Est. 1973

International School

Sek International School Santa Isabel

Sek International School Santa Isabel

Madrid, Spain

Last updated: Jun 22, 2026

SEK International School Santa Isabel is a private bilingual (English/Spanish) IB World School for ages 3–12, located in the heart of Madrid's Barrio de las Letras. It is the only school in Madrid's city center offering the IB Primary Years Programme. The school's inquiry-based SEK Future Learning Model and 'Learning Paths' leverage the surrounding museums, parks and cultural landmarks to enrich learning. With students from over 30 nationalities, SEK Santa Isabel fosters creativity, curiosity and an international perspective in a vibrant multicultural community.

Students
~324
Nationalities
30+
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Overview

Sek International School Santa Isabel is an international school in Madrid, Spain. Founded in 1973, it has approximately 324 students from 30+ nationalities. The language of instruction is English and Spanish.

At a Glance

1

Small multicultural primary — 324 pupils from 30+ nationalities in the heart of Madrid's literary quarter (ages 3–12 only)

2

Year-round rolling admissions with limited places — interview and entrance assessment required via SEK's MySEK platform

3

Approximately €8,400+ annually (€700+ per month) — scholarships available through SEK Education Group (excellence, sports merit)

4

Best for families seeking inquiry-based learning in central Madrid who value city museums and parks as outdoor classrooms (founded 1973)

Tuition & Fees

Scholarships & Financial Aid

5

Becas de Excelencia SEK

Merit-Based
Eligibility: High academic achievement; awarded to IB Diploma students across SEK's seven authorised IB Diploma centres.

Becas SEK Rendimiento Deportivo

Sports
Eligibility: Competitive athletes with high-level sports performance and satisfactory academic results.

Becas SEK Proyección Deportiva

Sports
Eligibility: Top junior athletes with outstanding sports results and academic performance.

Beca María de Villota al Esfuerzo

Special
Eligibility: Student at SEK Ciudalcampo demonstrating exceptional effort and perseverance.

Premio Felipe Segovia al Alumno SEK

Merit-Based
Eligibility: Outstanding IB Diploma students across SEK's seven authorised IB centres.

Curriculum & Academics

Languages of Instruction

Languages of Instruction

EnglishSpanish

Compulsory / Optional

FrenchGermanChineseEnglish

Subjects Offered

5 subjects

IB Primary Years(5)

STEM
Mathematics
Languages
English LanguageGerman
Physical Education
Physical Education
IT & Computing
Data Science

Accreditations & Memberships

1 accreditation
NE
NEASC
School AccreditationInternational

Admissions

Admissions Overview

Admissions are rolling year-round with limited places. Families submit an online inquiry via the MySEK system, schedule a campus visit, then complete an interview and entrance assessment. Required documents include IDs, birth certificate, and recent school reports.

Requirements

Early Years (Infantil, ages 3–5), Primary (Primaria, ages 6–12)

English TestStudent InterviewParent InterviewSchool Report Review

English Requirement: Advanced English

Interview Required (In-person)

Schoozy Insight: Admissions at SEK Santa Isabel: Rolling Intake, Limited Places, High Demand

School Life

Uniform
Required
Lunch
Hot lunch provided on campus via catering service

Support & Wellbeing

Co-curricular Activities

18 activities

Team Sports(4)

BasketballFootballVolleyballHandball

Individual Sports(3)

TennisTaekwondoSwimming

Grades: Primary

Drama & Theatre(1)

Musical Theatre

STEM(1)

Robotics Club

Languages & Culture(1)

French Language Club

Grades: Primary

School-specific(8)

Dance ClubChess ClubArts and Plastic Art (Painting and Drawing)British Council English EnrichmentMusic (Instrumental Lessons and Choir)Frontón (Pelota)Roller SkatingTechnology and Computing Club

Grades: Early Years · Primary

Facilities

22 facilities

Sports & Athletics(4)

Indoor Swimming Pool· Indoor
Volleyball Courts· Outdoor
Tennis Courts· Outdoor
Gymnasium· Indoor

Academic Facilities(2)

Robotics Lab· Indoor
Main Library· Indoor

Arts & Performance(2)

