This was the office of the McIntyre water department for many years. I’m not sure if it’s still in use.
Water Department, McIntyre
Vanishing Georgia: Photographs by Brian Brown
Since 2008. A visual survey of Georgia's historic architecture and culture. 9,000 locations. 30,000 images.
This building looks like it once was home to a store of some kind, possibly a larger (and later) grocery like Thompson’s, or a general merchandise store. Doesn’t look like it was once someone’s house.