Ways for recording "Chiefdom halls" (chefferie) in Cameroon

In Cameroon, the local authority is organised on two layers: the governmental and the traditional. The later plays in important role and is recognized as such by the national government. This traditional authority is called “chefferie” (in french) or “fon” in the english speaking part of the country (the local name).

The question here is, what Tag should be used for such entities. I feel like office:government is a bit too official for what it is when amenity:community_centre doesn’t reflect the responsibility given to the chief.

Has anyone faced that question? I understand that it could be something seen elsewhere in Africa, at least in the Bantou subregion.