Most listings are in the $10's per square foot per year. The Shasta submarket is going through a a boost in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 9% rise in rent.
In the last 90 days, 20 listings have been made available, which means new availabilities might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,200 sqft. Most properties in this market are close to 2 stories. Most buildings in this market were built in 1990 and are Class B.