Most listings are in the $20's per square foot per year. The Rolling Meadows submarket is going through a a boost in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 20% increase in rent.
Compared to the rest of the Chicagoland market, the Rolling Meadows region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 43 listings have been posted online, so you'll want to check back regularly for new listings. About 16% of the available leases in the Rolling Meadows are subleases, so you might be able to snag a great spot on a short term. 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 2,480 sqft. Most properties in this area are close to 1 stories. Most buildings in this market were built in 1978 and are Class B.