The Palazzo Chigi is a palace or noble residence in Rome and the official residence of the Prime Minister of the Italian Republic. Since February 22nd 2014, the occupant of Palazzo Chigi has been Matteo Renzi.The Palazzo, overlooking the Piazza Colonna and the Via del Corso, was begun in 1562 by Giacomo della Porta and completed byCarlo Maderno in 1580 for the Aldobrandini family. In 1659 it was purchased by the Chigi family. It was then remodelled by Felice della Greca and Giovan Battista Contini. It has five floors, a broad stairway that leads to the living rooms, and a courtyard decorated with a fountain, designed by Giacomo della Porta.