Most listings are in the $30's per square foot per year. The Wilton Center region is seeing a an increase in rates. In the last 3 months, the median rate rose $8 per sqft per year. That's a 35% increase in rent.
Compared to the rest of the Fairfield market, the Wilton Center submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have been made available, which means new availabilities 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.
The standard measurement for office space in this area is around 300 sqft. Most buildings in this market are close to 3 stories. Most buildings in this region were built in 1979 and are Class A.