The typical asking rate per listing is in the $20's per square foot per year. The Northwest Side region is seeing a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 11% decline in rent.
Compared to the rest of the Chicagoland market, the Northwest Side region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 52 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the available leases in the Northwest Side are subleases, so you will probably have to focus your search on direct office leases. 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 2,340 sqft. Most properties in this region are close to 2 floors. Most buildings in this region were built in 1950 and are Class A.