Most listings are in the $20's per square foot per year. The Hartford submarket is going through a a boost in rates. In the last 3 months, the median rate increased $23 per sqft per year.
Compared to the rest of the Hartford market, the Hartford region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 96 listings have been made available, so you'll want to check back regularly for new listings. About 77% of the listings in the Hartford are subleases, so you might be able to find a shorter term or below market rent. 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 properties in this region are approximately 3 floors. Most buildings in this area were built in 1939 and are Class B.