IULIA BOIARDO PICO COM(itissa) MIR(andulæ)AER(e) PUB(lico) A FUND(amentis) ER(exit)A(nno) D(omini) MCCCCLXVI Giulia Boiardo Pico, Countess of Mirandolawith public money built from the foundationsin the year of our Lord Jesus Christ 1468 To build this loggia, a tax of eight quattrins was instituted for each biolca (2933.63 m²) of land owned; however, since the works cost less than expected, the advanced money was returned.

In a watercolour by Giovanni Battista Menabue depicting a conflict that occurred in the square of Mirandola on April 27, 1799 between Germans, Cisalpines and Mantuans (exposed at the Civic Museum of the Risorgimento of Modena), it can be noticed, at the center of the facade of the building, the empty niche in which the statue of the Madonna was placed.

[8] The entire building is visually divided vertically into three parts in an east-west direction, corresponding to the three different phases of construction: the Renaissance loggia, the medieval core and the 18th century southern portico.

The lower part of the facade consists of a high portico, with eleven columns in Verona pink marble[9] that support frontally six round arches, two of which are deep laterally.

On the inner side of some columns, under the portico, are engraved the ancient units of measure of the Mirandola district: pole (pertica), arm (braccio), foot (piede), as well as the shape of a brick and a tile.

The upper part of the north facade, made of exposed bricks, is decorated with four biforas with marble columns and a French window, all embellished with terracotta friezes with floral and zoomorphic motifs, similar to those of the nearby Bergomi Palace.

From the base of the palace starts a long walkpath called Listone (about 242 m, 4 m wide), made of porphyry cubes of the Bolognese type and that crosses longitudinally the entire Constituent square, up to the Oratory of the Madonnina.

The mayor of Mirandola, Count Felice Ceccopieri, decided in 1837 to transfer the clock on the roof of the town hall, after resizing the dial, which was installed on a simple metal frame flush with the facade.

During the restoration works at the beginning of the 20th century it was decided to create a stone clock exhibition with a new glass dial divided into 12 triangles with black and red numbers and night gas lighting.

The dial of the watch, in frosted glass with Roman numerals and illuminated at night, is enclosed in a square case in hen stone (Verona tuff limestone), supported at the sides by two carved griffins.

[11] The southern facade was built in a simple way by Angelo Scarabelli Pedoca between September 1783 and 1784, when it was decided to demolish the houses that supported the town hall in order to create the "gabella de' grani" (grain market).

In particular, in the inner courtyard of the palace, on December 13, 1928, work began to create an imposing white marble staircase in eclectic and monumental style, designed by the architect Mario Guerzoni.

On July 27, 2012, the fire brigade extracted some of the paintings kept in the Great Hall, including the Fall of St. Paul by Sante Peranda, the Adoration of the Three Kings by Palma il Giovane and St. Agata by Pietro Faccini;[15] the saved works of art were then taken to the restoration centre set up at the Ducal Palace of Sassuolo.

Pending the recovery of the historic headquarters and in order not to interrupt the administrative activity, after an initial emergency arrangement of the municipal offices in the containers of the temporary housing modules, on September 21, 2013 was inaugurated the new town hall of Mirandola, located on the western outskirts of the city, in Giovanni Giolitti street.

[20] In addition, other projects for the recovery of several large public buildings in the historic center of Mirandola damaged by the 2012 earthquake (including the Palace of the Fascist Militia), were to bring back the municipal offices, are also being studied.