On average, listings lease in the $0's per square foot per year. The Upper West Side submarket is seeing a decrease in rates. In the last 3 months, the median rate fell $147 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 38 listings have been posted online, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, 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 approximately 6 stories. Most buildings in this market were built in 1920 and are Class A.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Information is the dominant industry in this market. Most of the occupants of Upper West Side work from home. Commuting around 20 minutes a day is the norm for those who opt to reside in this part of town.