On average, listings lease in the $20's per square foot per year. The Northwest Philadelphia submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $28 per sqft per year.
Compared to the rest of the Philadelphia market, the Northwest Philadelphia submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 14 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. About 71% of the available leases in the Northwest Philadelphia 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 630 sqft. Most buildings in this area are close to 3 floors. Most buildings in this region were built in 1905 and are Class C.