On average, listings lease in the $60's per square foot per year. The Washington Heights region is going through a a boost in rates. In the last 3 months, the median rate rose $17 per sqft per year. That's a 37% rise in rent.
Compared to the rest of the New York City market, the Washington Heights submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 6 listings have been posted online, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. About 50% of the listings in the Washington Heights are subleases, so you might be able to find a shorter term or below market rent. 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 around 5 stories. Most buildings in this area were built in 1922 and are Class C.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this region. Commute by car is the most popular way to get to work amongst Washington Heights occupants. Commuting approximately an hour and a half a day is the norm for those who opt to reside in this part of town.