Compared to the rest of the Metropolitan Los Angeles market, the Rancho Cucamonga submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 36 listings have been listed, which means office spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 97% of the office spaces in the Rancho Cucamonga 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,040 sqft. Most properties in this area are approximately 2 stories. Most buildings in this area were built in 1991 and are Class B.