On average, listings lease in the $30's per square foot per year. The San Anselmo submarket is seeing a decline in rates. In the last 3 months, the median rate fell $19 per sqft per year. That's a 39% decrease in rent.
Compared to the rest of the Bay Area market, the San Anselmo region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 3 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,400 sqft. Most buildings in this market were built in 1965 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Professional services is the dominant industry in this area. Commute by public transit is the most popular way to get to work amongst San Anselmo folk. Commuting around an hour and a half a day is the norm for those who opt to reside in this part of town.