What was the original function of the Cabildo?

The building functioned as the town council seat during the colonial period and served as the administrative headquarters for the Viceroyalty of the Río de la Plata.

Which architects designed the facade of the building?

Jesuit architect Andrea Bianchi designed the facade, working alongside architect Giovanni Battista Primoli on the broader construction project.

What role did the Cabildo play in the formation of the Argentine government?

The building served as the meeting place for the assembly that established the initial autonomous Argentine administration during the May Revolution.

Why was the building reduced in size from its historic layout?

City authorities demolished arches on both sides of the structure to construct Avenida de Mayo and Julio A. Roca street, leaving a narrower central section.

What happened to the historic clock from the Cabildo tower?

The original tower clock was relocated to the Iglesia de Balvanera in Buenos Aires after a replacement mechanism from manufacturer Thwaites & Reed was installed.

How was the earliest Cabildo building funded?

Initial municipal construction was financed through tax revenues collected by the port of Buenos Aires.

Buenos Aires · Argentine

Cabildo de Buenos Aires: ce qu’il y a autour, comment y aller et quand venir · 2026

Residents crossing Plaza de Mayo learn to route their daily commutes around political gatherings outside the Cabildo, trading quiet transit through the colonial arches for the regular pulse of city protests.

Cabildo of Buenos Aires · CC BY-SA 4.0

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À propos du lieu

The Cabildo stands on Plaza de Mayo as the colonial town council seat where early domestic governance began.

Mayor Manuel de Frías initiated the original project on Plaza de Mayo to house the municipal council and the city prison. Port taxes financed the humble masonry structure, which builder Juan Méndez constructed alongside specialist roof weavers. Inadequate maintenance caused the initial walls to deteriorate and collapse, forcing administrators to convene in the governor residence until funds permitted a durable replacement.

Jesuit architects Giovanni Battista Primoli and Andrea Bianchi designed the lasting replacement, with Bianchi creating the signature arcaded facade. Later renovations led by architect Pedro Benoit stripped away colonial roof tiles, installed balustrades, and added a Nordic-style dome over an elevated central tower to impose an Italian aesthetic, transforming the municipal seat into regional civil court chambers.

Urban modernization truncated the structure during major avenue projects. Workers dismantled arches on the northern flank to cut Avenida de Mayo, while engineers removed Benoit's heavy tower to preserve structural stability. Subsequent road construction along Julio A. Roca street shaved off the southern arches despite public protest, leaving the historic monument with a compressed profile facing the civic plaza.

Associations

May RevolutionDelegates gathered inside the hall to establish the original domestic government.
Avenida de MayoBoulevard expansion removed municipal arches and disrupted the original symmetry.
Structural instabilityOverweight tower additions and neglect caused structural cracking and demolitions.
Plaza de MayoThe public square forms the historic focal point directly in front of the arcade.

Faits

Port taxes from Buenos Aires funded the initial construction of the municipal cabildo.
Jesuit architects Giovanni Battista Primoli and Andrea Bianchi drew the plans for the enduring building.
The structure served as the seat of the colonial town council and the viceregal government.
Argentina declared the cabildo a National Historic Monument through national heritage legislation.
The historic tower clock mechanism was relocated to the Iglesia de Balvanera.

Mis à jour le 10 septembre 2026Source : Wikipedia

Cabildo de Buenos Aires: ce qu’il y a autour, comment y aller et quand venir · 2026

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The Cabildo stands on Plaza de Mayo as the colonial town council seat where early domestic governance began.

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