district offers art galleries, trendy fashion boutiques, open-air coffee shops, and more. Located on 4.8 square miles, Mill Valley lies […]