The typical asking rate per listing is in the $20's per square foot per year. The Danbury submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $5 per sqft per year. That's a 17% decrease in rent.
Compared to the rest of the Fairfield market, the Danbury region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 33 listings have been made available, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 2,200 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1980 and are Class A.