On average, listings lease in the $10's per square foot per year. The Hesperia submarket is seeing a decline in rates. In the last 3 months, the median rate fell $16 per sqft per year. That's a 44% decrease in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Hesperia submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 7 listings have been posted online, which means leases are probably 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 1,000 sqft. Most properties in this area are close to 1 floors. Most buildings in this market were built in 1981 and are Class B.