Compared to the rest of the Metropolitan Los Angeles market, the Downtown Rialto submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 1 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. 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 2,250 sqft.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Construction is the dominant industry in this market. Most of the residents of Downtown Rialto work from home. Commuting more than an hour and a half a day is the norm for those who opt to reside in this part of town.