Most listings are in the $70's per square foot per year. The Tiburon region is seeing a an increase in rates. In the last 3 months, the median rate went up $71 per sqft per year.
Compared to the rest of the Bay Area market, the Tiburon region has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 3 listings have come on the market, which means listings might be leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,120 sqft. Most buildings in this area are approximately 0 stories. Most buildings in this market were built in 1980.