Most listings are in the $20's per square foot per year. The Benicia region is experiencing a a boost in rates. In the last 3 months, the median rate rose $28 per sqft per year.
Compared to the rest of the Bay Area market, the Benicia region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 3 listings have been listed, which means spaces might be 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 1,070 sqft. Most properties in this area are close to 1 floors. Most buildings in this market were built in 1990 and are Class B.