On average, listings lease in the $0's per square foot per year. The Westbrook submarket is going through a decline in rates. In the last 3 months, the median rate decreased $16 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 7 listings have been listed, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 3,460 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this area are around 2 floors. Most buildings in this area were built in 1900 and are Class Class B.