Saint Mary's International School

Origins in Post-War Tokyo

St. Mary's International School was established in 1954 by the Brothers of Christian Instruction, a French-origin Catholic teaching congregation with a global educational mission. The founding context was post-occupation Japan, when the international community in Tokyo — diplomats, businesspeople, missionaries — needed English-medium schooling for their sons. The school filled that gap by offering a rigorous, values-grounded curriculum in a city with few alternatives.

The Move to Setagaya (1971)

The school's early years were spent at a different location before the decisive move to its current address at 1-6-19 Seta, Setagaya-ku in 1971. Setagaya, a leafy residential ward in southwest Tokyo, provided the space needed for a full K–12 campus with sports and performing arts facilities. The ward remains home to a significant proportion of Tokyo's expatriate community, making the location strategically apt.

Campus Renewal (2009)

The most transformative moment in the school's recent history was the completion of its entirely new campus in 2009. The rebuild replaced aging structures with a modern facility purpose-built for 21st-century international education. Key additions included a 25-metre indoor swimming pool with gymnasium, a dedicated theatre, tennis courts, a soccer/rugby field, a cafeteria, and a solar-panel installation reflecting contemporary environmental values. This investment positioned the school physically among the best-equipped international schools in Japan.

Growth to 47 Nationalities

Over seven decades, the student body has grown from a small community of primarily Western expatriate boys to a genuinely multicultural cohort of approximately 1,000 students representing around 47 nationalities. The school became an IB World School authorised to offer the Diploma Programme as early as 1 September 1979, making it one of the earliest IB schools in Japan. Today it holds accreditations from CIS, WASC, ACSI, NEASC, Cognia, and COBIS — a breadth of international recognition that underscores its standing.

The All-Boys Difference

In a Tokyo international school landscape dominated by co-educational institutions, St. Mary's stands apart as the only major international boys' school. This single-sex environment shapes everything from classroom dynamics to social culture. Research consistently shows that boys in all-male educational settings tend to engage more readily in academic discussion, performing arts, and non-stereotypically 'masculine' activities such as music and drama — precisely because there is no social pressure related to mixed-gender peer perception.

Athletics as a Cornerstone

The school operates more than 30 sports teams across a wide range of disciplines, including soccer, rugby, basketball, volleyball, baseball, tennis, swimming, skiing, and track and field. The 2009 campus provides world-class facilities for these programmes: a 25-metre indoor swimming pool (with gymnasium), tennis courts, and a full-size soccer and rugby field. Athletics is not merely an extracurricular add-on — the school explicitly states that it builds teamwork, commitment, and school pride through competitive sport.

A Modern Campus with Catholic Character

The campus itself, entirely rebuilt in 2009, blends modern infrastructure with the school's Catholic identity. The theatre hosts dramatic productions and school ceremonies; the cafeteria is a gathering point for community life; solar panels on the roof signal environmental stewardship. The Setagaya location — 11 minutes' walk from both Futako-Tamagawa and Kaminoge stations — places the school in one of Tokyo's most pleasant residential areas, away from the density and noise of central Tokyo.

Brotherhood and Alumni

The 'brotherhood' aspect of the school — a term used loosely but meaningfully among St. Mary's alumni — reflects the deep bonds formed in an environment where boys grow together from Kindergarten through Grade 12. Alumni involvement in school life, while not extensively documented publicly, is characteristic of schools with strong single-sex identities. The relatively small total enrollment of approximately 1,000 students across 13 year levels means individual students are known and seen in a way that larger institutions rarely achieve.

A Mission Rooted in Catholic Humanism

St. Mary's International School occupies a unique position among Tokyo's international schools: it is explicitly and unapologetically a Catholic boys' institution, and this identity pervades every layer of school life. The school's guiding statement declares that "personal development, characterized by empathy and trust, will engender beliefs and actions conducive to global citizenship for the betterment of humanity through promoting peace, justice, freedom and truth." This is not merely an aspirational motto — it shapes curriculum design, pastoral care, and community expectations.

Understanding by Design

Academically, the school structures its K–12 curriculum using the Understanding by Design (UbD) framework, a standards-based approach that asks teachers to begin with the desired learning outcomes and design backward toward instruction. This means students are evaluated not simply on content recall but on genuine understanding of transferable concepts. The approach aligns naturally with the IB Diploma Programme, which dominates the school's upper years.

Values-Based Holistic Education

The six core values — Respect, Responsibility, Integrity, Courage, Compassion, and Harmony — are embedded in everything from classroom expectations to athletics. The school's Catholic heritage, brought by the Brothers of Christian Instruction who founded it in 1954, means that moral formation is treated as co-equal with academic achievement. Students are expected to develop the kind of character that translates into civic and community contribution beyond the school gates.

Implications for Families

For families considering St. Mary's, this philosophy has practical implications. The school does not admit students who cannot function in an all-English academic environment — there is no ESL remediation track above Grade 8 — which means the community is intellectually self-selecting. At the same time, the Catholic ethos is inclusive in terms of nationality and religion; the school explicitly welcomes students without regard to race, creed, or national origin. The result is a community where shared values, rather than shared faith, form the binding force.

