The typical asking rate per listing is in the $0's per square foot per year. The Riverfront region is going through a decrease in rates. In the last 3 months, the median rate fell $23 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 4 listings have been made available, which means new availabilities are probably leasing quickly. 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 sqft. Most buildings in this region were built in 1900 and are Class A.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Waste services is the dominant industry in this area. Most of the occupants of Riverfront work from home. Commuting between 20 and 25 minutes a day is the norm for those who opt to reside in this part of town.