The urban setting of the basilica changed fundamentally between 1816 and 1824 when Giuseppe Valadier created the monumental Neo-Classical ensemble of Piazza del Popolo, commissioned by Pope Pius VII. The ancient monastery of the Augustinians was demolished, the extensive gardens were appropriated and a new monastery was erected on a much smaller footprint in Neo-Classical style. This building covered the whole right side of the basilica with its side chapels, wrapping around the base of the bell tower and reducing the visual prominence of the basilica on the square.