The typical asking rate per listing is in the $20's per square foot per year. The Wheaton submarket is seeing a an increase in rates. In the last 3 months, the median rate rose $28 per sqft per year.
Compared to the rest of the Chicagoland market, the Wheaton submarket has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 126 listings have been listed, so you'll want to check back regularly for new listings. About 6% of the available space in the Wheaton are subleases, so you will probably have to consider a longer term lease. 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 950 sqft. Most buildings in this region are close to 2 stories. Most buildings in this area were built in 1988 and are Class B.