The typical asking rate per listing is in the $10's per square foot per year. The Iowa region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 4% decrease in rent.
In the last 90 days, 1192 listings have come on the market, so you'll want to check back regularly for new listings. About 36% of the available leases in the Iowa 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 2,200 sqft. Most buildings in this region are close to 1 stories. Most buildings in this market were built in 1983 and are Class A.