In short: SEK International School El Castillo is a private, secular, co-ed international school in Madrid, Spain. It offers the IB. Stages: nursery, preschool, primary, middle school and high school (ages 2–18). Taught in Spanish and English. 1,000 students, 30% international. Families rate it 4.0 out of 5 (1 review).
- Type
- Private · Secular · Co-ed
- Ages
- 2–18 · Nursery to high school
- Students
- 1,000 · 120 teachers · 30% international
- Curricula
- IB
- Languages
- Spanish, English + 2
-
Top International Schools 2026 -
IB World School PYP · MYP
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Fees
Fees on request
The school shares its fees, enrolment and extras on request.
Curriculum & results
Stages · ages 2–18
Approach · Academic Excellence & High Performance
SEK International Schools employ their own exclusive Future Learning Model, based on the Intelligent Classroom, a learning method whose key objective is to develop intelligence and instil values in each of its students.
The SEK Future Learning Model:
- Drives flexible, personalised and collaborative learning, with methodologies and tools adapted to physical and virtual environments.
- Encourages critical thinking, real problem solving and entrepreneurship and caters to the current and future needs of students.
- Allows students to actively take part in their own learning process.
The International Baccalaureate® (IB) Programme learner profile describes a broad range of human capacities and responsibilities that go beyond academic success.
They imply a commitment to help all members of the school community learn to respect themselves, others and the world around them.
Each of the IB®'s programmes is committed to the development of students according to the IB learner profile.
The profile aims to develop learners who are:
- Inquirers
- Knowledgeable
- Thinkers
- Communicators
- Principled
- Open-minded
- Caring
- Risk-takers
- Balanced
- Reflective
Students at International Baccalaureate® (IB) World Schools are given a unique education as the International Baccalaureate Organisation (IBO) states in their website. The students will:
- be encouraged to think independently and drive their own learning
- take part in programmes of education that can lead them to some of the highest-ranking universities around the world
- become more culturally aware, through the development of a second language
- be able to engage with people in an increasingly globalised, rapidly changing world.
Languages
Admissions open
Now accepting applications for 2026/27
Ages 2–18
Programmes & accreditations
Open Days
Latest news from SEK International School El Castillo
Location
Urb, Calle Castillo de Manzanares, s / n, 28692 Villafranca del Castillo, Madrid, Spain
Facilities & services
Facilities
The learning spaces are flexible, they make it possible for students and teachers to work as teams and include all necessary resources.
The school is located in an environment with extensive green and sports areas, on a campus of 40,000m².
It comprises:
- Separate buildings for each educational stage, with communicating walkways.
- A campus that acts as a meeting place for our students.
Every learning space has its own facilities and equipment.
Services
The SEK-El Castillo Meals Service has gained EN-ISO 9002:1994 certification and ISO 9001:2000 and FQM Environmental Quality certification. With kitchen and self-catering, where the special dietary needs of our students are catered for. Menus published each term with daily dinner recommendations and nutritional analysis.
It is a mandatory service for all students at the school.
The dining areas offer menus adapted for students with allergies, sufferers of coeliac disease, students with food intolerances or other exceptional needs.
Teachers from the school supervise the service to reinforce the acquisition of good nutritional habits and table manners.
Boarding
Living in the SEK-El Castillo International School Residence is a life-changing experience for students. The day begins at 08:15, with breakfast, and enough time to get ready before attending classes, which take place over the usual academic timetable. From 17:30 though, the residence becomes a truly remarkable place:
After tea, students can explore their interests and pursue their passions. The whole school campus is at your service: from the elite-level sports facilities, to the academic and leisure areas, within an enormous open air campus.
The weekends are a chance to participate in unique activities in the incredible city of Madrid and everyone, every day of the year, can soak up the relaxed, open, and positive atmosphere, where students from different countries share their cultures, languages and concerns.
At the SEK-El Castillo International School Residence, lifelong friendships are made, and memories are forged that our students will treasure throughout their lives.
SEK-El Castillo boarders feel completely at home, living an unforgettable and enriching experience, which encourages their self-reliance and allows them to reach their maximum academic potential and, more importantly, a personal development that will turn them into citizens the world.
The main linchpins of our educational approach are cultural exchange, recognition of diversity and mutual acceptance and respect.
SEK-El Castillo is a member of the Boarding Schools' Association (BSA). This international association represents and accredits, through a rigorous evaluation process, international boarding schools that meet its demanding quality standards in terms of infrastructure and facilities, services, staff, security and well-being of boarders
After-school activities
The school offers its students a wide range of extracurricular activities, providing them with the opportunity to enrich their education from academic, cultural, artistic, and athletic perspectives.
Learning platforms
Reviews
4.0 · 1 review
I studied all of that and high school, the truth is that it is a great school, the food is good, the teachers are wonderful, although like everywhere there are some that are better than others... the facilities seem great to me and the personal treatment along with the international and open-minded approach make this school and this institution a great option to educate the future!!
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FAQ
Which curriculum does SEK International School El Castillo follow?
International Baccalaureate.
What language is SEK International School El Castillo taught in?
Lessons are taught in Spanish and English. It also teaches French and German.
What do families say about SEK International School El Castillo?
Families rate it 4.0 out of 5 based on 1 review.
How do I contact SEK International School El Castillo?
Press Enquire, or use its direct channels on this page. Admissions replies to you directly.


