The typical asking rate per listing is in the $20's per square foot per year. The River West region is going through a a boost in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 7 listings have been made available, which means office spaces might be going fast. You'll want to be prepared to make an offer immediately. About 29% of the office spaces in the River West 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,380 sqft. Most buildings in this market are close to 2 floors. Most buildings in this market were built in 1989 and are Class A.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Utilities is the dominant industry in this area. Most of the residents of River West work from home. Commuting around 30 minutes a day is the norm for those who opt to reside in this part of town.