On average, listings lease in the $20's per square foot per year. The Buffalo submarket is going through a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 6% rise in rent.
Compared to the rest of the Buffalo market, the Buffalo region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 74 listings have been made available, so you'll want to check back regularly for new listings. About 80% of the office spaces in the Buffalo are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,000 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this market are around 3 stories. Most buildings in this market were built in 1940 and are Class A.