The palace of Postal and Telegraph services, built between 1926 and 1932, is situated at Piazza del Carmine in a area between via Maddalena and vico Sassari.

The building stands on several levels including the mezzanine floor, where the offices open to the public are located, and the two upper floors for administrative offices. The building is characterized by a central body delimited by two prominent side wings, also visible in the pillars that vertically outline the entire building. In the side wings the aligned windows are completely different on each floor, while in the central body, an atrium(consisting of three large arched openings that allow the access to the building) supported by four Doric columns dominates the entrance's staircase. The building is completed by a protruding cornice with a parapet and the central top aligned with the atrium.

This impressive building is located at the corner of Via Roma and Largo Carlo Felice, in a perfectly symmetrical position to the Town Hall.

The construction works started in 1925 and ended five years later, making it one of the most manifold works of all the buildings under the arcades that follow one another along the Via Roma. The building is structured onto several floors, separated from each other with frames. Above the cornice, next to the three main openings placed in the middle, a tympanum is visible, which is unique compared to all the adjacent buildings. The building is completed by Neo-Mannerist style decorations.

The building located at the south-west side of Piazza del Carmine, housed the Superintendency of Public Works.

The building was inaugurated in 1927. On the third floor, it is possible to admire four works made by the master Filippo Figari: "The Farmyard", "The Church", "The House" and "The Village"; realised between 1928 and 1929, they represent typical Sardinian life scenes.

The regional council of Sardinia is located in Via Roma. It was opened in December 1988.

The Regional Council consists of three buildings: the first, in front of Via Roma, is structured on six floors with the offices inside, the second overlooks Via Cavour and is the seat of the Council Groups and the Library, and the third, the Assembly room, located between the first two palaces. A distinctive feature of the building is the use of granite for the paving. Under the arcades of the Regional building complex it is possible to admire the sculptures of the artist Costantino Nivola and the drawings made by Salvatore Fancello, all having the same subject, Sardinia and its people.

The building, erected in mid-nineteenth century, is situated at Via Genovesi near the Brondo Zapata Palace. It takes its name from the De Candia family who owned it until the end of the XIX century.

At the end of the nineteenth century the building was taken over by Muntoni family that held the property until the fifties, when they sold it to the Inserra family, still owner of the building. The Neoclassical front is on two levels and it's characterized by the floral decorations visible in the lintel of the entrance and in the lunette of the windows in the first floor. These open onto the Via Genovesi with wrought iron railings balconies that differentiate them from the second floor's windows without balconies or special decorations. The entrance hall's barrel vault and the frescoes present in the two-storey rooms are superbly manufactured.

Cugia Palace, also called Palazzo Nieddu is located at Via Genovesi, next to Siotto Palace. The Neoclassical facade is articulated on two floors and a ground floor.

The coat of arms of the Carroz and Centelles families visible on the large balcony of the first floor of the building shows that the Earl of Quirra (Don Gioacchino Carroz Centelles) lived in this building, after moving from the Castle of San Michele. In the early nineteenth century, the lawyer Pietro Nieddu became its owner and commissioned to the architect Gaetano Cima the renovation of the building, which also included the façade. The owners of the palace succeeded over time, up to the Cugia family.

The Palazzo Civico of Cagliari is the municipal seat of Cagliari. The building is located in Via Roma, in the lower part of the district of Stampace.

The former Town Hall, located in Castello district, was the municipality seat until the end of the nineteenth century. In 1896 the City Council decided to move the Town Hall to via Roma, in the area that overlooks the harbour. The building was inaugurated in 1907.

The losses caused by bombing in 1943, were so serious that it took several years to restore the building to its original appearance. The building, made of limestone, it's a perfect combination of Catalan-Gothic style visible in the porch, and the Art Nouveau of the facade. The main facade has seven arches, in addition to the central one, nine metres high, through which we reach the inner courtyard of the palace. The facade is completed by two octagonal turrets, thirty-eight metres high, while in the corners of the building stand out four obelisks, decorated with the carved heads of “Quattro Mori”. The facade is adorned with various bronze sculptures including an eagle, placed in support of the emblem of the city, two lions on the main facade and the works that symbolize the Agriculture, the Trade and the Industry.

In the “Sala Consiliare” (Council Room) there are three huge paintings by Filippo Figari, made between 1916 and 1924, respectively representing the vicar of Pisa with the Archbishop of Cagliari, Vittorio Amedeo II of Savoy and a group of kneeling Moors. The “Sala della Giunta” hosts some paintings by Marghinotti and a retablo of the councilmen by Pietro Cavaro. The “Sala dei Matrimoni” (Weddings Room) houses a painting by Figari. In this room, inside glass cases, there are jewels, archaeological finds and the seventeenth-century statue representing St. Augustine. The “Sala del Sindaco” (Mayor Room) hosts a large Flemish tapestry, made in 1620 by Franciscus Spierink. Finally, in the “Sala Sabauda” (Savoy Room), there are three paintings by Marghinotti: two official portraits of Carlo Alberto and Vittorio Emanuele II, while the third shows the arrival of Carlo Alberto in Cagliari in 1840.

The building is located between the De Candia Palace and the Teatro Civico. It was built in 1622 by Antonio Brondo Count of Serramanna.

In 1670 the Zapata family acquired the ownership of the building as a result of a marriage between two members of the families Zapata and Brondo. The doorway that opens on Piazza Lamarmora is dominated by a gable bearing the coat of arms of the Marquis of Villacidro, Francesco Lussorio Brondo and a marble plate dedicated to Antonio Brondo.

Boyl Palace is one of the most representative noble buildings of the district of Castello. It was erected in 1840 by Carlo Boyl Pilo, Marquis of Putifigari.

The building was designed in the neoclassical style, along the lines of Porta Cristina and of the Royal military arsenal's main entrance, these also designed by the Marquis of Putifigari.

The building consists of a marble parapet adorned by four statues representing the Seasons, in the central part the gentle coat of arms of the House is carved. Below the inscription that reminds the year when the building was erected: "COMES KAROLUS PILO BOYL EX MARCHIO PUTIFIGARI INSTAURAVIT ANNO MDCCCXL".

A Pisan tower, which served as access to Castello district and was contemporary with those of San Pancrazio and Elephant, was absorbed by the building. The tower suffered three devastating attacks: the British in 1708, the Spanish siege of 1717, when it lost its upper part and the French attack in 1793. Three cannonballs stuck on the façade of the building are a vivid testimony of the three attacks suffered. Beyond the gate, on the left side, you can see a Roman funeral stele, which had been walled up in the tower along with other inscriptions. At the end of the nineteenth century, the palace was acquired by the Barons Rossi's family. The current owners are the Earls from Marche, Tomassini Barbarossa.

The building is located along Viale Trieste on the corner of Via XXIX Novembre. It was planned by Riccardo Simonetti, and made definitely in 1921.

The combination of Liberty elements with the Renaissance’s style, the refinement and the attention to details make this palace a unique work. The corner of the building is particularly remarkable, by superimposing the bow window on each floor. The two façades show openings and balconies which are totally different in the three floors, but they are all richly decorated with an ornament that combines concrete, iron and terracotta.