A Transparent but Demanding Gateway

St. Mary's admissions philosophy is open in terms of nationality and background but demanding in terms of academic and linguistic readiness. The school accepts boys only, and the process involves submission of academic transcripts, a standardised screening test (covering English and Mathematics), and a personal interview attended by both the student and parents.

The English Prerequisite

The single most defining feature of St. Mary's admissions is its English requirement. Unlike many Tokyo international schools that offer ESL or EAL bridge programs for the full K–12 range, St. Mary's English Language Development (ELD) programme exists only for students in Reception Preparatory (RP) through Grade 8. By Grade 9 and into the IB Diploma years, students are expected to operate entirely in academic English without additional support. This means that families whose children are not already schooled in English — or who have significant language gaps — will find admission effectively closed to them. The school's position is clear: it does not provide an English-learning pathway; it provides an English-language education.

Screening and Interview

The admissions process involves both written assessment and human judgment. The screening test evaluates foundational academic skills; the interview allows the school to assess character, motivation, and family alignment with the school's Catholic values. Importantly, the school states it does not discriminate on the basis of race, creed, or national origin, meaning that non-Catholic and non-Christian families are welcomed provided they respect and engage with the school's ethos.

Practical Implications

Given the absence of a published acceptance rate, the true selectivity is difficult to quantify. However, the combination of the English requirement, the written test, and the interview makes St. Mary's functionally more selective than schools with open enrollment. Families planning well ahead — especially returnee families or those transitioning from English-medium schools abroad — will find the transition smoother. The ¥400,000 enrollment fee and ¥200,000 re-enrollment deposit are also notable upfront costs beyond tuition.

The IB Diploma as Culmination

St. Mary's academic journey is designed with the IB Diploma Programme as its capstone. The school was authorised to offer the IB DP in September 1979 — one of the earliest in Japan — and the programme has since become central to the school's identity and reputation. While participation in the full IB Diploma is not compulsory (a non-diploma IB course option is available for those who wish to study IB subjects without pursuing the full diploma), the IB DP is treated as the expected destination for academically prepared students.

Pass Rate Performance

Available third-party data suggests that St. Mary's IB DP pass rate has hovered around 90% over the past three years. This figure is notably above the IB global average (which has historically sat around 78–82%), indicating a strong performance culture within the school. Precise yearly averages and subject-level breakdowns are not publicly released by the school, which limits direct comparison with peer institutions.

University Destinations

The school's own promotional materials note that graduates are accepted at "some of the most prestigious colleges worldwide." While detailed university destination lists are not publicly published, qualitative evidence from alumni accounts and third-party guides confirms that St. Mary's students regularly gain entry to selective universities in the United States, United Kingdom, Canada, and beyond. The combination of the IB credential, strong English proficiency, and a track record of extracurricular achievement (the school runs more than 30 sports teams alone) makes graduates competitive for top-tier institutions.

Standards-Based Classroom Culture

The school's use of Understanding by Design creates a classroom culture oriented around deep understanding rather than surface-level performance. Assessment is aligned to learning outcomes, and students are expected to demonstrate mastery of concepts rather than memorisation. This approach prepares students well for the independent, analytical demands of IB assessments and university-level study alike.

Application Process & Timeline

St. Mary's International School operates two distinct admissions tracks. Grade 1 admissions follow a structured annual cycle, while Grades 2-12 use rolling admissions year-round as space permits.

Grade 1 Entry (Primary Entry Point)

The Grade 1 admissions cycle begins in early September of the year prior to enrollment, with applications due by late October. The process includes:

• Application submission: Early September opening, late October deadline
• Screening assessment: 30-minute iPad-based test (MAP format) covering math concepts and English listening in early November
• Group observation: Mid-November activity assessing cooperation and social skills
• Parent-child interview: Early December meeting focusing on family educational philosophy and alignment with school mission
• Admission decisions: Notifications sent by late January

Important restriction: For the 2025-26 academic year, applications for Readiness Program (kindergarten) and Grade 1 were closed to local Japan-resident applicants, accepting only overseas residents. This indicates high demand and limited capacity at entry levels.

Rolling Admissions (Grades 2-12)

Transfer students may apply throughout the year as seats become available. The evaluation includes:

• MAP-style assessments in math and English reading
• English essay writing
• Student interview (and parent interview for younger grades)
• Review of previous two years' transcripts and standardized test scores

Required Documentation

All applicants must submit through the OpenApply portal:

Universal Requirements

• Completed application form and Confidential Information Form
• Birth certificate or passport copy
• Recent family photograph
• Last two years of school records
• Current report card
• Record Release authorization
• ¥50,000 non-refundable application fee

Grade-Specific Requirements

Readiness Program & Grade 1:

• Kindergarten teacher recommendation

Grades 2-5:

• Elementary teacher recommendation
• Counselor or principal reference

Grades 6-8:

• English teacher recommendation
• Math teacher recommendation
• Counselor or principal reference

Grades 9-12:

• Official transcripts with school profile
• Standardized test scores (MAP, SSAT, PSAT, or equivalent)
• Counselor or principal reference
• Math teacher recommendation

Selection Criteria & Competitiveness

St. Mary's evaluates candidates holistically, weighing multiple factors:

Academic Readiness

Applicants must demonstrate the potential to succeed in an English-based, college-preparatory curriculum. The school specifically states that students should show capability for grade-level work in an English-medium environment.

