On average, listings lease in the $20's per square foot per year. The Birmingham region is going through 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 Birmingham market, the Birmingham region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 105 listings have been posted online, so you'll want to check back regularly for new listings. About 5% of the listings in the Birmingham 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.
Even though the median size is 3,510 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this market are around 2 stories. Most buildings in this region were built in 1978 and are Class B.