Most listings are in the $10's per square foot per year. The Topsham submarket is going through a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year. That's a Inf% increase in rent.
In the last 90 days, 2 listings have been made available, which means office spaces might be 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 posted, so finding a space for a small business might be tough.
Even though the median size is 9,600 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this region are around 1 floors. Most buildings in this region were built in 0 and are Class B.