The typical asking rate per listing is in the $30's per square foot per year. The New London submarket is experiencing a a rise in rates. In the last 3 months, the median rate went up $9 per sqft per year. That's a 34% rise in rent.
In the last 90 days, 9 listings have been made available, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 44% of the office spaces in the New London 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 200 sqft. Most buildings in this market are close to 2 stories. Most buildings in this region were built in 1965 and are Class A.