On average, listings lease in the $30's per square foot per year. The Mercer County region is going through a an increase in rates. In the last 3 months, the median rate increased $5 per sqft per year. That's a 18% increase in rent.
In the last 90 days, 141 listings have been made available, so you'll want to check back regularly for new listings. About 6% of the available leases in the Mercer County 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 posted, so finding a space for a small business might be tough.
Even though the median size is 3,500 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are around 2 stories. Most buildings in this market were built in 1985 and are Class A.