Base International School

Base International School is a private, non-denominational, and independent institution inspired by the Institución Libre de Enseñanza, emphasizing critical thinking, intellectual freedom, and mutual respect. It operates under a 'Culture of Care' that prioritizes the emotional and social well-being of students, viewing them as individuals before learners. The school fosters a horizontal, dialogue-driven relationship between educators and students, aiming to prepare responsible global citizens through a holistic and international educational model.

The school is an IB World School, delivering the Primary Years Programme (PYP), the Middle Years Programme (MYP), and the IB Diploma Programme (DP). The academic stages include Preschool (ages 1–5), Primary (ages 6–11), Secondary (ages 12–15), and a choice between the Spanish Bachillerato or the IB Diploma Programme (ages 16–18). Additionally, students from Year 8 onwards may pursue an American Dual Diploma, allowing them to earn both the Spanish Bachillerato and an American High School Diploma.

The school reports a 100% pass rate in the 2025 university entrance exams and a 96% pass rate for the IB Diploma Programme, with an average score of 31.21. Graduates consistently achieve high proficiency in languages, with 100% pass rates in Cambridge C2 English, as well as official French (DELF) and German (Goethe) exams. Alumni attend leading universities in Spain and internationally, pursuing degrees in fields such as medicine, engineering, law, and business.

The school maintains a full in-house team of educational psychologists and counsellors to provide personalized attention. Reinforcement and enrichment programmes are designed by the school's team and adapted annually to meet individual student needs. A dedicated nurse is on-site every school day, and the campus is certified as cardio-protected.

The admissions process is a personalized conversation rather than a formal procedure, beginning with an initial inquiry and a personal interview. Following this, the school arranges a meeting with the student, and for applicants from Primary onwards, a trial day is required to assess the fit with the educational project. The school provides a dedicated Family Coordinator to support new families from the start of the enrolment process throughout their time at the school.

The academic year is organized into three terms: the first from 8 September to 19 December, the second from 8 January to 26 March, and the third from 7 April to 23 June. The school day begins at 9:00 for all stages, with staggered pick-up times. Free extended hours are available for all students from 7:30 to 9:00 and from 17:00 to 18:30.

The school is located on a single 31,000 m² campus in La Moraleja, which includes 20,000 m² of sports facilities such as an indoor swimming pool, two gymnasiums, a sports hall, seven basketball courts, an artificial-turf 7-a-side football pitch, and a federated athletics track. The Arts Centre, opened in 2024, features an art and design studio, a Black Box theatre, a dance studio, and music spaces. The campus also houses subject-specific science laboratories, a Primary Science Lab, vegetable gardens, a pond for environmental study, and a coworking space for families.

The school offers over 20 after-school activities, with two-thirds of students participating. Offerings include sports (football, basketball, volleyball, judo, athletics, rhythmic gymnastics, and chess), performing arts (theatre in English, music, choir, ballet, flamenco, and modern dance), and academic enrichment (robotics in English, ceramics, and art). Additionally, students can participate in the UNESCO Model United Nations (UNESMUN), student-run media outlets like Radio Base and Base TV, and international exchange programmes.