Art Studio· Indoor
Music Room· Indoor

Technology(1)

Maker Space· Indoor

Outdoor Spaces(1)

Outdoor Basketball Court· Outdoor

School-specific(12)

Science Laboratories (Physics, Chemistry, Biology)
School Radio Broadcasting Studio
Conference Hall / Auditorium
Outdoor Play Patios
Rooftop Playground with Rock-Climbing Wall
Equestrian Facilities
Frontón Court
UCJC Sports Club (Partner Facility)
Multi-Sport Indoor Hall
Multi-Use Activity Rooms
Handball Court
Multimedia Laboratory

Location & Access

Getting There

Antón Martín (Metro Line 1)

SEK International School Santa Isabel

7 min walk

School Bus

The school operates four dedicated bus routes across Madrid, managed by school staff as route supervisors. Morning and afternoon services available for enrolled students.

Coverage Areas: Various areas across Madrid

Campuses

Main Campus

SEK International School Santa Isabel

Calle San Ildefonso, 18, 28012 Madrid, Spain

7 min walk from Antón Martín (Metro Line 1)
Located in the Barrio de las Letras, central Madrid. Nearest metro: Antón Martín (Line L1), approx. 7 min walk. Atocha rail station approx. 2 km. The school operates four dedicated school bus routes across Madrid. Barajas Airport is approximately 20 km / 30 min by car.
1,000m² indoor multi-sport hall; heated indoor swimming pool; outdoor beach volleyball, tennis, basketball, handball and frontón courts; rooftop playground with rock-climbing wall; STEAM/makerspace; science labs (physics, chemistry, biology); robotics lab; art studios; music rooms; library/media centre; multimedia lab; conference/auditorium hall; school radio broadcasting studio; four multi-use activity rooms; gym/fitness room; outdoor patios. Access to UCJC Sports Club (140,000m²) including equestrian facilities.
+34 900 87 87 98
Schoozy Insight: City as Campus: Learning Without Walls at SEK Santa Isabel

Schoozy Insights

Independent analysis by the Schoozy editorial team. Not affiliated with or endorsed by the school.

The SEK Future Learning Model: Inquiry at the Heart of Every Lesson

SEK Santa Isabel's pedagogy fuses IB PYP inquiry with Harvard Project Zero thinking routines, using Madrid's museums and parks as living classrooms.

Read More

A Unique Pedagogical Partnership

At SEK International School Santa Isabel, education is far more than textbooks and tests. The school has developed the SEK Future Learning Model, a student-centered, inquiry-based pedagogical framework created in collaboration with Harvard University's Project Zero — one of the world's foremost educational research programmes. This partnership gives the school a distinctive intellectual rigour that is rare among primary international schools in Spain.

The model centres on five core competencies that the school believes are essential for 21st-century learners: inquiry, creativity, critical thinking, digital skills, and an international mindset. Rather than passively receiving information, students are encouraged to question, explore, and construct meaning from their experiences — a philosophy that aligns naturally with the IB Primary Years Programme (PYP), the curriculum framework the school has been authorised to deliver since 2011.

Madrid as a Classroom

What makes SEK Santa Isabel truly distinctive is how it operationalises this inquiry model. Situated in Madrid's Barrio de las Letras, the school sits within walking distance of the Prado Museum, the Reina Sofía Museum, the Thyssen-Bornemisza, the Retiro Park, and countless historic landmarks. Rather than treating these as occasional field trips, the school integrates them into daily learning through its 'Learning Paths' programme — structured outdoor learning experiences that turn the city's cultural triangle into an extension of the classroom.

This approach reflects a sophisticated understanding of place-based education: the idea that authentic learning happens when students engage with real environments, real artefacts, and real community contexts. A science unit might involve observing ecosystems in Retiro Park; an arts unit might involve sketching in the Prado. The city becomes curriculum.

Assessment and Progress

In keeping with PYP philosophy, assessment at SEK Santa Isabel moves away from high-stakes standardised testing and toward portfolio-based, performance-driven evaluation. Teachers document student growth through exhibitions, projects, and ongoing formative tasks. The IB's Primary Years Exhibition (PYX), undertaken in the final year (age 11–12), is the capstone of this approach: a student-led collaborative inquiry project that demonstrates mastery across all subject areas.

