Compared to the rest of the Birmingham market, the Mountain Brook submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 9 listings have been posted online, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 22% of the available leases in the Mountain Brook are subleases, so you might be able to snag a great spot on a short term. 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 close to 3 floors. Most buildings in this area were built in 1972 and are Class B.