The typical asking rate per listing is in the $20's per square foot per year. The Wheaton submarket is going through a an increase in rates. In the last 3 months, the median rate rose $0 per sqft per year. That's a 2% rise in rent.
Compared to the rest of the Chicagoland market, the Wheaton region has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 126 listings have been posted online, so you'll want to check back regularly for new listings. About 44% of the available space in the Wheaton 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 330 sqft. Most buildings in this market are around 2 stories. Most buildings in this market were built in 1984 and are Class B.