English Language Proficiency

English proficiency is critical and varies by entry point:

• Elementary grades (RP-8): English as an Additional Language (EAL) support available for developing speakers
• High school (Grades 9-12): Near-native English proficiency required. No EAL support offered in Grades 11-12, making English mastery essential for admission to upper grades

Values Alignment

While St. Mary's welcomes boys of all faiths and does not require Catholicism for admission, families must demonstrate willingness to support the school's mission and Catholic-inspired values including respect, responsibility, integrity, courage, compassion, and harmony. The parent-child interview assesses this philosophical alignment.

Non-Discriminatory Policy

The school maintains a non-discriminatory admissions policy regarding race, creed, or national origin. With students from approximately 47 countries, diversity is central to the community.

Competitiveness

While St. Mary's does not publish acceptance rates, several indicators suggest high selectivity:

• Grade 1 is the most competitive entry point as the largest intake
• The 2025-26 closure to local applicants for early grades indicates oversubscription
• Strong academic profile of enrolled students (IB average of 35-37 points, well above global mean of 30)
• Limited transfer availability in upper grades due to enrollment stability

Assessment Process

Grade 1 Screening

The assessment for youngest applicants is developmentally appropriate:

• Academic screening: iPad-based, MAP-format test evaluating basic math concepts and English listening comprehension
• Group observation: Activities like block play to assess cooperation, social skills, and ability to follow instructions
• Family interview: Combined parent-child meeting to evaluate fit with school community and values

Transfer Student Assessment

Older applicants undergo more rigorous academic evaluation:

• Standardized achievement tests in math and English
• Written essay demonstrating English composition skills
• Individual student interview
• Review of previous academic performance and teacher recommendations

Decision Process & Policies

The school administration makes final admission decisions based on academic readiness, English proficiency, available space, and alignment with school mission. Key policies include:

• No appeals process: Admission decisions are final
• No re-testing: Assessment results are not released, and retakes are not offered
• No published waitlist: While the school may maintain internal waitlists, no formal waitlist process is advertised
• Residency requirement: Students must reside in Japan with parents holding valid visas; independent living requires prior approval

Interview Experience

Interviews play a significant role in the admissions process:

Early Grades

The parent-child interview for Grade 1 applicants is a key differentiator. The school assesses:

• Family educational philosophy and goals
• Understanding of and commitment to St. Mary's mission
• Parental involvement expectations
• Child's readiness for structured learning environment

Upper Grades

Student interviews for transfer applicants focus on:

• Academic interests and goals
• English communication skills
• Reasons for choosing St. Mary's
• Extracurricular interests and leadership experiences

Ideal Candidate Profile

The most successful applicants typically demonstrate:

• Strong English foundation or high motivation to achieve fluency quickly (for younger students)
• Academic excellence with consistent performance in previous schools
• Social maturity and ability to thrive in an all-boys environment
• Family support for the school's Catholic-inspired values and mission
• Global mindedness and comfort in diverse, international settings
• Interest in structured environment with clear behavioral expectations

Special Considerations

English Language Learners

Families should carefully consider timing of application:

• Strong EAL support through Grade 8 makes elementary/middle school entry viable for non-native speakers
• High school entry requires advanced English proficiency as support diminishes
• Students should achieve near-native fluency before Grade 11 to access full IB Diploma Programme

Students with Learning Differences

St. Mary's explicitly states it operates regular classes only and cannot serve students requiring significant special education support. Learning Support Coordinators assist students not meeting grade-level expectations, but the school expects all students to participate in mainstream curriculum with minimal accommodation.

Alternative Entry Points

While Grade 1 is the primary entry point with highest availability, families may find opportunities:

• Grade 6 (middle school entry) often has openings
• Grade 9 (high school entry) accepts qualified students but requires exceptional English
• Mid-year transfers possible in any grade if space available

Application Strategy

Prospective families should:

1. Apply early for Grade 1: Given the structured timeline and high competition
2. Assess English readiness realistically: Especially for upper grade applications
3. Visit campus: Tours available by appointment provide crucial insight into school culture
4. Prepare for values discussion: Be ready to articulate alignment with Catholic-inspired mission
5. Consider multiple entry points: If Grade 1 is not feasible, middle school entry may offer better odds
6. Ensure residency documentation: Have visa and residency paperwork in order before applying

Academic Performance Overview

St. Mary's International School demonstrates exceptional academic outcomes through its International Baccalaureate Diploma Programme. The school consistently delivers results that significantly exceed global benchmarks, positioning graduates for acceptance at elite universities worldwide.

