The typical asking rate per listing is in the $20's per square foot per year. The Danbury region is going through a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 22% increase in rent.
Compared to the rest of the Fairfield market, the Danbury submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 40 listings have been made available, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 88% of the available leases in the Danbury are subleases, so you might be able to find a shorter term or below market rent. 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 3,530 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are close to 2 floors. Most buildings in this area were built in 1980 and are Class A.