On average, listings lease in the $20's per square foot per year. The Franklin submarket is going through a an increase in rates. In the last 3 months, the median rate increased $24 per sqft per year.
Compared to the rest of the Greater Boston market, the Franklin region has greater rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 6 listings have come on the market, which means listings 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 posted, so finding a space for a small business might be tough.
Even though the median size is 7,200 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are close to 2 floors. Most buildings in this region were built in 1930 and are Class B.