Compared to the rest of the Bay Area market, the Santa Rosa region has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 36 listings have come on the market, which means office spaces might be going fast. 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 2,260 sqft. Most properties in this region are around 2 stories. Most buildings in this market were built in 1982 and are Class B.