The typical asking rate per listing is in the $10's per square foot per year. The Center City submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% increase in rent.
In the last 90 days, 16 listings have been posted online, which means listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 6% of the listings in the Center City are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,730 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this market are around 3 stories. Most buildings in this market were built in 1947 and are Class C.
Professional services is the dominant industry in this area. Most of the residents of Center City work from home. Commuting under 5 minutes a day is the norm for those who opt to reside in this part of town.