IB Diploma Results

The school's IB performance stands out among international schools globally:

• Pass Rate: Consistently over 90%, with the Class of 2022 achieving a 100% pass rate
• Average Score: 35-37 points (out of 45), substantially above the world average of approximately 30 points
• Subject Excellence: Particularly strong in STEM subjects, with 2020 HL Physics averaging 6.36 (world average 5.29) and HL Mathematics averaging 6.09 (world average 5.05)

Approximately 90% of seniors take the full IB Diploma exam, with the remainder opting for IB Courses rather than the complete diploma.

Standardized Testing Performance

Beyond the IB curriculum, St. Mary's students demonstrate strong performance on standardized assessments:

SAT Performance:

• Evidence-Based Reading and Writing (ERW): 602 (world average: 528)
• Mathematics: 673 (world average: 523)
• Combined Total: Approximately 1,275 (world average: 1,051)

These scores place St. Mary's students well above international norms, reflecting the school's rigorous college-preparatory curriculum and strong English-language instruction.

University Destinations

Geographic Distribution

Graduates matriculate to universities across five primary regions:

1. United States
2. United Kingdom
3. Canada
4. Australia
5. Japan

Elite University Placements

St. Mary's maintains a strong track record of acceptances to the world's most selective institutions:

Top International Universities:

• Harvard University
• Yale University
• Massachusetts Institute of Technology (MIT)
• Stanford University
• Oxford University

The school demonstrates particular strength in placements to medical programs (especially overseas) and engineering faculties, reflecting both student interest and the school's robust STEM curriculum.

Japanese University Destinations

For students remaining in Japan, St. Mary's graduates frequently attend leading universities' English-language programs:

• Waseda University (School of International Liberal Studies)
• Keio University (PEARL and GIGA programs)
• Sophia University (international programs)
• International Christian University (ICU)

These programs offer English-medium instruction and attract internationally-minded students, making them natural fits for St. Mary's graduates.

University Counseling Program

The school provides comprehensive, multi-year support for university planning:

Grade 10 Foundation

• Students take PSATs for baseline assessment
• Initial guidance on IB course selection aligned with university goals
• Introduction to post-secondary planning process

Grade 11 Intensive Support

• Each student assigned a dedicated university counselor
• Regular family conferences to discuss options and strategy
• Weekly presentations covering various university systems and application processes
• College representative visits to campus
• Focus on researching and shortlisting universities

Grade 12 Application Phase

• Individual counseling sessions throughout application cycle
• Workshops on application essays, interviews, and transitions
• Support for multiple application systems (US Common App, UCAS, Japanese universities)
• Guidance on practical matters of living abroad
• Final transcript and recommendation coordination

Career Development

Beyond university placement, St. Mary's offers career-focused programming:

• Annual Career Day each spring featuring alumni and professionals
• Industry panel discussions across various fields
• Resume and interview skills workshops
• Long-term career planning integrated with university selection

College representatives from universities worldwide regularly visit campus, providing students direct access to admissions officers and up-to-date information about programs.

Factors Contributing to Success

Rigorous Curriculum

The IB Diploma Programme's comprehensive structure prepares students for university-level work:

• Six subject groups ensuring breadth across disciplines
• Theory of Knowledge developing critical thinking
• Extended Essay building research and writing skills
• Creativity, Activity, Service (CAS) fostering well-rounded development

Academic Support Systems

High Academic Standards: The school maintains expectations well above global IB averages, creating a culture of achievement.

English Language Mastery: By requiring near-native English proficiency in upper grades, St. Mary's ensures students can compete academically at English-medium universities worldwide.

STEM Excellence: The school's particularly strong performance in Physics, Mathematics, and Information Technology reflects focused instruction and resources in these areas.

Preparation Beyond Academics

Comprehensive Extracurricular Engagement: With over 100 activities available and participation rates exceeding 90% in high school, students develop leadership skills, teamwork, and diverse interests that strengthen university applications.

Global Perspective: The diverse student body (47+ nationalities) creates a naturally international environment, preparing students for global university settings.

Values Development: The school's Catholic character and emphasis on service, integrity, and responsibility align with the holistic criteria many elite universities seek.

Strategic Advantages

For US University Applications

• Strong SAT performance and IB scores meet competitive benchmarks
• English-medium instruction ensures language readiness
• Comprehensive extracurricular programs provide application material
• Experienced counselors familiar with US admissions processes

For UK Universities

• IB Diploma widely recognized and respected
• Strong subject-level performance, particularly in STEM
• Extended Essay preparation parallels UK dissertation work

For Japanese Universities

• Direct relationships with international programs at top universities
• Understanding of both international and Japanese educational systems
• Location in Tokyo facilitates campus visits and interviews

For Medical and Engineering Programs

• Proven track record in these competitive fields
• Strong science and mathematics preparation
• Research opportunities through Extended Essay and CAS projects

Outcomes Context

While St. Mary's does not publish detailed statistics on acceptance rates or percentage of students attending specific institutions, the available data indicates:

• Essentially 100% of graduates proceed to post-secondary education
• The IB pass rate and average scores position students competitively for selective admissions
• Regular placements at institutions with single-digit acceptance rates demonstrate preparation quality
• Geographic diversity of matriculation reflects the international nature of the student body

Limitations and Considerations

The school does not provide:

• Detailed year-by-year placement statistics
• Numbers or percentages attending specific universities
• Subject-specific placement data (though anecdotal strength in medicine/engineering is noted)
• Comparative data against other Tokyo international schools

Families should note that while outcomes are strong, individual results depend on student performance, university application strategy, and the competitive landscape in any given admissions cycle. The counseling team provides personalized guidance recognizing that university fit matters as much as prestige.

