On average, listings lease in the $40's per square foot per year. The San Anselmo region is seeing a a boost in rates. In the last 3 months, the median rate went up $13 per sqft per year. That's a 34% rise in rent.
Compared to the rest of the Bay Area market, the San Anselmo submarket has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 2 listings have been posted online, which means office spaces might be going fast. You'll want to be prepared to make an offer immediately. About 50% of the available space in the San Anselmo are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 3,300 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this market were built in 2004 and are Class B.