The school quickly outgrew its original facilities, necessitating a move to a new building on Bulevar Artigas by 1960 to accommodate its expanding student body and academic offerings.

By 1978, UAS had purchased a new site in the Carrasco neighborhood, signaling another phase of growth and expansion, including the addition of new facilities and programs to meet the needs of its diverse student population.

In 2015, UAS transitioned its accreditation to the New England Association of Schools and Colleges (NEASC), and in 2016, it inaugurated a new secondary wing, adding significant space and resources to support its educational mission.

The Early Childhood Center at the Uruguayan American School serves Nursery, Pre-Kindergarten, and Kindergarten students, aiming to foster a range of developmental skills through play-based learning and thematic units.

High School students (grades 9-12) engage in increasingly complex coursework, aimed at enhancing their analytical and critical thinking skills, culminating in the International Baccalaureate Diploma Program for 11th and 12th graders.

This phase of education at UAS is designed to integrate academic rigor with the cultivation of interdisciplinary skills, promoting independent thought and engagement with global issues.

The program aims to prepare students for higher education and future careers by fostering academic and technological proficiency, global awareness, creativity, and emotional intelligence.

The Uruguayan American School offers a College Counseling Program designed to assist students in grades 9-12 with the university exploration and application process.

Counselors work individually with students to research potential colleges and universities that align with their academic and personal goals, including guidance on merit and need-based scholarship opportunities.

Added in 2016, the Secondary School has two flexible learning spaces of 250 square meters each, designed for a variety of educational configurations and equipped with technology access points.

The Media Center caters to all grades, offering a wide range of resources including books in English and Spanish, magazines, CDs, and DVDs, along with comfortable reading spaces.