Compared to the rest of the Philadelphia market, the Center City region has higher rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 219 listings have come on the market, so you'll want to check back regularly for new listings. About 4% of the office spaces in the Center City are subleases, so you will probably have to consider a longer term 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 5,730 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are approximately 20 floors. Most buildings in this region were built in 1930 and are Class A.