The typical asking rate per listing is in the $10's per square foot per year. The Chelsea region is going through a a rise in rates. In the last 3 months, the median rate went up $19 per sqft per year.
In the last 90 days, 0 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About Inf% of the available leases in the Chelsea 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 available, so finding a space for a small business might be tough.
Even though the median size is 6,300 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 2001.