Compared to the rest of the Metro Atlanta market, the Decatur submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 8 listings have been posted online, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 2,000 sqft. Most properties in this region are around 8 stories. Most buildings in this area were built in 1966 and are Class A.