On average, listings lease in the $20's per square foot per year. The Jefferson County region is going through a an increase in rates. In the last 3 months, the median rate increased $25 per sqft per year.
Compared to the rest of the Birmingham market, the Jefferson County region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 201 listings have been posted online, so you'll want to check back regularly for new listings. About 230% of the available leases in the Jefferson County 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 3,430 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 2 floors. Most buildings in this market were built in 1978 and are Class A.