Support for Every Learner

The school's learning philosophy explicitly embraces neurodiversity and differentiated learning. Notable programmes include ArrowSmith, a cognitive training programme based on neuroplasticity research, for students with learning differences, and Programa Estrella, a gifted and talented enrichment programme for high-potential learners. This dual commitment ensures that the inquiry model serves all students, not just the academically conventional.

Fifty Years in the Heart of Madrid: The Story of SEK Santa Isabel

Founded in 1973 by Felipe Segovia, SEK Santa Isabel has evolved from a co-ed city campus into Madrid's only IB primary school in the city centre, celebrating 50 years in 2024.

Read More

Origins: A Vision for Central Madrid

In 1973, Felipe Segovia — visionary founder of the SEK Education Group — opened a new school in the heart of Madrid. Named after the historic Calle San Ildefonso neighbourhood where it stands, SEK International School Santa Isabel was conceived as a progressive, co-educational urban campus: the successor to the older SEK-Atocha and San Ildefonso schools that had served Madrid families in earlier decades.

From its earliest days, the school distinguished itself by its urban identity. Unlike many Spanish private schools that sought large suburban plots, SEK Santa Isabel embraced the dense, culturally rich neighbourhood of Las Letras — the literary quarter of Madrid, home to Cervantes, Lope de Vega, and generations of Spain's greatest artists and thinkers. This setting was not incidental; it was integral to the school's educational vision.

Evolution: Becoming a Primary Specialist

For its first two-and-a-half decades, SEK Santa Isabel served students across all age groups, from infants through secondary. However, in 1999, the school underwent a significant strategic repositioning. Secondary-age students were relocated to other SEK campuses, and Santa Isabel refocused exclusively on Infantil and Primaria — early childhood and primary education, serving children aged 3 to 12.

This was a deliberate choice, not a contraction. By concentrating on the youngest learners, the school could develop deeper expertise in early childhood pedagogy, invest more heavily in age-appropriate facilities, and cultivate a community culture tailored to the specific developmental needs of young children.

IB Authorisation and International Recognition

In June 2011, SEK Santa Isabel achieved a landmark milestone: authorisation as an IB World School for the Primary Years Programme. This placed it in a select group of schools worldwide recognised by the International Baccalaureate Organisation for their commitment to inquiry-based, internationally-minded education — and made it the only IB primary school in Madrid's city centre.

Over the following decade, the school built a strong reputation in Madrid's competitive international school market, attracting families from over 30 nationalities and earning recognition from national media rankings and educational bodies.

The 50th Anniversary: A Celebration of Community

In 2024, SEK Santa Isabel marked its 50th anniversary with a gala performance at the historic Teatro Calderón in Madrid. The event brought together students, staff, alumni families, and SEK Group leadership to celebrate five decades of educational innovation. The occasion was also a moment to affirm the school's ongoing commitment to its founding values: progressive, inclusive, internationally-minded education in the heart of Spain's capital.

City as Campus: Learning Without Walls at SEK Santa Isabel

SEK Santa Isabel's urban campus blends exceptional on-site facilities — including a heated pool, 1,000m² sports hall, STEAM lab and radio studio — with Madrid's world-class cultural district as its outdoor classroom.

Read More

An Urban Campus Redefined

For many families considering international schools, the image of spacious green playing fields and purpose-built suburban campuses is the default expectation. SEK International School Santa Isabel offers something quite different — and, arguably, more enriching: a compact, vibrant urban campus embedded within one of Europe's great capital cities.

Located at Calle San Ildefonso 18 in Madrid's Barrio de las Letras, the school makes its setting a pedagogical asset. Within a short walk lie the Prado Museum, the Reina Sofía, the Thyssen-Bornemisza, and the Retiro Park — collectively forming what the school calls its 'cultural triangle'. These spaces are not visited occasionally; they are woven into the daily curriculum through the school's Learning Paths programme.