Educational Philosophy & Values

St. Mary's International School operates with a Catholic international ethos that emphasizes educating the "whole boy" through faith, academic excellence, and character development. While Catholic in heritage and affiliated with the Brothers of Christian Instruction, the school welcomes boys of all faiths and does not require Catholicism for admission. All students participate in a K-12 Religion/Ethics program that reflects core values of respect, responsibility, integrity, courage, compassion, and harmony.

The curriculum follows an "Understanding by Design" framework, focusing on inquiry-based learning and mastery. As a mission-driven institution, St. Mary's explicitly expects families and students to support its Catholic-inspired values, though the religious atmosphere accommodates diverse beliefs. Catholic students have access to on-campus Mass and sacraments led by a resident chaplain, while non-Catholic students participate in a general ethics program without religious obligation.

Student Body & Diversity

The school enrolls approximately 1,000 boys representing 47-60 countries, creating one of Tokyo's most internationally diverse student communities. Major nationality groups include students from:

• United States
• Japan
• Canada
• Australia
• United Kingdom
• China
• India
• Korea
• France

This multicultural environment is a defining feature of the St. Mary's experience. The school explicitly celebrates diversity and admits students without regard to race, national origin, or creed. Class sizes average 18 students in Kindergarten and 24-25 in upper grades, fostering close-knit learning communities.

The school maintains an active alumni network that regularly contributes to campus life through mentorship, career panels, and guest speaking engagements, strengthening intergenerational community bonds.

All-Boys Education Approach

St. Mary's specializes in "boy-friendly" education, tailoring its pedagogical approach to how boys learn best. This philosophy manifests through:

• Hands-on, kinesthetic learning activities
• Competitive academic and athletic programs
• Structured yet supportive environment emphasizing discipline
• Leadership development opportunities
• Active, movement-integrated classroom strategies

The school maintains a reputation for high discipline and strong traditions, including formal uniforms and clear behavioral expectations. This structured environment is balanced with opportunities for individual expression through extensive extracurricular programs. The single-sex setting allows boys to develop confidence, leadership skills, and academic focus without gender-related social pressures.

Culture & Daily Life

The school culture blends academic rigor with warmth and support. St. Mary's emphasizes collaboration, resilience, and leadership development within a caring community framework. The administration describes the environment as fostering "compassionate global citizens" who can navigate an increasingly complex world.

Daily life includes:

• Structured academic schedule with inquiry-based instruction
• Regular community gatherings and assemblies
• Participation in service projects and Catholic-inspired social justice initiatives
• Integration of values education across all grade levels
• Advisory programs (particularly in high school) for personal guidance

The school operates as a day school only (no boarding), and students must reside in Japan with their parents holding valid visas. This creates a community of local and expatriate families committed to Tokyo as their base.

Extracurricular Activities & Community Engagement

St. Mary's offers over 100 extracurricular activities, placing it among Tokyo's most comprehensive programs. Participation rates are exceptional:

• 90%+ of high school students engage in fine arts programs
• Two-thirds of middle schoolers participate in co-curriculars
• Every elementary student engages in fine arts activities

The school identifies "academics, the arts, and athletics as the three pillars" of student development.

Music & Performing Arts

The music program is particularly distinguished with 14 musical ensembles, including:

• Award-winning boys' choirs (international competition winners)
• Multiple instrumental groups
• Drama productions
• Annual tri-school Spring Musical collaboration with other Tokyo international schools

Regular performances include Christmas Concerts, Nativity Plays, and Spring Choral Festivals that bring together students, families, and alumni.

Athletics

St. Mary's fields competitive teams across multiple sports with notable achievements:

• Wrestling team: Over 20 Kanto Plain and Far East championships
• Full participation in Kanto Plain Association of Secondary Schools leagues
• Strong programs in weightlifting, debate, and other competitive activities

The athletic program emphasizes both skill development and character building through sportsmanship and teamwork.

Parent & Family Engagement

The school fosters strong family involvement through:

• Regular community events and seasonal celebrations
• Parent-Teacher Organization coordination
• Volunteer opportunities in fundraising and school committees
• Open houses and family conferences
• Service project participation

The school's "Support Us" fundraising initiative indicates an active development office that coordinates alumni and parent giving, though tuition alone does not fully cover operational costs. This suggests families are expected to engage beyond financial obligations through community participation and support.

