On average, listings lease in the $0's per square foot per year. The Northwest Philadelphia region is seeing a decline in rates. In the last 3 months, the median rate decreased $32 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 2 listings have been posted online, which means leases are probably going fast. 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 23,000 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this region are around 3 stories. Most buildings in this area were built in 1930 and are Class C.