On-Site Facilities: Surprising Breadth

Despite its central urban location, SEK Santa Isabel has invested heavily in on-site facilities that would be impressive for any campus, suburban or otherwise:

  • 1,000 m² Multi-Sport Indoor Hall: Configured for tennis, basketball, futsal, and frontón (traditional Basque wall ball), this is a substantial sports venue by any measure.
  • Four Multi-Use Activity Rooms: Dedicated spaces for dance, taekwondo, psychomotricity, drama, and skating.
  • Indoor Heated Swimming Pool: A rare asset for a city-centre primary school, enabling year-round swimming instruction.
  • Outdoor Sand Beach Volleyball Court, Tennis Courts, Basketball Courts, Handball Court, and a Frontón — all within or adjacent to the campus.
  • Rooftop Playground with Rock-Climbing Wall: The school's rooftop terrace transforms into an adventure play space with views over Madrid.
  • STEAM/Makerspace: Equipped with robotics kits and 3D printers for hands-on technology learning.
  • Science Laboratories: Physics, chemistry, and biology labs for upper primary students.
  • Robotics Lab, Art Studios, Music Rooms, Library/Media Centre, Multimedia Lab, Conference Hall/Auditorium, and a School Radio Broadcasting Studio — providing exceptional breadth for a primary school.

Extended Facilities via UCJC Partnership

For even broader access to sports and outdoor activities, SEK Santa Isabel students have access to the UCJC Sports Club — a 140,000 m² sports complex that includes equestrian facilities, padel courts, golf, and more. This partnership significantly extends the school's effective campus well beyond its physical footprint.

The Feel of the Place

The atmosphere at SEK Santa Isabel is shaped by its urban energy and cultural richness. Children arrive each morning to a school embedded in one of Madrid's most historically significant neighbourhoods — surrounded by cafés, bookshops, plazas, and centuries of history. This context gives the school a cosmopolitan, outward-looking character that is deeply consistent with its IB mission of developing internationally-minded young citizens.

A Multilingual, Multinational Community in Madrid's Cultural Heart

With 30+ nationalities among 324 students aged 3–12, SEK Santa Isabel cultivates genuine multiculturalism through bilingual instruction, multiple foreign languages, and a globally-minded IB curriculum.

Read More

A Truly International Community

SEK International School Santa Isabel is one of Madrid's most culturally diverse primary schools. With approximately 324 students drawn from more than 30 nationalities, the school's community reflects the cosmopolitan character of Spain's capital city. This diversity is not merely demographic — it is pedagogically intentional and deeply embedded in how the school operates.

The student body spans ages 3 to 12, covering the full span of early childhood and primary education. Families include long-term expatriates, diplomats, international business professionals, and Spanish families seeking a genuinely bilingual and internationally-framed education for their children.

Bilingual at the Core

The school's linguistic architecture is genuinely bilingual. English and Spanish are both languages of instruction, used across subject areas throughout the school day. This is not a model where one language is 'main' and the other is a supplement — rather, both languages carry significant academic weight, preparing students to function confidently in either linguistic environment.

Beyond the bilingual core, the school offers French, German, and Mandarin Chinese as additional language options. This multilingual offering is unusual for a primary school of this size and reflects the school's commitment to developing genuine linguistic breadth in its youngest learners.

The British Council Connection

The school's English language programme is strengthened through a partnership with the British Council, which provides phonics and English enrichment activities from the early years. This external validation of English language quality gives additional assurance to families for whom English proficiency is a primary consideration.

Support for All Learners

The school provides EAL (English as an Additional Language) support for non-native English speakers, ensuring that students arriving with limited English can be successfully integrated into the bilingual curriculum. Similarly, Spanish language support is available for students from non-Spanish-speaking families.

The school's Departamento de Orientación (Student Support Department) provides broader pastoral and academic guidance, while the ArrowSmith cognitive training programme and Programa Estrella (gifted education) ensure that the full spectrum of learning needs and potentials is addressed.

Community Culture

The school describes its aspiration as building 'an inclusive, internationally-minded educational community' — and the evidence suggests this is more than a mission statement. The daily reality of navigating multiple languages, multiple cultural frameworks, and multiple ways of knowing creates a genuinely intercultural environment that prepares students for a globally connected world.

