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Colegio Base

Spain, Madrid

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The school at a glance
Instructs in Spanish, English
Fees €6,813 - 14,312
Ages 1 - 18 years
Pupil numbers 685
Type Co-educational
Opened 1962
Bus Service Yes
Academic offering
Curriculum American Curriculum, Bespoke Curriculum, British Curriculum
Taught languages Spanish, English, French, German
Typical class size 19
Strengths STEM, Performing Arts, Languages
Clubs Academic and Intellectual, Arts and Creative, Cultural and Language
Stages Infant/Toddler Care, Early Years, Primary School, Secondary School
Introduction

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

The Essentials

Colegio Base has 685 pupils, typical class sizes of 19, instruction in Spanish, English.

Location
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.

Stages
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).

Type
Private, international school. Base International School is part of Affinitas Education, a network of bilingual and international schools.

Pupil Nationality Mix
30 nationalities represented in the school.

Additional learning support
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.

Country affiliation
Spain

School day structure
Extended hours are available in the morning and afternoon: 7:30–9:30 and 17:00–18:30, depending on the stage.

Bus service
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.
Diving Deeper

Uniform Requirement
Uniforms are not required; the school has no uniform policy.

Food Options
The school operates its own canteen, with meals prepared on-site by staff using carefully selected raw materials. Menus are designed by a nutrition specialist. For infants to 3rd Primary, meals are served at the tables, while from 4th Primary onwards, meals are self-service with daily options. Dietary needs are accommodated and allergen information is shared with families.

Governance and Ownership
Base International School is part of Affinitas Education, an international group of bilingual and international schools. Affinitas provides resources, training, and an international network while preserving each school's identity.
Fees

Annual tuition at Colegio Base ranges from EUR 6,813 to EUR 14,312 for 2026/27.

Application & reservation fees

- Initial enrolment (one‑time, paid at first registration; non‑refundable and not deductible):
- EUR 600 (Infant)
- EUR 720 (Primary)
- EUR 730 (Secondary)
- EUR 730 (Bachillerato).
- Reservation of place for returning families (one‑time; invoiced in mid‑May; not refundable): EUR 630.

Tuition fees (monthly; escolaridad — billed per month)

Notes: the published monthly amounts are divided into ten monthly payments (September to June) for most year groups; 2º Bachillerato (Spanish and IB) is billed over nine monthly payments (September to May). All amounts below are shown as monthly fees.

- Infant (full day): EUR 630 per month.
- Infant (morning schedule only): EUR 490 per month (available only for children in the first cycle of Infant—ages 1–2).
- Primary:
- Years 1–2 Primary: EUR 800 per month.
- Years 3–4 Primary: EUR 820 per month.
- Years 5–6 Primary: EUR 830 per month.
- Secondary (ESO):
- Years 1–2 ESO: EUR 890 per month.
- Years 3–4 ESO: EUR 910 per month.
- Bachillerato (National route):
- 1º Bachillerato Nacional: EUR 1,030 per month.
- 2º Bachillerato Nacional: EUR 1,145 per month (billed over nine months: September to May).
- International Baccalaureate (IB Diploma Programme):
- 1º IB (Programme Year 1): EUR 1,300 per month.
- 2º IB (Programme Year 2): EUR 1,445 per month (billed over nine months: September to May).

Billing schedule and payment terms

- Annual tuition is normally divided into ten equal monthly instalments (September through June) for each billed concept. 2º Bachillerato (both Spanish and IB) is divided into nine monthly instalments (September through May).
- Reservation of place for the next academic year is invoiced in mid‑May; the reservation amount is returned in September to families who continue at the school; families who do not notify non‑renewal by the stated deadline may forfeit the reservation/refund or be charged the September instalment as set out in the school's enrolment terms.
- The initial enrolment fee (matrícula) is paid once at first registration and is non‑refundable and not deductible from future fees.

Boarding fees

- Boarding is not offered / no boarding fees are listed in the school's published fee schedule.

Other services and additional fees

- School meals and catering:
- Half‑board (meal plus snack): EUR 245 per month.
- Single day meal: EUR 20 per occasion.
- Bachillerato (meal and snack — 2 days per week): EUR 125 per month.
- Snack / bocadillo: EUR 45 per month.
- Extended hours (7:30–9:00 and 17:00–18:30): provided free of charge for Infant and for the rest of the stages (as published).
- School transport (bus):
- Regular transport (1 route): EUR 150 per month.
- Transport (2 routes): EUR 235 per month.
- Bachillerato transport: EUR 100 per month (1 route) / EUR 150 per month (2 routes).
- Special‑zone transport: EUR 110 per month (1 route) / EUR 150 per month (2 routes).
- Other one‑off or annual costs:
- Psychological report (when required by the school's protocols): EUR 100.
- Annual medical check / recognition: EUR 68.
- Annual school accident insurance and healthcare service: EUR 107 (per annum, all courses).
- Graduation photograph (class photo/orla): EUR 25.
- Yearbook: EUR 50.
- Sibling registration fees / concessions:
- Matriculation for the second sibling: EUR 400 (second‑child registration fee).
- Matriculation for the third and subsequent siblings: published as exempt / free from the matriculation fee (as indicated in the school's fee schedule).

