Palazzo Firenze, Renaissance palace in Campo Marzio district, Rome, Italy

Palazzo Firenze is a Renaissance palace in the Campo Marzio district with a trapezoidal layout and a facade designed by Bartolomeo Ammannati. The building displays classic Renaissance architectural features with detailed stonework across its exterior.

Construction of the palace began under Pope Paul III as part of a larger renovation project for Campo Marzio in 1550. This initiative connected the Pincio area with the Port of Ripetta.

The building houses frescoes by Prospero Fontana in several rooms, including the loggia and Sala del Granduca, depicting mythological scenes. These artworks show the kind of artistic decoration that was typical for palaces of that era.

Palazzo Firenze faces Piazza Firenze, off Via della Fontanella di Borghese in Campo Marzio, a short walk from the Spanish Steps and Piazza del Popolo. The entrance portal with its iron gate lies beneath the balustraded balcony; a blue parking sign stands at street level. The building is a working seat of the Società Dante Alighieri and the Italian UNESCO commission, so interior rooms are not freely visited.

The facade features a visual perspective trick designed to compensate for the irregular shape of the building site. Ammannati created optical effects that make the building appear more harmonious than its actual geometry suggests.