On average, listings lease in the $20's per square foot per year. The Westbrook submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $22 per sqft per year.
In the last 90 days, 5 listings have come on the market, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 480% of the available leases in the Westbrook 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.
Even though the median size is 5,430 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this market are close to 2 floors. Most buildings in this market were built in 1900 and are Class Class B.