Casa Mínima and the Legends of Pasaje San Lorenzo

Why is it significant?

Pausing in the picturesque, curved cobblestone alley of Pasaje San Lorenzo, you stand directly before one of the most famous and photographed architectural oddities in Argentina: the Casa Mínima at number 380.

Key Facts

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Pausing in the picturesque, curved cobblestone alley of Pasaje San Lorenzo, you stand directly before one of the most famous and photographed architectural oddities in Argentina: the Casa Mínima at number 380. Measuring a mere two meters and fifty centimeters across its front facade and stretching thirteen meters deep, this charming two-story whitewashed home holds the undisputed title of the narrowest freestanding residence in the entire metropolitan expanse of Buenos Aires.

Examine its tiny facade: on the ground floor sits a modest solid green wooden door, while the upper floor features a miniature wrought-iron balcony sheltered under a colonial clay-tile roof.

A romantic and widely repeated urban legend claims that the home was built in the early nineteenth century by a wealthy master for his freed slave following the passage of the 1813 Freedom of Wombs law and the formal abolition of slavery. According to the tale, the master granted the loyal freedman this tiny residual parcel between two grand houses. However, meticulous archaeological and archival research conducted by the nearby El Zanjón de Granados historic preservation team revealed a different truth: the house was originally part of a larger seventeenth-century colonial estate that was successively subdivided during the 1870s into minuscule rental rooms to house arriving laborers. Directly beneath the cobblestones of Pasaje San Lorenzo ran the subterranean bed of the Tercero del Sur creek, which drained storm waters into the Río de la Plata and today conceals excavated brick tunnels containing eighteenth-century smoking pipes, clay jars, and rum bottles.

Its miniature presence defiantly surviving amidst modern high-rises captures the poetic resilience of historic San Telmo. Standing on these narrow cobblestones beneath the tiny overhanging balcony, one feels an enchanting sense of intimacy that contrasts wonderfully with the colossal boulevards of downtown Buenos Aires.

Walk east along Calle Balcarce toward the corner of Avenida Independencia to reach El Viejo Almacén.