The typical asking rate per listing is in the $20's per square foot per year. The Grass Valley submarket is going through a a rise in rates. In the last 3 months, the median rate increased $24 per sqft per year.
Compared to the rest of the Greater Sacramento market, the Grass Valley region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 17 listings have been listed, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 53% of the available space in the Grass Valley are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,200 sqft. Most buildings in this market are around 2 floors. Most buildings in this area were built in 1989 and are Class A.