Most listings are in the $20's per square foot per year. The Kennebunk submarket is experiencing a a rise in rates. In the last 3 months, the median rate rose $8 per sqft per year. That's a 45% increase in rent.
In the last 90 days, 3 listings have come on the market, which means leases 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 4,000 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this region were built in 1890 and are Class B.