On average, listings lease in the $20's per square foot per year. The Trumbull region is seeing a an increase in rates. In the last 3 months, the median rate went up $25 per sqft per year.
Compared to the rest of the Fairfield market, the Trumbull submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 8 listings have come on the market, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 138% of the available leases in the Trumbull are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,400 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1986 and are Class B.