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Turkey, Istanbul
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Istanbul, Turkey. The school operates across two campuses in Istanbul, in the districts of Sarıyer and Avcılar.
Kindergarten (ages 2-6) and Primary School (ages 6-12).
Private international school
Application fees
- No published application, enrollment or registration fee amount is available for ONE! International School in Istanbul for the 2026/27 or 2025/26 academic years. The school's public information does not list any numeric application fee.
Tuition fees by year group (per term / per year)
- No published tuition schedule by year group, term, or annual total is available. The school's public information lists the age ranges and the grades offered for the initial intake (Kindergarten for ages 2–6 and Primary for ages 6–12) but does not provide per-term or per-year tuition figures for any grade.
Billing schedule and payment terms
- No published billing schedule (termly/annual instalments), due dates, early‑payment discounts, or late‑payment penalties are available from the school's public materials. There are no posted payment terms such as required deposits, refundable/ non-refundable advance payments, or instalment plans.
Boarding fees (if applicable)
- Boarding is not indicated as a service for the Istanbul campus that is described for ages 2–12; no boarding fees or boarding options are published. Treat boarding as not applicable for the listed Istanbul intake.
Other costs and fees (uniform, meals, transport, materials, extracurriculars, exams, capital / development fees)
- No published schedules or amounts for uniform costs, meal fees, transportation, learning materials, exam fees or capital contributions are available. The school's public information describes facilities and activities but does not provide associated charges or a list of mandatory/optional additional fees.
Refund information
- No published refund policy or conditions for returns of deposits/fees is provided in the school's public materials. There are no posted terms about refunds on withdrawal, failed visas, or mid‑year departures.
Fee payment options (credit card / bank transfer / local payment methods)
- No published details on accepted payment methods (credit card, bank transfer, local currency requirements, or online payment portals) are available. The school's public information does not specify which payment channels are supported.
Summary of findings and limitation
- The school's public information for the Istanbul campus confirms admissions are open and describes the programmes and age ranges for the initial intake (Kindergarten and Primary), but it does not publish any numeric fee schedule, payment timetable, payment methods, refund policy, or additional mandatory charges for the 2026/27 or 2025/26 academic years. Because numeric fee data are not published in the school's available public materials, no definitive amounts (application fees, per‑term or annual tuition by grade, boarding fees, uniform costs, or payment terms) can be provided here.
ONE! International School Istanbul is a private international school for ages 2 to 12 that blends Montessori methods in Kindergarten with the ONE! Educational Standard. The program integrates the IB Curriculum framework (PYP), a bespoke curriculum, and the ONE! approach to digital personalisation alongside an entrepreneurship course. Students study Mathematics and Foreign Languages in depth within an extended academic block. The campus offers spacious classrooms, modern sports facilities, a well-stocked library, state-of-the-art science laboratories, and a swimming pool for swimming lessons, all supporting premium personalised learning environments. The networked school model includes eight other campuses in Russia, Saudi Arabia and Turkey, with around ten years of educational experience. Two new Istanbul campuses were announced for September 2024, with further plans for 2025. Owned by North-West Education Center LLC, ONE! places emphasis on preparing students for admission to the world's top-100 universities and, where possible, direct employment in the IT industry, supported by partnerships with leading tech companies and a teacher training centre.
