The typical asking rate per listing is in the $20's per square foot per year. The Greater Sacramento submarket is going through a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 6% decline in rent.
In the last 90 days, 563 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the listings in the Greater Sacramento are subleases, so you will probably have to consider a longer term lease. 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 2,000 sqft. Most buildings in this market are around 2 floors. Most buildings in this area were built in 1989 and are Class B.