My office is in a house called "South Hall" on the campus of Woodmont Christian Church.
The church is on the corner of Woodmont Blvd. and Hillsboro Rd.
It is the white church with the really tall spire. 
The house is on the south end of the church campus closest to Green Hills Mall. 
The address is: 3605 Hillsboro Road, Nashville, TN 37215

Click here for MapQuest Directions.

Pictures of South Hall: