Most listings are in the $10's per square foot per year. The Portsmouth submarket is experiencing a decrease in rates. In the last 3 months, the median rate decreased $63 per sqft per year. That's a 80% decrease in rent.
In the last 90 days, 27 listings have come on the market, which means new availabilities are probably going fast. 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 3,000 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this area were built in 1978 and are Class C.