Home > Japan > Tokyo > Seisen International School
IB and Catholic
Ages 3 to 18

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CurriculumsIB and Catholic
Language of instructionEnglish
Age RangeAges 3 to 18
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Quick summary of key school information

Language of instruction English
Native English teachers
Extra languages (other than English)
Class sizes Average 20 students / class
Maximum 25 students / class
Extracurricular activities
School bus
School's webpage:
Yearly fees: from: ¥2,300,000
to: ¥2,470,000
Address: 12-15 Yoga 1-chome, Setagaya-ku, Tokyo 158-0097 Japan

The school provides education to girls only for Grades 1 to 12. Kindergarten is coeducational.
Is this school a perfect match for you?

Tell us your preferences and we’ll calculate your compatibility.

  • Based on 10 different criteria including price and location
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All the details about this school in their own words

We have organised the information available for this school into 10 sections and 40 questions. Click or tap on the name of each section to read more.
Number of students


Number of nationalities represented in the school


Most common nationality


Ratio of local students to international students

36% : 64%

Native English speaking teachers


Language support for students not fluent in English

Yes, we provide English as an Additional Language (EAL) classes.

Additional language classes offered by the school

French, Japanese & Spanish

Max. number of students per class


Average number of students per class


Does the school employ teaching assistants?

Kindergarten, Gr 1 and Gr 2 have teaching assistants.

Use of technology in the classroom

Kg - Gr 12 all use technology in their classrooms. Kg and Elementary school have desktops and iPads in their classrooms. All Gr 6-12 students are required to bring their own laptops to school.

Do students practice religion at the school? What religion?

Yes, we are a Catholic school and religion is part of the curriculum. All students have the opportunity to attend Catholic masses during the school year.

How does the school accommodate non-religious students or students of a different religion?

We are an international school so we welcome students of all religions and races. We offer Multifaith religion classes to the non-Christian students.

External examinations or assessments available


Results in these examinations

Well above world average.

Do teachers assign homework to their students?

Yes, everyday

Approximate hours of homework given

Gr 9: 90 minutes, Gr 10: 100 minutes, Gr 11; 12: 120 minutes for IBS subjects; 180 minutes for IBH subjects

Percentage of students who pursue further education post-graduation

100% of our graduates proceed to a higher educational institution after their graduation.

Dedicated staff/programs for students with special learning needs

We have two Learning Support Specialists, one for K-gr 6 students and another for gr 7-12 students.

Learning support offered

Our learning support specialists mainly provide remedial support to students who are falling behind in math or English.
We also have an outside speech therapist who works with our younger students once a week.

The school supports gifted, able and talented students

We do not provide specific support to such students, however from grade 8 we offer math at different levels and students are encouraged to challenge themselves through academic clubs.

Student access to education psychologist

No, but we have two counsellors, one for Kg and elementary and another for middle and high school. We also have an academic counsellor for high school students.

Entry evaluation for students

Applicants must take an assessment test, followed by a family interview with the Principal.

Brief description of entry evaluation required

English reading comprehension, English writing and math.

Waiting list

Yes, some students are wait listed since some grades are full.

Deadline for registration (new academic year)

Re-registration for enrolled students is completed in late March / earlyApril.

Students can join after academic year begins

We accept new students throughout the academic school year.

School start time

School begin at 8:30 for K-grade 6 students and for grade 7-12 students, school begins at 8:20.

School finish time

School finishes at 15:00 for Kg students and at 15:20 for grade 1-12 students.

Supervised care before/after school

We have after school activities for Kg-grade 6 students.
For grade 7-12 students, extra curricular activities can be in the morning or after school.
All activities are supervised.

School bus service available

Yes. There are 11 school buses that we share with St. Mary's International school.

School provided lunches

Yes, students can bring lunch from home or have school lunch.

Food alternatives for special dietary needs (ie. vegan, kosher, halal etc)


Uniform required

Yes, all students are required to wear the school uniform.

Extracurricular activities or clubs offered

Academic clubs: brain bowl, debate, math, MUN, Firebird (science club), speech
Experiential learning: car mechanics,cross stitching entrepreneurship, fashion design, horticulture, jazz band, journalism, library science, outreach robotics, video production well-being, writing center, yearbook
Fine art clubs: vocal ensembles, instrumental groups, show choir, drama
Service trips
Sports: badminton, basketball, cross country, futsal, soccer, swimming, tennis, track & field, volleyball
Student Council & Coordinators

Sports activities included

Music and dance for K-grade 3 students.
PE for K-grade 10 students.

Sports teams or sport competitions available for students

Yes, we have sports teams and they compete against other international schools in the Kanto plain region, and in Far East tournaments.

Sports facilities at the school

We have an outdoor sports field and a gymnasium

Qualities and characteristics best defining the school

Seisen, a Catholic international school educates future world citizens to become men and women for others and with others, in the spirit of Jesus Christ. Our guiding principles are based on the tradition of learning and service handed down from Saint Raphaela Mary, the founding member of the Handmaids of the Sacred Heart of Jesus.
Our guiding principles: educate women for social and cultural transformation, nurture faith development, shape international mindedness and celebrate international diversity, side with the poor, reach out to the world with hospitality and hope, act a leaven for worldwide community building, reverence creation and share all that we are and have.

Teaching approach of the school

Challenging students in their learning and inspiring them to live and act on the basis of their faith and values.
Seisen students are expected to be risk takers, collaborators, reflective inquirers, knowledgeable, compassionate, principled, leaders, global minded and religious.
Through the Montessori, PYP, MYP, IGCSE, and IBDP programs, students are provided opportunities to become active and independent learners. Our social justice service trips in the developing world offer transformative and on-going educational opportunities.

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