Palazzo della Valle, Palace near Corso Vittorio Emanuele II, Rome, Italy.

Palazzo della Valle is a palace located near Corso Vittorio Emanuele II in Rome. The building displays a mix of Renaissance and Baroque architectural features with decorated stone facades and multiple levels of windows.

Construction began in 1508 for Cardinal Andrea Della Valle and was completed in 1523; Vasari credits Lorenzo Lotti, while others propose Antonio da Sangallo the Younger or Andrea Sansovino. The Del Bufalo family acquired it in 1633, and Ottavio Federico Del Bufalo moved the portal leftward in 1711. Since 1948 it has housed the Confederazione Generale dell'Agricoltura.

The Della Valle family gave its name to the surrounding area, and the palace's third facade on Largo del Teatro Valle carries their coat of arms: two rampant lions facing each other, five stars and a crowned eagle. Above the rusticated portal sits a relief with three ancient Roman female busts. The windows of the first floor are inscribed "ANDREAS CAR DE VALLE", except the one above the portal, which reads "ANDREAS DE VALLE EPS MILETEN".

The palace is not open for casual visits since it serves as an administrative center. Those interested in viewing should contact relevant cultural institutions in advance to arrange access.

The main hall's ceiling of rosettes and scrollwork, with frescoed walls, is attributed to the school of Giulio Romano or to Raffaellino del Colle. Vasari records Giulio Romano's workshop as active in the palace. The cardinal's antique collection once numbered 238 restored pieces, displayed in the courtyard and hanging garden.