Refund information

- The initial enrolment fee (matrícula) is explicitly non‑refundable and not deductible.
- The reservation fee charged in mid‑May for returning families is non‑refundable if the family does not notify non‑renewal within the published deadline; for families who continue, the reservation amount is refunded in September (per the published enrolment terms and deadlines).

Fee payment options

- The school's published fee schedule and prices document lists fees, billing periods and non‑refund rules but does not specify public details of accepted payment methods (for example: bank transfer, direct debit, or card payment) within the fee schedule itself. For payment method arrangements and to confirm available payment channels, contact the school's admissions or finance office directly.
Academics

Colegio Base teaches American Curriculum, Bespoke Curriculum, British Curriculum for students aged 1 to 18.

Curriculum
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.

Student Teacher Ratio
Small class sizes.

Exam Results
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).

Higher Education Progression
Base students are admitted to leading universities worldwide. Common fields of study include Engineering, Sciences, Economics, International Relations, Law, and creative disciplines.

Gifted and Talented
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.
Wellbeing

Social and Emotional Learning (SEL)
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.

Special Educational Needs (SEN)
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.

English as an Additional Language (EAL)
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.

Mental Wellbeing
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.

Safeguarding
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.
Parent Experience

Community
Base International School offers a welcoming, family-like atmosphere with an international curriculum that fosters critical thinking and global awareness. The student-centered approach promotes multicultural interaction, creating a global community that supports social and personal development. Each educational stage has its own building and dedicated outdoor space, and the campus includes bright classrooms, a theatre, extensive sports facilities, a library, and an on-site dining hall to support daily life on campus. Extracurricular activities, including robotics and programming in English, extend learning beyond the classroom.

Parent Teacher Association (PTA)
Parent Support Programme is organized through the school's Foundation, offering talks and workshops with experts on emotional education, communication with children, and safeguarding. It provides a space to support families as well.
Facilities

Facilities Overview
Each educational stage has its own building and dedicated outdoor area, designed for the needs of its students. The campus is located in La Moraleja, Alcobendas, a green and peaceful area far from the noise and congestion of the city. From the moment you arrive, you can feel the fresh air, the open spaces, and an environment that is safe, spacious, and full of natural light. The facilities include bright classrooms, small class sizes, extensive sports facilities with multiple courts, a swimming pool, a theatre, art rooms, a radio studio, our own dining hall with an in-house kitchen, and a dedicated work area for families. Everything is designed so that students, teachers, and parents feel part of an open and active community.

Sports Facilities
Extensive sports facilities with multiple courts. A swimming pool is available for aquatic activities. The campus supports a wide range of physical education and sports programs with well-equipped spaces for practice and competition.

Academic Facilities
Bright classrooms and small class sizes. Specialist spaces include a theatre, art rooms, and a radio studio. The campus also features an on-site dining hall with an in-house kitchen and a dedicated work area for families to engage with learning.

Extra Curricular Facilities
Swimming, football, advanced football training, judo, rhythmic gymnastics, athletics, basketball, volleyball, skating, modern dance, art, theatre, choir, music initiation, cooking, chess, and robotics and programming in English.
Extra-Curricular Activities

Academic & Intellectual
Base International School offers a wide range of extracurricular activities—educational, cultural, and sporting—designed to support the integral development of students. Activities include Robotics (Preschool and Nursery) and Robotics in English for Primary, as well as Chess, Theatre in English, Music & Choir, and a variety of sports. Activities take place during lunch or after school from 17:00 to 18:20 and are supervised by qualified professionals.

Arts & Creative
Arts offerings include Ballet – Flamenco, Ceramics, Art, Modern Dance, Music Initiation, and Music & Choir. Theatre in English is available for Primary and Secondary students, providing drama opportunities. The arts program provides opportunities for performance and creative expression through music and theatre.

Cultural & Language
Linguistic diversity is valued, with promotion of learning of different languages and cultures. Students master English and gain proficiency in French or German. Multilingualism is supported across the curriculum.

Social & Hobbies
Base offers a broad range of recreational activities, including Theatre in English, Football Skills Training, Magic, Volleyball, Athletics, Robotics in English, Music & Choir, Basketball, and Chess. Ballet – Flamenco, Ceramics, and Art also form part of creative and leisure programming.

Community & Service
Civic engagement is encouraged through participation in social projects. The school emphasizes a global outlook and provides international experiences such as Stays Abroad. Students can engage in social projects as part of their development.

Leadership & Professional
An entrepreneurship program helps students develop business skills and an entrepreneurial mindset. The school promotes student leadership by fostering creativity, confidence, international awareness, and critical thinking.

Lifestyle & Wellbeing
The school supports adolescents' physical and emotional health with guidance from educational and psychological professionals. A wide range of sports and physical activities, including Football Skills Training, Athletics, and Rhythmic Gymnastics, complements the wellbeing program. Students participate in Volleyball, Ballet, Judo, and other activities to maintain fitness and wellbeing.
Languages

Language Provision
Base International School is a private international school in Madrid, located in La Moraleja, Alcobendas. The educational offering spans from age one through to university, covering Nursery and Preschool (ages 1 to 6), Primary School, Secondary School (Spanish ESO), and High School through either the Spanish Bachillerato or the International Baccalaureate via the IB Diploma Programme. Each educational stage has its own building and outdoor area on a single campus, and campus tours are available in English or Spanish.
Admissions

Admissions
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.
School Events
The school has not added events
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