Most listings are in the $10's per square foot per year. The Madison Avenue submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 1 listings have been listed, which means new availabilities 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,250 sqft. Most buildings in this market are around 1 floors. Most buildings in this area were built in 1987.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Professional services is the dominant industry in this market. Most of the folk of Madison Avenue work from home. Commuting more than an hour and a half a day is the norm for those who opt to reside in this part of town.