The typical asking rate per listing is in the $10's per square foot per year. The Strafford County submarket is going through a decline in rates. In the last 3 months, the median rate decreased $8 per sqft per year. That's a 33% decline in rent.
In the last 90 days, 111 listings have been made available, so you'll want to check back regularly for new listings. About 26% of the listings in the Strafford County are subleases, so you might be able to snag a great spot on a short term. 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 2,500 sqft. Most buildings in this market are close to 2 floors. Most buildings in this area were built in 1949 and are Class B.