Most listings are in the $0's per square foot per year. The Armonk submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $29 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 5 listings have been posted online, which means listings might be leasing quickly. You'll want to be prepared to make an offer immediately. About 20% of the available leases in the Armonk are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 buildings in this area are approximately 25 floors. Most buildings in this market were built in 1974 and are Class A.