On average, listings lease in the $0's per square foot per year. The Kingston region is going through a decline in rates. In the last 3 months, the median rate fell $34 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 6 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 3,910 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are around 2 stories. Most buildings in this market were built in 1900 and are Class Class B.