On average, listings lease in the $30's per square foot per year. The Kingston submarket is experiencing a an increase in rates. In the last 3 months, the median rate increased $30 per sqft per year.
In the last 90 days, 6 listings have been listed, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 33% of the available space in the Kingston are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,250 sqft. Most properties in this area are approximately 2 floors. Most buildings in this market were built in 1910 and are Class Class B.