Student Support Services

St. Mary's provides comprehensive support emphasizing each boy's holistic development:

Academic Support

• Learning Support Coordinators assist students not meeting grade-level expectations
• Peer tutoring programs (older students helping younger)
• Academic support classes for Grades 6-12 (English and writing reinforcement)
• English Language Support (ELS) through Grade 8 only

Health & Wellbeing

• Full-time school nurse for health management and family liaison
• Campus Minister providing spiritual care and counseling for all faiths
• Advisory programs integrating values education
• Character education aligned with mission values

Important Limitations

No specialized special education program exists. The school states that all students must enroll in regular classes with minimal assistance, and severe special needs cannot be accommodated. Additionally, ELS support ends at Grade 8, meaning high school entrants need near-native English proficiency.

Community Values in Practice

The St. Mary's community is characterized by:

• Strong sense of brotherhood among students across grade levels
• Global citizenship focus through international curriculum and diverse peers
• Service orientation embedded in Catholic social teaching
• Academic ambition balanced with character development
• Tradition and innovation blending established practices with modern pedagogy

Families describe the school as having a "close community feel" where relationships extend beyond the classroom into lifelong networks. The combination of rigorous academics, values-based education, and international diversity creates a distinctive community culture focused on developing confident, capable, and compassionate young men prepared for global leadership.

Total Cost Breakdown

St. Mary's International School charges substantial fees typical of premium Tokyo international schools. Understanding the complete cost structure is essential for families planning enrollment, as expenses extend well beyond basic tuition.

Annual Tuition (2025-26)

Tuition varies by division:

• Elementary School (Readiness Program - Grade 5): ¥2,700,000
• Middle School (Grades 6-8): ¥2,800,000
• High School (Grades 9-12): ¥2,850,000

These rates place St. Mary's in the upper tier of Tokyo international schools, reflecting its IB Diploma Programme, extensive facilities (rebuilt 2009 with pool, theater, and modern campus), and consistently strong academic outcomes.

Mandatory One-Time Fees (New Students)

New families face significant upfront costs:

• Application Fee: ¥50,000 (non-refundable, required with each application)
• Registration Fee: ¥400,000 (one-time, non-refundable upon enrollment)
• Development Fund: ¥1,000,000 (one-time donation, non-refundable)

These combined one-time fees total ¥1,450,000 before any tuition payment, representing a substantial initial investment comparable to other leading Tokyo international schools.

Annual Recurring Fees

Building Maintenance Fee: ¥150,000 annually (non-refundable)

All families pay this regardless of grade level, covering facility upkeep and capital improvements.

Re-enrollment Deposit (Returning Students): ¥300,000 annually

This deposit is credited toward tuition for continuing students, effectively serving as an early payment rather than an additional cost.

Optional Transportation Costs

School bus service is available but not mandatory:

• One-way service: ¥310,000 per year
• Round-trip service: ¥420,000 per year

Families living near Setagaya may opt for alternative transportation, but many international families find the bus service convenient given Tokyo's complex transit system.

Technology Requirements

Grades 3-5 iPad Program: Each student requires an iPad and case provided by the school. New Grade 3 entrants (and transfers in Grades 4-5) are charged the device cost in September as part of their tuition payment. This is a one-time charge during these years, not an annual recurring fee.

Food Services

The school partners with Cezars Kitchen for cafeteria meals on a cashless payment basis. Rather than a fixed annual lunch fee, families register for the system and pay per meal consumed. Costs vary based on student consumption patterns, but families should budget accordingly for daily lunch expenses throughout the academic year.

Insurance Coverage

St. Mary's automatically enrolls all students in personal accident insurance at no additional cost, providing:

• ¥1,000,000 medical coverage
• ¥3,000,000 accidental death/disability coverage

This inclusion eliminates the need for separate school accident insurance policies.

Additional Expenses

Families should anticipate several smaller but important costs:

• Uniforms: Required for all students, with initial purchase and periodic replacement needs
• Activity fees: Sports jerseys, club dues, team equipment
• Textbooks and materials: Varies by grade and course selection
• IB examination fees: High school students taking IB Diploma exams face international testing fees
• SAT/standardized testing: Students preparing for US universities typically take SAT or ACT exams

First-Year Cost Examples

New Grade 9 Student (2025-26)

• Tuition: ¥2,850,000
• Application Fee: ¥50,000
• Registration Fee: ¥400,000
• Development Fund: ¥1,000,000
• Building Maintenance: ¥150,000
• Bus (one-way, estimated): ¥310,000
• Total First Year: ~¥4,760,000

Without bus service, the total would be approximately ¥4,450,000.

New Grade 1 Student (2025-26)

• Tuition: ¥2,700,000
• Application Fee: ¥50,000
• Registration Fee: ¥400,000
• Development Fund: ¥1,000,000
• Building Maintenance: ¥150,000
• Bus (one-way, estimated): ¥310,000
• Total First Year: ~¥4,610,000

Returning Grade 12 Student (2025-26)

• Tuition: ¥2,850,000
• Building Maintenance: ¥150,000
• Re-enrollment Deposit: ¥300,000 (credited to tuition)
• Bus (optional): ¥310,000-¥420,000
• Effective Annual Cost: ~¥3,310,000-¥3,420,000

Financial Aid and Scholarships

Corporate Contribution Program

St. Mary's does not offer traditional need-based financial aid or academic merit scholarships. The sole tuition assistance mechanism is the Corporate Contribution Program, a government-sanctioned scheme where participating foreign companies donate to the school in exchange for tuition-free enrollment for employees' children.

