The typical asking rate per listing is in the $10's per square foot per year. The Westbrook region is seeing a a boost in rates. In the last 3 months, the median rate rose $16 per sqft per year.
In the last 90 days, 4 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,700 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this market are approximately 2 stories. Most buildings in this region were built in 1900 and are Class Class B.