On average, listings lease in the $10's per square foot per year. The New London region is seeing a decrease in rates. In the last 3 months, the median rate decreased $6 per sqft per year. That's a 23% decline in rent.
In the last 90 days, 17 listings have come on the market, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. 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 530 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1960 and are Class A.