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Mita International Science Academy — Not an IB School; a Dual Diploma With Australia Instead

Tokyo, Japan

In April 2025, the school's own name changed from Mita International School to Mita International Science Academy. Its flagship international credential is a Dual Diploma with Western Australia (WACE) — not the IB.

Researched by William Prep from published sources. Not yet verified by the school. — Last reviewed by William Prep: 2026-09-24

Mita International Science Academy traces back to Toita Sewing School, founded in 1902 in Setagaya-ku (Yoga). It became coeducational and was renamed Mita International School in 2015, then renamed again to its current name, Mita International Science Academy, in April 2025. The legacy William Prep directory used the earlier name, "Mita International School."

At a Glance

Founded	1902 (as Toita Sewing School) (not independently confirmed)as of: 2026-09-24
Name Change	April 2025: Mita International School → Mita International Science Academy (not independently confirmed)as of: 2026-09-24
International Programme	WACE Dual Diploma (Australia). No IB MYP/DP confirmed (not independently confirmed)as of: 2026-09-24
Est. First-Year Cost (Junior High)	≈¥1.33M2025 · as of: 2026-09-24

No IB MYP or DP Found in Any Source Consulted This Session

The legacy William Prep directory described this school's curriculum as "Japanese Curriculum + IB MYP + IB DP + Cambridge IGCSE elements." This session, none of the sources checked — the school's own site, Japanese Wikipedia, or a search of the MEXT-linked IB Consortium school list — mention IB MYP or DP authorisation for this school. What the school actually promotes as its flagship international credential is a Dual Diploma Programme (DDP) with Western Australia, launched April 2021, letting students earn a Japanese high school diploma and the WACE (Western Australian Certificate of Education) simultaneously.

William Prep’s Analysis

This isn't a minor data refresh — it's the kind of error that would derail actual application planning. A family planning around an IB Diploma, only to find the school's flagship credential is the WACE instead, would need to rethink their whole strategy. The April 2025 name change itself is also new information the legacy directory hadn't caught up with.

Fees: A Real First-Year Total of About ¥1.33M (Junior High, as of 2025)

The school's own fee page lists a ¥350,000 junior-high entrance fee, ¥552,000 annual tuition, a ¥150,000 facility fee, a ¥228,000 maintenance fee, and a ¥46,900 PTA/student council fee — a genuine first-year total of roughly ¥1,326,900. Separately, an educational enhancement fee (≈¥250,000 in year one, including an iPad) and uniforms/supplies (≈¥170,000) also apply. The page did not break out separate amounts by track (ISC/IC/MSTC).

University Entrance Eligibility in Japan

School-accreditation route	Yes (estimated)
Student-qualification route (IB, etc.)	No not publicly confirmedThe school does not appear to offer the IB or another curriculum that would trigger the individual-credential eligibility route — the DDP/WACE track is a different mechanism, not the IB.

Domestic university eligibility is presumed via ordinary graduation as an Article 1 school, though the registration itself wasn't confirmed this session. The Dual Diploma Programme (WACE) is a separate pathway designed for admission to Australian universities, not a route to Japanese university eligibility.

Fees & Estimated First-Year Cost

academic year: 2025

Entrance Fee (Junior High)	¥350,000
Tuition (Junior High, annual)JHS	¥552,000
Facility Fee (Junior High, annual)JHS	¥150,000
Maintenance/Utilities Fee (Junior High, annual)JHS	¥228,000
PTA/Student Council Fee (Junior High, annual)JHS	¥46,900
Entrance Fee (Senior High)	¥300,000
Tuition (Senior High, annual)SHS	¥480,000
Facility Fee (Senior High, annual)SHS	¥50,000
Maintenance/Utilities Fee (Senior High, annual)SHS	¥168,000
PTA/Student Council Fee (Senior High, annual)SHS	¥46,900
Estimated First-Year Total	¥1,326,900

Includes: enrolment, tuition, facilities, other — Excludes: Excludes the educational enhancement fee (≈¥250,000 in year one, includes an iPad), residential training costs, and uniforms/supplies (≈¥170,000). This uses Junior High (JHS) as the base. This fee schedule is dated 2025 and does not break amounts out by track (ISC/IC/MSTC).

What Makes This School Distinctive

Japan's first Australia-partnered dual diploma programme

Partners with Western Australia's Department of Education so students earn the WACE without studying abroad

Reportedly launched April 2021 and described as the first such Australia-partnered programme in Japan.

A distinct university pathway from the IB or A-Levels — a real advantage for families oriented toward Australian universities specifically.

Admissions

Cycle

未確認 not publicly confirmed

What Japanese Families Should Know

Who Might Find This School a Good Fit

Might suit — Families specifically considering Australian university admission

Might not suit — Families who had planned around an IB Diploma (this school does not appear to offer the IB)

William Prep’s Analysis

What was most striking in researching this school wasn't the curriculum error — it was discovering that the school's own name changed in April 2025, a basic fact the legacy directory hadn't caught up with at all. Beyond any single curriculum correction, this is about as clear a case as any for why re-researching from primary sources, rather than mechanically migrating old records, was the right call from the start.

Questions to Ask the School

1.How do fees and international-programme content actually differ across the ISC, IC, and MSTC tracks?
Why this matters: The school's own fee page doesn't break amounts out by track.
2.Did this school ever offer IB MYP or DP in the past? If so, when was it discontinued, and why?
Why this matters: There is a substantial discrepancy between the legacy directory's description and what was found this session.

Sources & Verification

学費 — 三田国際科学学園中学校・高等学校primary source · as of: 2026-09-24Fetched directly. Junior high: entrance ¥350,000, tuition ¥552,000/yr, facility ¥150,000/yr, maintenance/utilities ¥228,000/yr, PTA/student council ¥46,900/yr. Senior high: entrance ¥300,000, tuition ¥480,000/yr, facility ¥50,000/yr, maintenance/utilities ¥168,000/yr, PTA/student council ¥46,900/yr. Page does not break these figures out by course (ISC/MSTC/IC) — treated as school-wide.
三田国際科学学園中学校・高等学校 — Japanese Wikipediathird-party source · as of: 2026-09-24Founded 1902 as 戸板裁縫学校 (Toita Sewing School); renamed 三田高等女学校 (1916), 戸板高等女学校 (1937), 戸板中学校・戸板女子高等学校 (1947 postwar reform), became coeducational and renamed 三田国際学園 (2015), then renamed again to 三田国際科学学園 in April 2025. The legacy William Prep directory used the pre-2025 name and ID ("三田国際学園" / mita-international-school) — the school has since changed its own name.
Search synthesis on Mita's Dual Diploma Programme — Multiple (u-presscenter.jp, TCK Workshop, IB Consortium school list)third-party source · as of: 2026-09-24Since April 2021, the school's International Course Advanced (ICA) track has run a Dual Diploma Programme with the Western Australian Department of Education — students can earn the WACE (Western Australian Certificate of Education) alongside their Japanese high school diploma without studying abroad, reported as the first such Australia-partnered programme in Japan. No IB MYP or DP authorisation was found in any source consulted this session, including a search of the MEXT-linked IB Consortium school list — this directly contradicts the legacy directory's description of the school as offering "IB MYP + IB DP." Course structure: ISC (International Science Class), IC (International Class: Academy/Immersion), MSTC (Medical Science Technology Course, from Year 2 JHS).

Last reviewed by William Prep: 2026-09-24

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