Studio One was a recording studio, located in the northern Atlanta, Georgia suburb of Doraville. The address was 3864 Oakcliff Industrial Court, Doraville Ga 30340. It is now occupied by a non related business and used as a warehouse.
Check out the list of albums recorded here, it includes not only four Lynyrd Skynyrd album but also probably the earliest recording featuring Ronnie James Dio on vocals.
In the 1970s and 1980s Doraville was a haven for blue-collar white Southerners, aka rednecks. This was gone by the early 2000s, as much of the original population was displaced by immigrants.
This is what the address on the wiki page looks like today. I almost have a hard time believing it. The red car in the center of the picture is parked next to the door of number 3864.