On average, listings lease in the $10's per square foot per year. The Auburn region is going through a decline in rates. In the last 3 months, the median rate decreased $8 per sqft per year. That's a 33% decrease in rent.
Compared to the rest of the Greater Sacramento market, the Auburn region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 11 listings have come on the market, which means new availabilities 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 900 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1980 and are Class C.