Most listings are in the $20's per square foot per year. The Newtown region is experiencing a a boost in rates. In the last 3 months, the median rate rose $13 per sqft per year. That's a 79% rise in rent.
Compared to the rest of the Fairfield market, the Newtown submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. About 50% of the office spaces in the Newtown are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 3,240 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 1968 and are Class A.