Most listings are in the $50's per square foot per year. The Gowanus region is going through a a boost in rates. In the last 3 months, the median rate increased $9 per sqft per year. That's a 20% increase in rent.
Compared to the rest of the New York City market, the Gowanus submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 13 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 31% of the available space in the Gowanus 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.
Even though the median size is 5,200 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are close to 2 floors. Most buildings in this area were built in 1931 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Utilities is the dominant industry in this area. Commute by taxi is the most popular way to get to work amongst Gowanus folk. Commuting around an hour a day is the norm for those who opt to reside in this part of town.