The recently renamed Georgia Tech College of Design (previously College of Architecture) will be the venue for Atlanta Service Jam 2017. It is walkable from Midtown Atlanta (15-20 minutes), or you can ride on the free Tech Trolley from the Midtown MARTA stop. Times and route map here.
If you plan to drive there are a number of options. Closest are the metered spots along Brittain Dr NW ($2/hour) or the visitor parking slightly further away on Ferst DR NW (also $2/hour). A full day of parking is $15 at the lot on 5th Street (opposite Barnes & Noble bookstore) and closer to Midtown. This location has the advantage of letting you pay as you go rather than having to guess and pay upfront. More info available here and a map showing the different areas in blue.
For Uber or Lyft the address is 246 4th St NW, Atlanta, GA 30313.