Most listings are in the $20's per square foot per year. The Bridgeport region is experiencing a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 8% decline in rent.
Compared to the rest of the Fairfield market, the Bridgeport region has smaller rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 16 listings have been made available, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 6% of the office spaces in the Bridgeport 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 available, 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 market are around 4 stories. Most buildings in this region were built in 1982 and are Class B.