On average, listings lease in the $30's per square foot per year. The West Chester region is going through a an increase in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 6% rise in rent.
In the last 90 days, 7 listings have come on the market, which means new listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 3,000 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are close to 3 stories. Most buildings in this region were built in 1930 and are Class A.