Compared to the rest of the Chicagoland market, the Oak Brook region has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 55 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the available space in the Oak Brook 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,070 sqft. Most buildings in this area are approximately 3 floors. Most buildings in this region were built in 1979 and are Class B.