On average, listings lease in the $50's per square foot per year. The Westport submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $4 per sqft per year. That's a 7% rise in rent.
Compared to the rest of the Fairfield market, the Westport region has greater rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 32 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. About 3% of the office spaces in the Westport are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,800 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this market were built in 1978 and are Class A.