On average, listings lease in the $10's per square foot per year. The New London submarket is going through a decrease in rates. In the last 3 months, the median rate fell $5 per sqft per year. That's a 22% decrease in rent.
In the last 90 days, 10 listings have been listed, which means office spaces are probably 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,000 sqft. Most properties in this market are around 2 stories. Most buildings in this market were built in 1960 and are Class A.