Most listings are in the $20's per square foot per year. The Loma Linda submarket is seeing a a boost in rates. In the last 3 months, the median rate increased $6 per sqft per year. That's a 40% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Loma Linda region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 20 listings have been made available, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,880 sqft. Most buildings in this area are close to 1 stories. Most buildings in this market were built in 2008 and are Class A.