Compared to the rest of the Bay Area market, the Santa Rosa region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 44 listings have been listed, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,610 sqft. Most buildings in this market are around 2 stories. Most buildings in this region were built in 1982 and are Class B.