Most listings are in the $0's per square foot per year. The South Philadelphia East submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $34 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 0 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About NaN% of the listings in the South Philadelphia East are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around sqft. Most buildings in this region are close to 28 stories. Most buildings in this area were built in 1930 and are Class B.