The typical asking rate per listing is in the $120's per square foot per year. The Dubuque submarket is going through a a rise in rates. In the last 3 months, the median rate rose $127 per sqft per year.
In the last 90 days, 28 listings have come on the market, which means listings might be leasing quickly. You'll want to be prepared to make an offer immediately. About 11% of the available space in the Dubuque 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 posted, so finding a space for a small business might be tough.
Even though the median size is 8,840 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are close to 2 stories. Most buildings in this market were built in 1970 and are Class A.