The typical asking rate per listing is in the $0's per square foot per year. The Greenwich submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $86 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 36 listings have been posted online, which means listings 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 sqft. Most properties in this market are close to 3 floors. Most buildings in this market were built in 1974 and are Class A.