Most listings are in the $30's per square foot per year. The Norwalk region is going through a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 3% decline in rent.
Compared to the rest of the Fairfield market, the Norwalk submarket has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 66 listings have been made available, so you'll want to check back regularly for new listings. About 5% of the available leases in the Norwalk are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 2,000 sqft. Most buildings in this area are close to 3 floors. Most buildings in this area were built in 1983 and are Class B.