Most listings are in the $40's per square foot per year. The Roseville submarket is going through a a rise in rates. In the last 3 months, the median rate went up $26 per sqft per year. That's a 167% rise in rent.
In the last 90 days, 20 listings have been posted online, which means new listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 25% of the available space in the Roseville are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,710 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this area were built in 1980 and are Class B.