Spain, Madrid
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Base International School in La Moraleja, Alcobendas, is a private international school for ages 1 to 18. It is part of Affinitas Education, a network of bilingual schools. The school offers IB (MYP and DP) as well as American and British curricula, plus a bespoke option. Preschool to High School pathways are provided through either the Spanish Bachillerato or the IB Diploma Programme. From Year 10, students follow an Academic and Career Guidance Plan to identify interests, choose Bachillerato, and plan university pathways. Each stage has its own campus building and outdoor area; facilities include small-class classrooms, a theatre, art rooms, a radio studio, an on-site dining hall, and sports facilities with courts and a swimming pool. Extracurriculars include robotics and programming in English. The school promotes multilingualism, with English as a core medium and French or German as additional languages. Stays Abroad and leadership programs support learning in a supportive community.
C. del Camino Ancho, 10, 28109 Alcobendas, Madrid, Spain
Colegio Base has 685 pupils, typical class sizes of 19, instruction in Spanish, English.
The Base International School is located on a multi-building campus in La Moraleja, Alcobendas, Madrid, Spain. The campus sits in La Moraleja, one of the greenest and most peaceful areas of Alcobendas, far from the noise and congestion of the city. The street address is C. del Camino Ancho, 10, 28109 Alcobendas, Madrid.
Preschool (1–6 years old); Primary (6–12 years old); Secondary (12–16 years old); National Baccalaureate (16–18 years old); International Baccalaureate (16–18 years old).
Private, international school. Base International School is part of Affinitas Education, a network of bilingual and international schools.
30 nationalities represented in the school.
A Guidance and psychopedagogy department supports learning and personal development, offering speech therapy, academic and career guidance, and emotional support from Preschool through Bachillerato. The school focuses on prevention, assessment, and addressing any learning or developmental needs.
Spain
Extended hours are available in the morning and afternoon: 7:30–9:30 and 17:00–18:30, depending on the stage.
School transport across Madrid operates on 19 bus routes reaching areas such as Chamartín, Chamberí, Salamanca, Arturo Soria, Sanchinarro, Tres Cantos, and Pozuelo. SMS notifications are sent in case of incidents, and students are accompanied safely from their front door to the classroom.
Annual tuition at Colegio Base ranges from EUR 6,813 to EUR 14,312 for 2026/27.
Colegio Base teaches American Curriculum, Bespoke Curriculum, British Curriculum for students aged 1 to 18.
Base International School offers Preschool, Primary, Secondary (ESO), and High School through either the Spanish Bachillerato or the International Baccalaureate Diploma Programme. The school provides an international curriculum that fosters critical thinking and global awareness, with a student-centered approach and small class sizes. From Year 10 (4º ESO), Base implements an Academic and Career Guidance Plan to help students identify interests, choose the most suitable Bachillerato, and plan university pathways. The campus in La Moraleja, Alcobendas hosts dedicated facilities for each stage, including sports, theatre, art, and an on-site dining hall. Extracurricular activities include robotics and programming in English. Base is part of Affinitas Education, an international network of bilingual and international schools.
Small class sizes.
100% pass rate in EvAU (university entrance exams) 2024. EvAU average score is 8.25. 30 nationalities represented in the school. Highest EvAU score achieved is 13.475 (out of 14).
Base students are admitted to leading universities worldwide. Common fields of study include Engineering, Sciences, Economics, International Relations, Law, and creative disciplines.
Base provides personalised support to help each student develop their talents. A Guidance and Psychopedagogy Department supports learning and personal development from Preschool through Bachillerato, including academic and career guidance. Extracurriculars span athletics, arts, and technology to foster student talents.
Base prioritizes emotional and social education as a core part of its values-driven approach, ensuring students receive a well-rounded, holistic education. An active safeguarding culture is in place, with staff trained to identify and respond to concerns. The school upholds respect, inclusion, and zero tolerance for bullying, celebrating diversity. Clear child-protection policies exist, led by a Safeguarding Coordinator who is available to students, families, and staff. Safer recruitment practices are followed to ensure every adult working with students is thoroughly vetted.
Base operates a Guidance and psychopedagogy department that supports learning and personal development. The department offers speech therapy, academic and career guidance, and emotional support from Preschool through Bachillerato. Our work focuses on prevention, assessment, and attending to any learning or developmental needs. This structure ensures students receive targeted support within an inclusive school community. The emphasis is on providing individualized strategies while maintaining a cohesive school experience.
Base is part of Affinitas, an international network of bilingual and international schools. Affinitas represents a bilingual environment and global approach. Base offers activities in English, including robotics and programming. Campus visits can be arranged in English.
Wellbeing comes first, always. An active safeguarding culture is in place, with staff trained to identify and respond to concerns. The school upholds respect, inclusion, and zero tolerance for bullying. Clear policies and an accessible safeguarding team support student wellbeing. The Safeguarding Coordinator is available to students, families, and staff.
Base maintains clear child-protection protocols led by a Safeguarding Coordinator. Staff receive training to identify and respond to safeguarding concerns. There is an accessible safeguarding team for students, families, and staff. The school promotes a culture of protection and duty of care. Safer recruitment practices ensure all adults working with students are thoroughly vetted.
1. Complete the contact form to start the admissions process. It lets Base get to know you and send personalised information tailored to your family. You will receive essential communications about the program and admissions timelines. This initial step sets the stage for a personalised follow-up.
2. Interview with admissions team. An interview with the admissions team follows. The interview provides an opportunity to discuss your child's needs, understand Base's educational approach, and view the campus. A tour of the school is included to help you experience the environment firsthand, and feedback about fit and next steps is provided after the meeting.
3. Submit the required documents. This formalises your interest and helps secure a place for your child with the support of our team. The admissions staff guide you through the documents needed and ensure everything is in order for review. Once documents are received and reviewed, you will be advised on the next steps.
4. Welcome to Base International School! A Family Coordinator guides you through onboarding and supports you throughout the school year. The onboarding includes introductions and scheduling and ongoing assistance to help your family settle into school life and engage with the community.