On average, listings lease in the $20's per square foot per year. The Green Park region is going through a a boost in rates. In the last 3 months, the median rate went up $24 per sqft per year.
In the last 90 days, 6 listings have come on the market, which means new availabilities most likley are 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 5,500 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this region are around 2 floors. Most buildings in this region were built in 1991 and are Class C.