On average, listings lease in the $20's per square foot per year. The Exeter submarket is going through a a boost in rates. In the last 3 months, the median rate went up $21 per sqft per year.
Compared to the rest of the Greater Boston market, the Exeter region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 11 listings have come on the market, which means new availabilities 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,800 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are close to 2 stories. Most buildings in this region were built in 1900 and are Class A.