Bishop Williams has served in the Diocese of Limerick and Killaloe for the past six years having been consecrated in July 2008.
The Church of Ireland Diocese includes a number of Parishes taking in parts of County Tipperary including Cloughjordan, Nenagh, Roscrea, Shinrone and Killaloe.
The Dublin native said it's not a decision he came to lightly, but is convinced it is right both for himself, his family and the Dioceses.
Bishop Trevor has had a varied career as a parish priest, a religious broadcaster with the BBC in Northern Ireland and leader of the Corrymeela Community, a Belfast based reconciliation and peace building project
When he retires Bishop Williams and his family will move back to their home in County Down.
