On average, listings lease in the $20's per square foot per year. The Northbrook region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $0 per sqft per year. That's a 0% decline in rent.
Compared to the rest of the Chicagoland market, the Northbrook submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 30 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 3,570 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 4 floors. Most buildings in this market were built in 1980 and are Class A.