Libertarios Unidos' first field was placed just beside the Defensores de Belgrano stadium, in the corner of Blandengues and Manzanares streets of Buenos Aires.

In 1926, Colegiales registered to dissident body, Asociación Amateurs de Football (AAmF) where the team made a good campaign with a squad nicknamed "Los Fenómenos (The Phenomenons)" due to the skilled players that formed it.

Most frequently line-up was: Tauzlet; Rossi, Tachini; Del Corro, Machiavello, Alberico; Martínez, Toscano, Giudice, Granara Costa, Paduano.

The line-up was: Santiago Sesana; Rossi, Silva; Del Corro, Pausini, Felipelli; Martínez, Toscano, Giudice, González, Coviello.

In 1948 the club moved to its current sports field of Antonio Malaver and Gervasio Posadas streets in Florida Oeste, Buenos Aires.

A new restructuring in Argentine football relegated Colegiales to a lower division, until 6 January 1956, when the squad won another title when defeated Los Andes 1–0.

Coached by Guido Ugobono, the line-up for that match was: Negri; Álvarez, Cosentino; Pérez, Aragón, Cappano; Fassani, Morales, López, Tognola, Vecino (who scored the goal).

The next year Colegiales finally got the promotion after beating Villa Dálmine, although the club was punished by the riot caused by its supporters in a match against Tigre.

Colegiales (which had previously won the 2024 Clausura) defeated Los Andes (winner of Torneo Apertura) 2–0 on aggregate to secure their place in the 2025 Primera Nacional.

The club currently plays at "Libertarios Unidos" stadium, sited in Antonio Malaver and Gervasio Posadas streets in Florida Oeste, Buenos Aires, since 1948.