Most listings are in the $10's per square foot per year. The Auburn submarket is experiencing a decrease in rates. In the last 3 months, the median rate fell $8 per sqft per year. That's a 33% decline in rent.
Compared to the rest of the Greater Sacramento market, the Auburn region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 11 listings have come on the market, which means leases are probably 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 900 sqft. Most properties in this area are approximately 2 floors. Most buildings in this market were built in 1980 and are Class C.