On average, listings lease in the $20's per square foot per year. The Westmoreland County submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 20% increase in rent.
In the last 90 days, 17 listings have been made available, which means new availabilities are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 670 sqft. Most buildings in this market are close to 2 stories. Most buildings in this area were built in 1990 and are Class B.