On average, listings lease in the $20's per square foot per year. The Allegheny County region is experiencing a an increase in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 10% rise in rent.
In the last 90 days, 529 listings have come on the market, so you'll want to check back regularly for new listings. About 3% of the listings in the Allegheny County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 5,000 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are approximately 3 floors. Most buildings in this market were built in 1982 and are Class B.