Key details:

• Provides full tuition waiver (not partial assistance)
• Available only to children of foreign nationals employed by participating companies
• Operates under Japanese tax law allowing corporate education donations
• Similar to programs at ASIJ and other Tokyo international schools
• Applications handled through employer and school accounting office
• Specific company participation list not publicly disclosed

Interested families must inquire directly with the school's accounting office and their employer's HR department.

No Other Aid Available

Not offered at St. Mary's:

• Need-based financial aid or bursaries
• Academic merit scholarships
• Athletic or talent-based awards
• Sibling discounts
• Multi-child enrollment reductions
• Fee waivers for any circumstances

The school's website explicitly states that tuition alone does not fully cover operational costs, and the institution relies on donations from alumni, parents, and supporters. However, this fundraising does not translate into student financial aid programs.

Cost Comparison and Value Context

St. Mary's tuition aligns with other premier Tokyo international schools offering IB programmes. For example, The American School in Japan charges comparable rates (¥2.6-3.0M in lower grades, rising to ¥4M+ in upper grades). The school's one-time fees (¥400,000 registration plus ¥1,000,000 development fund) match or slightly exceed peer institutions.

Despite high costs, many families consider St. Mary's a strong value proposition given:

• Consistent 100% IB Diploma pass rates (Class of 2022)
• Average IB scores of 35-37 points versus world average of ~30
• University placements at Harvard, Yale, MIT, Stanford, Oxford, and other elite institutions
• Comprehensive programs in academics, arts (14 musical ensembles), and athletics (20+ championship titles in wrestling)
• Strong alumni network supporting career development

Planning Considerations

Multi-Year Budget Planning

Families should anticipate:

• Year 1: ~¥4.5-4.8 million (including one-time fees)
• Years 2+: ~¥3.0-3.5 million annually (tuition + maintenance + extras)
• 13-year total (K-12): Approximately ¥40-45 million per child

For families with multiple sons, costs multiply directly with no sibling discount.

Corporate Sponsorship Eligibility

Families employed by multinational corporations should investigate whether their employer participates in St. Mary's Corporate Contribution Program before enrollment. This single program represents the only significant cost reduction available and can save millions of yen over a student's tenure.

Comparison Shopping

While St. Mary's fees are substantial, they reflect:

• Tokyo's high cost of living and property values
• Comprehensive IB programme implementation
• Extensive facilities and resources
• Proven track record of university placement success

Families seeking lower-cost international education in Tokyo may need to consider schools with different curricula (non-IB), smaller campuses, or less extensive extracurricular offerings.

Summary

Attending St. Mary's International School requires significant financial commitment, with first-year costs approaching ¥5 million and subsequent years requiring ¥3+ million annually. The absence of traditional financial aid means families must be prepared to meet full costs independently, unless they qualify for the rare corporate sponsorship program. Despite high fees, the school's exceptional academic outcomes, comprehensive programs, and strong university placement record provide tangible value for families seeking premier English-medium, IB-focused education in Tokyo.

Ideal Student Profile

Saint Mary's International School is purpose-built for academically capable boys who thrive in a structured, single-sex educational environment. The school's demanding English-medium, IB Diploma curriculum requires students with strong academic foundations and intellectual curiosity.

Academic Characteristics

High achievers who can handle rigorous coursework excel here. The school consistently produces IB Diploma scores averaging 35-37 points (well above the global average of ~30), with a 100% pass rate in recent years. Students regularly outperform global averages in STEM subjects—the 2020 HL Physics average was 6.36 out of 7 (versus world average 5.29) and HL Mathematics was 6.09 (versus 5.05).

The ideal candidate demonstrates:

• Strong English proficiency (near-native by high school entry)
• Solid mathematical and analytical skills
• Self-motivation and academic discipline
• College-preparatory mindset from elementary grades onward

Language Requirements

English fluency is critical. While EAL (English as Additional Language) support is available through Grade 8, no EAL classes are offered in Grades 11-12. The school explicitly states that "near-native English proficiency is required for admission to the upper grades."

Students entering high school should be comfortable with:

• Academic reading and writing at grade level
• Participating in English-only classroom discussions
• Extended essay writing and research (IB requirements)
• SAT/standardized test-taking in English

Families whose sons need significant English language support beyond Grade 8 should carefully consider whether St. Mary's is the right fit.

