Most listings are in the $10's per square foot per year. The Strafford County submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $16 per sqft per year.
In the last 90 days, 111 listings have been made available, so you'll want to check back regularly for new listings. About 31% of the listings in the Strafford County 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,600 sqft. Most buildings in this region are around 2 floors. Most buildings in this market were built in 1948 and are Class B.