The typical asking rate per listing is in the $30's per square foot per year. The San Bernardino submarket is going through a a rise in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the San Bernardino submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 34 listings have been made available, which means office spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 97% of the office spaces in the San Bernardino are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 7,610 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are close to 2 floors. Most buildings in this region were built in 1984 and are Class B.