Compared to the rest of the Chicagoland market, the Northwest Side submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 75 listings have been listed, so you'll want to check back regularly for new listings. About 1% of the available space 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1950 and are Class A.