On average, listings lease in the $20's per square foot per year. The Allegheny County submarket is going through a a rise in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 2% increase in rent.
In the last 90 days, 322 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the office spaces in the Allegheny County 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,680 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are approximately 3 stories. Most buildings in this area were built in 1982 and are Class B.