On average, listings lease in the $20's per square foot per year. The Redlands region is experiencing a a boost in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 6% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Redlands submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 12 listings have come on the market, which means new listings most likley are 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,000 sqft. Most buildings in this market are close to 2 floors. Most buildings in this area were built in 2004 and are Class B.