The typical asking rate per listing is in the $90's per square foot per year. The Riverside submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $95 per sqft per year.
In the last 90 days, 4 listings have come on the market, which means spaces are probably going fast. 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.
Even though the median size is 6,000 sqft, there are still 0 office spaces below 2,000 sqft.