Most listings are in the $10's per square foot per year. The San Bernardino submarket is seeing a decrease in rates. In the last 3 months, the median rate decreased $7 per sqft per year. That's a 33% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the San Bernardino submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 72 listings have been made available, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 670 sqft. Most properties in this region are approximately 2 stories. Most buildings in this area were built in 1984 and are Class B.