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About Us

Sieba Peterson
s.peterson@ggsir.com
Phone: 707.932.1276

Jeffrey Earl Warren
j.warren@ggsir.com
Phone: 707.486.1025

Sieba Peterson

Sieba Peterson’s interest in real estate began after the purchase and remodel of her first home in Humboldt County at age 23. Inspired, Sieba went on to buy and sell several more properties as well as obtaining her real estate license. Sieba specialized in rural properties, ranches and residential homes. After a few years she relocated to Lake Tahoe where she worked with Century 21 selling luxury lakefront and vacation homes. In 2009 she moved to San Francisco to pursue a dream to become a pastry chef and earned her Professional Pastry Certificate at Tante Maries Cooking School. After graduation, she worked at Quince, a high-end gourmet restaurant in San Francisco. While this opportunity provided a wonderfully creative outlet for her, she decided her passion is interacting directly with people and helping them realize their dream of homeownership.

Sieba has an unparalleled dedication to clients and believes hard work and integrity are the keys to success. Her goal is to showcase the beautiful Napa Valley to potential homebuyers and provide excellent personal service that exceeds the expectations of her clients.

Sieba lives in Napa with her family and 2 dogs and enjoys staying active with tennis, skiing, and cross-fit.


Jeffrey Earl Warren

Jeffrey Earl Warren’s professional career has had two parts. After graduating from University of California, Berkeley, he spent the following 15 years in the advertising business as a copywriter and Vice president/Creative Director of J. Walter Thompson in New York (and later Senior Vice President of Foote, Cone & Belding in San Francisco). While in New York, Jeff co-authored the fitness book, Mike Spino’s Mind/Body Running Program (published by Bantam). He also wrote op-eds, magazine pieces, comedy, and was a speechwriter.

In 1986 his father enticed him to take over the family real estate business back home in St. Helena. Specializing in vineyards and winery properties, Jeff was President of James Warren & Son before joining Golden Gate Sotheby’s International Realty. As a minority owner in Freemark Abbey Winery, his expertise in “dirt” and knowledge of the wine industry, has resulted in his being sought out by locals and newcomers alike who are interested following the example of his father and himself–and bringing their families to the Valley. He has experienced, first hand, what you are about to go through.

He’s kept up his love of writing by doing a weekly column in the local St. Helena Star newspaper and had a local radio show on KVON, Napa.

He now lives in St. Helena with his wife, Cynthia. They have three children, Casey, JJ, and Cody.

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