The typical asking rate per listing is in the $40's per square foot per year. The Tamalpais-Homestead Valley submarket is seeing a a boost in rates. In the last 3 months, the median rate went up $5 per sqft per year. That's a 11% rise in rent.
Compared to the rest of the Bay Area market, the Tamalpais-Homestead Valley region has greater rates, and you'll need to pay a premium to be in this hot region.
In the last 90 days, 1 listings have been posted online, 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 670 sqft. Most buildings in this region were built in 1957.