In the last 90 days, 2 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 50% of the listings in the Riverside 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 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this area were built in 1991 and are Class B.
Information is the dominant industry in this area. Commute by car is the most popular way to get to work amongst Riverside residents. Commuting close to 15 minutes a day is the norm for those who opt to reside in this part of town.