The typical asking rate per listing is in the $10's per square foot per year. The Elk Grove Village submarket is going through a a rise in rates. In the last 3 months, the median rate increased $16 per sqft per year.
Compared to the rest of the Chicagoland market, the Elk Grove Village submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 24 listings have been posted online, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 50% of the office spaces in the Elk Grove Village are subleases, so you might be able to find a shorter term or below market rent. 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 7,750 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are around 1 stories. Most buildings in this market were built in 1980 and are Class B.