Most listings are in the $20's per square foot per year. The Greater Sacramento region is going through a decline in rates. In the last 3 months, the median rate fell $2 per sqft per year. That's a 6% decrease in rent.
In the last 90 days, 766 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the available space 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,490 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 1989 and are Class B.