On average, listings lease in the $50's per square foot per year. The Park Slope region is going through a decline in rates. In the last 3 months, the median rate fell $28 per sqft per year. That's a 33% decline in rent.
Compared to the rest of the New York City market, the Park Slope region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 8 listings have been listed, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 3,750 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this region are approximately 3 floors. Most buildings in this market were built in 1920 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Waste services is the dominant industry in this area. Commute by bike is the most popular way to get to work amongst Park Slope occupants. Commuting approximately an hour a day is the norm for those who opt to reside in this part of town.