In the last 90 days, 2 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 50% of the office spaces in the Riverside are subleases, so you might be able to snag a great spot on a short term. 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 sqft. Most properties in this market are around 2 stories. Most buildings in this market were built in 1991 and are Class B.
Information is the dominant industry in this region. Commute by car is the most popular way to get to work amongst Riverside folk. Commuting approximately 15 minutes a day is the norm for those who opt to reside in this part of town.