building which is home to a court

A courthouse is a building that holds a court. Some courthouses also have offices for the prosecutor and prosecutor's assistants. In small cities, some courthouses have other offices for local government officials. The term is common in North America while in most other English-speaking countries, they are simply called "courts" or "court buildings". In most of continental Europe and former non-English-speaking European colonies, the equivalent term is a palace of justice

Orange County, Vermont courthouse
The Iowa Supreme Court building
The Supreme Court of the United States building