The typical asking rate per listing is in the $30's per square foot per year. The Chino submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $34 per sqft per year.
Compared to the rest of the Metropolitan Los Angeles market, the Chino submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 10 listings have been made available, which means spaces might be going fast. You'll want to be prepared to make an offer immediately. About 50% of the listings in the Chino 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 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 2,270 sqft. Most properties in this area are approximately 1 floors. Most buildings in this region were built in 2003 and are Class A.