On average, listings lease in the $10's per square foot per year. The Northern Liberties - Fishtown region is seeing a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 12% decline in rent.
Compared to the rest of the Philadelphia market, the Northern Liberties - Fishtown region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 2 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 300% of the listings in the Northern Liberties - Fishtown 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 posted, so finding a space for a small business might be tough.
Even though the median size is 4,500 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this region are around 4 stories. Most buildings in this area were built in 1950 and are Class B.