Most listings are in the $30's per square foot per year. The Tiburon submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $40 per sqft per year. That's a Inf% rise in rent.
Compared to the rest of the Bay Area market, the Tiburon submarket has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 7 listings have been listed, which means new listings are probably leasing quickly. 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 1,040 sqft. Most buildings in this market are around 0 floors. Most buildings in this area were built in 1983.