On average, listings lease in the $10's per square foot per year. The Rock Island submarket is experiencing a a rise in rates. In the last 3 months, the median rate rose $18 per sqft per year. That's a Inf% rise in rent.
In the last 90 days, 44 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the office spaces in the Rock Island are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,180 sqft. Most buildings in this market are close to 2 stories. Most buildings in this region were built in 1966 and are Class B.