On average, listings lease in the $10's per square foot per year. The Iowa region is going through a a boost in rates. In the last 3 months, the median rate increased $19 per sqft per year.
In the last 90 days, 1192 listings have come on the market, so you'll want to check back regularly for new listings. About 41% of the listings in the Iowa 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 2,210 sqft. Most buildings in this region are close to 1 floors. Most buildings in this region were built in 1984 and are Class A.