Most listings are in the $10's per square foot per year. The Downtown Riverfront region is going through a a rise in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 17% rise in rent.
In the last 90 days, 13 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 8% of the listings in the Downtown Riverfront are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,450 sqft. Most buildings in this market are around 3 stories. Most buildings in this market were built in 0 and are Class Class B.
This region is fairly equally mixed residential and commercial. Professional services is the dominant industry in this market. Most of the occupants of Downtown Riverfront work from home. Commuting approximately 15 minutes a day is the norm for those who opt to reside in this part of town.