In a complex and continually evolving art market, a well-supported fine art appraisal requires specialized knowledge, professional judgment, and thorough market research. Newton Fine Art Appraisal provides independent, unbiased opinions of value for insurance, estate planning, estate settlement, and charitable contribution. Each appraisal is carefully researched and prepared using recognized appraisal methodology, relevant market data, and professional expertise. Our work is grounded in a detailed understanding of the art market and the factors that influence the value of individual works, including artist, provenance, condition, medium, rarity, exhibition history, comparable sales, and current market conditions.

We provide appraisal services for:

  • Paintings

  • Limited-edition prints

  • Works on paper

  • Fine art photography

  • Sculpture

  • Digital art

We work with private collectors, insurance professionals, attorneys, estate and trust professionals, galleries, museums, and other institutions requiring credible and well-documented valuations of fine art. Based in Marin County, Newton Fine Art Appraisal serves clients throughout Marin County, San Francisco, Sonoma County, Napa Valley, and the greater San Francisco Bay Area. Our appraisals are prepared in accordance with the Uniform Standards of Professional Appraisal Practice (USPAP). We are committed to providing objective, thoroughly researched, and professionally supported opinions of value that meet the needs of collectors, fiduciaries, insurers, attorneys, and other professional advisors.

Sally Newton American Society of Appraiser By Appointment (415) 361-1890 Tiburon, California

Client Reviews

We had an oil painting that was thought to be a work by Peter Paul Rubens. We contacted Sally to appraise our collection and research the painting. She contacted a specialist in Old Masters at Sotheby’s to start the authentication process. Although it took some time, it was determined that the painting was executed by a follower of Rubens. We highly recommend her. She is professional and knowledgable. Her love of art is infectious. Nancy T, Atherton, CA

Sally was highly professional and knowledgable in valuing California 19th century art for my family. We had some water damage as a result of the fire in Sonoma County. She recommended a conservator and delivered the paintings for us to the conservator’'s studio. She went above and beyond. what we expected. At every point in the process, we were more than satisfied and grateful for her help. Kate and John, Tiburon, CA

We inherited a very large collection of prints. Some exceptional and others we had no idea what to do with them. Sally brought order to chaos. She prepared an estate appraisal for equitable distribution, providing us with a comprehensive appraisal report. Her knowledge and love of art made the process enjoyable . We would highly recommend her services. Julie and Matt, Tiburon, CA