On average, listings lease in the $20's per square foot per year. The Decatur submarket is seeing a an increase in rates. In the last 3 months, the median rate rose $5 per sqft per year. That's a 27% increase in rent.
Compared to the rest of the Metro Atlanta market, the Decatur region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 18 listings have been made available, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,250 sqft. Most buildings in this market are approximately 8 stories. Most buildings in this region were built in 1974 and are Class A.