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UWC ISAK Japan

Japan

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Boarding, Uniform and Food

Daily life details and school culture

Boarding Arrangements

Residences offer shared bedrooms and living areas. Rooms are two-person or four-person and housed in facilities for 12 to 18 students, with a spacious living room, kitchenette, and laundry facilities. Each house is supervised by a House Mentor and Residential Advisors, and students run their own house-management systems. Blended housing with gender-neutral facilities is available with parental consent.

Uniform Requirement

UWC ISAK Japan does not have uniforms.

House System

UWC ISAK Japan uses a house system within the boarding program. Each house runs its own management system, helping students develop leadership and problem-solving skills, and is supervised by a House Mentor and Residential Advisors. Blended housing with gender-neutral facilities is available with parental consent; most houses are single-gender.

Governance and Ownership

The school is governed by a Board of Directors. It is accredited by the Japanese Ministry of Education (MEXT) and is an Official IB World School.

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The school at a glance
Instructs in English
Fees ¥0 - 7,455,000
Ages 14 - 18 years
Pupil numbers 200
Type Co-educational (boarding)
Opened 2014
Bus Service No
Availability Are there places?
principal
Arden Tyoschin
School Principal

UWC ISAK Japan is a co-educational, full-boarding high school in Karuizawa, Nagano. It opened in 2014 as International School of Asia, Karuizawa (ISAK) and joined the UWC movement in 2017. Students study in Grades 10–12. Grade 10 is described as “Pre-IB” with a leadership and project-work focus, and Grades 11–12 follow the IB Diploma Programme (including TOK, the Extended Essay and CAS). UWC ISAK Japan empowers transformational leaders to make a positive impact now and in the future. As Japan’s first full-boarding international high school, we educate intellectually curious, compassionate, and innovative students from diverse backgrounds.

School Events

Past Events

Meet with Admissions - 2026-05-07
Meet with Admissions - 2026-05-07
On-campus admissions information session for prospective families considering applying to UWC ISAK J...
Thursday, 7 May 2026 at 08:00 GMT+9 UWC ISAK Japan Campus, Karuizawa, Nagano, Japan

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