On average, listings lease in the $10's per square foot per year. The Darien submarket is experiencing a decline in rates. In the last 3 months, the median rate fell $4 per sqft per year. That's a 20% decline in rent.
Compared to the rest of the Chicagoland market, the Darien region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 5 listings have been posted online, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 11,450 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are close to 1 floors. Most buildings in this area were built in 1990 and are Class B.