Most listings are in the $0's per square foot per year. The North Haven submarket is going through a decrease in rates. In the last 3 months, the median rate fell $22 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 4 listings have been made available, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,500 sqft. Most properties in this region are close to 2 stories. Most buildings in this market were built in 1986 and are Class B.