To meet this need, it was proposed to add a third floor to the building, but the project was withdrawn, and it was decided in 1927 to accommodate the University of Chile Law School in the east wing of the Casa Central.

The library (today the Central Archives Andrés Bello) was reorganized in 1936 by the then Rector Juvenal Hernández, funded through donations by various professors, including Amanda Labarca and Pablo Neruda.

[2] On September 5, 1938, the Casa Central was seized by members of the National Socialist Movement of Chile, with the rector Juvenal Hernández Jaque being held hostage.

President Arturo Alessandri gave the order, and two rounds of artillery were fired against the main entrance of the building, killing four people.

[6] The Casa Central was initially closed for a year, leaving open only the rector office, while the rest of the employees were relocated to the Torre 15 de San Borja.

[7] The renovations were completed in April 2015 for the cost of approximately $1,700 millions, which included the refurbishment of rooms to house the Senado Universitario, and exhibitions on the first floor.

The Carrara marble statue was created in 1881 by Nicanor Plaza to celebrate the 100th anniversary of the birth of Andrés Bello,[11] which was proposed by José Victorino Lastarria.