The typical asking rate per listing is in the $20's per square foot per year. The Petaluma submarket is seeing a decline in rates. In the last 3 months, the median rate fell $6 per sqft per year. That's a 17% decrease in rent.
Compared to the rest of the Bay Area market, the Petaluma submarket has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 31 listings have come on the market, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 65% of the office spaces in the Petaluma are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,530 sqft, there are still 0 leases below 2,000 sqft. Most properties in this market are approximately 2 stories. Most buildings in this market were built in 1990 and are Class A.