Opened in 1913 as the Keystone Hotel, this historic property has offered a delightful experience for Bay Area visitors for almost 100 years!

In 1981, Charles W. Mosser purchased the hotel and after a multi-million dollar renovation in 2003, he renamed it The Mosser.

Like San Francisco, The Mosser offers a unique, care free culture mixed with the splendor of yester-year. This is apparent in the fusion of Victorian architecture mixed with modern interior design.

The Mosser family is a strong supporter of the reforestation of the rain forests, literacy, and various educational projects. The Mosser family donates a portion of hotel proceeds to these charitable efforts. To learn more, please visit: Mosser Environment Corporation