On average, listings lease in the $20's per square foot per year. The Northwest Philadelphia region is going through a a rise in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 12% rise in rent.
Compared to the rest of the Philadelphia market, the Northwest Philadelphia submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 14 listings have been listed, which means leases might be going fast. You'll want to be prepared to tour spaces as quick as possible. 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 3,320 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this area are close to 3 floors. Most buildings in this region were built in 1905 and are Class C.