I'm not familiar with a builder of this name, and I didn't find it in any of Jerry's books, but this is a name with a couple of spelling variations found in the mountains of western North Carolina. I've seen it spelled Sweitzer, Setser and Setzer. The last spelling is the way my kin in Macon County, NC spell it. Up in the Waynesville area I think it's commonly spelled as you show it. As I understand it it's all one large German family with various spellings as decreed by the local tax collector or census taker.