Family Circumstances & Values

Internationally-Minded Families

The school serves approximately 1,000 students from 47+ countries, creating a genuinely multicultural community. The typical St. Mary's family includes:

• Expatriate professionals (diplomats, multinational company employees)
• Globally-oriented Japanese families seeking Western education
• Parents prioritizing international university placement (US, UK, Canada, Australia, Japan)
• Families comfortable with Catholic-inspired values (though Catholic faith is not required)

Value Alignment Essential

While St. Mary's welcomes boys of all faiths and does not require families to be Catholic, prospective families must support the school's mission and values framework built on:

• Respect, responsibility, integrity, courage, compassion, and harmony
• Service to others and community engagement
• Faith-informed character development
• Partnership with the school in their son's education

The admissions policy explicitly states that applicants and parents must "demonstrate the potential to succeed within our English-based curriculum" and show "willingness to partner with the school." Parent-child interviews assess this alignment carefully.

Residency Requirements

Students must reside in Japan with parents holding valid visas. Living independently or with guardians is not permitted without prior school approval, making this unsuitable for unaccompanied minors.

Learning Style & Social Fit

"Boy-Friendly" Education

St. Mary's deliberately structures its pedagogy around boys' learning styles, incorporating:

• Hands-on, kinesthetic activities
• Competitive elements in academics and sports
• Physical movement and experiential learning
• Clear structure and behavioral expectations

Boys who respond well to:

• Defined rules and discipline
• Team-based competition
• Active learning environments
• Male peer groups and mentorship

...typically thrive in this setting.

Extracurricular Engagement

With over 100 activities available (one of Tokyo's largest offerings), the ideal student actively participates beyond academics. Over 90% of high schoolers engage in fine arts, and championship teams in wrestling (20+ Kanto Plain titles) and debate reflect the competitive culture.

Students who excel:

• Athletes interested in competitive sports leagues
• Musicians (14 ensembles including award-winning boys' choirs)
• Performers (drama, tri-school musicals)
• Leaders (student government, service projects)

University Aspirations

Elite University Pathways

St. Mary's is particularly well-suited for families targeting top-tier international universities. Graduates have matriculated to:

Overseas: Harvard, Yale, MIT, Stanford, Oxford Japan: Waseda (SILS), Keio (PEARL/GIGA), Sophia, ICU

The school demonstrates particular strength in placements to:

• Medical programs abroad
• Engineering and STEM fields
• International liberal arts programs in Japan

The comprehensive university counseling program begins in Grade 10 with PSAT preparation, individual counselor assignments in Grade 11, and intensive application support in Grade 12.

SAT & Standardized Testing

Students average SAT scores of ERW 602 and Math 673 (total ~1275), significantly above global means. Families whose sons have strong standardized test-taking abilities will benefit from this college-preparatory focus.

Who May Not Fit Well

Learning Support Limitations

St. Mary's explicitly states it "cannot serve students whose special needs require extensive modifications" or those needing "more than a minimum of special assistance." The school is not appropriate for:

• Students with significant learning disabilities
• Boys requiring extensive individualized education plans
• Those needing specialized special education services
• Students with severe behavioral or emotional challenges

While Learning Support Coordinators assist students not meeting grade-level expectations, and peer tutoring is available, resources are limited compared to specialized schools.

English Language Learners (High School)

Families whose sons are still developing English proficiency and plan to enter Grades 9-11 should reconsider. The absence of EAL support in upper grades means students must arrive with near-native fluency.

Social & Cultural Considerations

St. Mary's may not suit:

• Very shy or non-competitive boys who struggle in team-oriented, competitive environments
• Students preferring co-educational settings (this is all-boys K-12)
• Families seeking purely secular education (Catholic character permeates school culture)
• Boys uninterested in sports/music culture (90%+ participation rates mean these are central to social life)

Financial Considerations

High-Cost Investment

With annual tuition of ¥2.7-2.85 million plus one-time fees (¥400k registration, ¥1M development fund), first-year costs approach ¥4.8 million per child. Families should expect ~¥3 million per year ongoing per student.

No sibling discounts are offered, and traditional need-based financial aid is not available. The primary "scholarship" option is the Corporate Contribution Program—a full-tuition waiver available only to children of employees whose foreign companies participate in the donation scheme.

Families unable to meet full tuition without assistance may find limited options. This school serves primarily:

• Corporate-sponsored expatriate families
• High-income professionals
• Families prioritizing educational investment regardless of cost

The Right Fit Summary

Saint Mary's International School is an excellent match for:

✓ Academically talented boys with strong English skills ✓ Globally-minded families valuing international perspectives ✓ Students thriving in structured, disciplined environments ✓ Boys responding well to single-sex education ✓ Families supporting Catholic-inspired values (regardless of personal faith) ✓ College-focused students targeting elite universities worldwide ✓ Active participants in sports, arts, and leadership ✓ Families with financial resources or corporate sponsorship

Conversely, families should look elsewhere if seeking:

✗ Extensive special education support ✗ Co-educational environment ✗ Purely secular education ✗ Significant financial aid options ✗ English language development beyond Grade 8 ✗ Less competitive, more nurturing social culture

The school's track record speaks clearly: disciplined, motivated boys from supportive families who align with St. Mary's mission consistently achieve exceptional academic outcomes and gain admission to the world's finest universities.