Admissions at SEK Santa Isabel: Rolling Intake, Limited Places, High Demand

SEK Santa Isabel accepts applications year-round through its MySEK digital platform, but limited enrolment capacity makes early enquiry advisable for families seeking a place.

Read More

A Year-Round Rolling Process

Unlike many schools that operate a single annual admissions cycle with fixed deadlines, SEK International School Santa Isabel accepts applications on a rolling, year-round basis. This flexibility is particularly valuable for families relocating to Madrid mid-year — a common situation for the expatriate and internationally mobile families that form a significant part of the school's community.

However, the school is explicit that places are limited ('plazas limitadas'), and this caveat is important. The school's enrolment of approximately 324 students across nine year groups (ages 3–12) means that space in any given year group may be restricted, particularly in the popular primary years.

The MySEK Admissions System

All admissions are managed through the school's proprietary MySEK digital platform. The process proceeds in stages:

  1. Initial Enquiry: Families submit an online information request, expressing interest in a specific year group and providing basic background information.
  2. Campus Visit: Prospective families are invited to visit the school, meet staff, and see the learning environment in action.
  3. Assessment: Applicants complete an entrance assessment that tests age-appropriate competencies in both English and Spanish, aligned with the bilingual curriculum.
  4. Interview: Both students and parents participate in an interview process, allowing the school to understand the family's educational values and assess fit with the SEK community.
  5. Document Submission: Required documentation includes identification documents, birth certificate, and recent school reports.

What Schools Look For

While no formal acceptance rate is published, the admissions process signals that SEK Santa Isabel is selective in a holistic rather than purely academic sense. The school seeks students and families who are aligned with its values of inquiry, international-mindedness, and community. The bilingual curriculum requires that students have some baseline capacity in English (or a realistic pathway to developing it), and the school provides EAL support for those still developing proficiency.

Practical Advice for Families

Given the limited places and the school's growing reputation — reflected in its ranking as the 6th best school in Spain by El Español in 2026 — families are advised to initiate the enquiry process as early as possible. The MySEK system can be accessed directly from the school's website, and the admissions team is responsive to initial enquiries throughout the academic year.

About the School

Established
1973

Mission

Build an inclusive, internationally-minded educational community with a clear focus on continuous growth and a lifelong passion for learning.

Educational philosophy

SEK's educational philosophy places students at the center of learning. The SEK Future Learning Model emphasizes inquiry, creativity, critical thinking, digital skills and an international mindset, developed in partnership with Harvard's Project Zero. The school aims to build an inclusive, internationally-minded community with a lifelong passion for learning.

Core values

Respect, Responsibility, Creativity, Solidarity, Wisdom, Discipline, Honesty, Freedom with Responsibility, Spirit of Inquiry

History

SEK Santa Isabel opened in 1973, founded by Felipe Segovia as a downtown Madrid successor to the earlier SEK-Atocha and San Ildefonso schools. It was the first co-educational SEK campus. In 1999, the school refocused as an Infant/Primary (ages 3–12) centre, relocating secondary pupils to other SEK campuses. The school achieved IB World School authorization for the PYP in 2011 and celebrated its 50th anniversary in 2024 with a gala performance at the Teatro Calderón.

Frequently Asked Questions

What are the admission requirements for Sek International School Santa Isabel?

Admissions are rolling year-round with limited places. Families submit an online inquiry via the MySEK system, schedule a campus visit, then complete an interview and entrance assessment. Required documents include IDs, birth certificate, and recent school reports.

Where is Sek International School Santa Isabel located?

Sek International School Santa Isabel is located in Madrid, Spain.

How many students attend Sek International School Santa Isabel?

Sek International School Santa Isabel has approximately 324 students from 30+ nationalities.

Does Sek International School Santa Isabel have a school bus?

Yes, Sek International School Santa Isabel offers a school bus service with 4 routes. The school operates four dedicated bus routes across Madrid, managed by school staff as route supervisors. Morning and afternoon services available for enrolled students.

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About this data

Last updated: Jun 22, 2026

Sources: the school's official website, accreditation bodies (e.g. IBO, CIS), and public records.