The typical asking rate per listing is in the $10's per square foot per year. The Alton region is seeing a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 4% decrease in rent.
In the last 90 days, 56 listings have been listed, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,000 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are approximately 2 floors. Most buildings in this area were built in 1963 and are Class B.