On average, listings lease in the $50's per square foot per year. The Greenwich submarket is experiencing a a rise in rates. In the last 3 months, the median rate went up $7 per sqft per year. That's a 13% rise in rent.
Compared to the rest of the Fairfield market, the Greenwich submarket has more expensive rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 20 listings have been listed, which means new availabilities might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 10% of the available space in the Greenwich are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,000 sqft. Most buildings in this market are close to 3 floors. Most buildings in this area were built in 1973 and are Class A.