The conclave to elect a new pope takes place in the Sistine Chapel, located within the Apostolic Palace in Vatican City. This has been the permanent location for every conclave since 1878, with the first conclave held there in 1492
. During the conclave, the cardinal electors are sequestered in the Sistine Chapel, which is sealed off from the outside world until a new pope is elected. They stay nearby in the Casa Santa Marta guesthouse and are transported to the chapel for voting sessions
. Before the voting begins, the cardinals celebrate a special Mass at St. Peter's Basilica and then proceed in solemn procession to the Sistine Chapel where the election takes place exclusively
. In summary, the conclave is held in the Sistine Chapel in Vatican City, with cardinals residing temporarily in the nearby Casa Santa Marta during the election process
