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France, Paris
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9 rue de la Sabotte, 78160 Marly-le-Roi, France. Marly-le-Roi is a commune in the Île-de-France region to the west of Paris. The area is residential with local shops and services.
Preschool; Primary School. The school is organized into early years and elementary levels.
International school
France
Application / Registration fees
- Enrollment (one-time, due at first registration): €1,200.
- Administration fee (due in the first year after enrollment): €500.
- Supplies and starter uniform (one-time, due at first registration): €700.
Admissions initial payment noted on enrolment form
- For some published enrolment material the registration amount is shown as €900 and school supplies €300 payable at submission of the registration form; families should expect an upfront registration/supplies payment when a place is reserved.
Tuition — monthly (published as monthly rates charged over 10 months)
- Nursery (ages 18 months–4 years) — monthly (over 10 months):
- Full-time (8:00–18:00): Tuition €759; Snack €27; Canteen €140; Morning care €87; After-school clubs €140; Total monthly amount €1,153.
- Full-time (9:00–16:00): Tuition €759; Snack €27; Canteen €140; Total monthly amount €926.
- Three-quarter time (9:00–15:00): Tuition €659; Snack €27; Canteen €140; Total monthly amount €826.
- Half-day morning (9:00–11:45, for children up to 3 years): Tuition €339; Snack €15; Total monthly €354.
- Half-day midday (9:00–13:00, for children up to 3 years): Tuition €359; Snack €15; Canteen €140; Total monthly €514.
- Reception (foundation year) — monthly (over 10 months):
- Full-time (8:00–18:00): Tuition €1,079; Snack €27; Lunch €140; Morning care €87; After-school clubs €140; Total monthly €1,473.
- Full day (9:00–16:00): Tuition €1,079; Snack €27; Lunch €140; Total monthly €1,246.
- Years 1–6 (ages 6–11) — monthly (over 10 months):
- Full-time (8:00–18:00): Tuition €1,135; Snack €27; Canteen €140; Morning care €87; After-school clubs €140; Total monthly €1,529.
- Full day (9:00–16:00): Tuition €1,135; Snack €27; Canteen €140; Total monthly €1,302.
Tuition — annual (published annual fee schedule for the academic year 2025–2026)
- Pre-primary & Primary (full-time) — annual tuition: €11,685.
- Pre-primary (4 days) — annual tuition: €11,185.
- Pre-primary (3 days) — annual tuition: €9,285.
- Pre-primary (2.5 days) — annual tuition: €8,785.
- Annual canteen (canteen/lunch) option: €1,395; lunch box option: €250; annual snack provision: €250.
- Morning daycare, after-school club and tutoring annual fees are published separately (examples: morning daycare 5 days €1,440; after-school clubs 4 days €2,475; tutoring 3 days €1,620).
Other recurring and optional charges
- After-school clubs (annual): examples include €2,475 (4 days), €1,987 (3 days), €1,238 (2 days), €973 (1 day).
- Tutoring (annual): examples include €1,620 (3 days), €1,070 (2 days), €650 (1 day).
- Morning daycare (annual): examples include €1,440 (5 days), €1,150 (4 days), €918 (3 days), €648 (2 days), €360 (1 day).
- Occasional/exceptional session daily rates also published (example: exceptional day €100).
- Late collection penalty: €10 every 10 minutes after 6:00 p.m.
- Returned cheque or refused direct debit charge: €100 per event.
- Fixed fee for reminders on unpaid accounts: €30 per letter.
- Discounts / promotional offers: a sibling discount is published (example: €1,000 discount from the second child); referral discounts may also apply.
Billing schedule and payment terms
- Payment options (installment plans) — a single final payment by bank transfer within 30 days of invoice, or SEPA direct-debit instalments on the 27th of month according to one of these schedules: six payments (27 Aug–27 Jan), ten payments (27 Aug–27 May), eleven payments (27 Aug–27 Jun), or twelve payments (27 Aug–27 Jul).
- Payments are due in advance according to the chosen schedule.
- Any payment made after the 27th of the month is considered late and is subject to a 10% surcharge.
- All bank transfer, SEPA direct-debit or cheque arrangements must use the school's published banking details or the signed SEPA mandate when relevant.
- For refusal/returned instruments the school applies the €100 returned-payment fee and may apply collection charges.
Boarding
- Boarding is not offered for the pre-primary and primary age ranges described; no boarding fees are published.
Uniform and supplies
- A starter uniform pack is charged as part of supplies: a starter pack is described in the published materials and the supplies/uniform charge is shown in the published fee schedule (see the supplies/uniform one-time fee above). Specific items in the starter pack include winter coat, raincoat, PE trousers, cardigans, polo and T‑shirts and standard trousers. Annual replacement uniforms and additional pieces are charged separately if required.
- Annual supplies-only fees for some ages (2–3 years) are shown as €400 in the published schedule for subsequent years.
Refunds, withdrawal and absence policy
- There is no refund for absence, dismissal/expulsion, or voluntary departure for periods already invoiced.
- If a family withdraws during the school year, the school must be notified by registered letter with acknowledgment of receipt with two months' notice.
- If a pupil leaves before 31 December of the school year the fees due are 70% of the tuition; after 31 December the fees are due in full (100%).
- Students arriving during the school year are billed as follows: arrivals before 31 December — 100% of the tuition; arrivals 1 January–31 March — 70% of the tuition; arrivals after 31 March — 40% of the tuition.
- No refund is given for absence or dismissal. Late or unpaid fees incur the penalties and charges noted above.
Accepted payment methods
- SEPA direct debit (mandate form used for recurring instalments).
- Bank transfer (virement) for single payments and transfers.
- Cheques are referenced in the payment conditions (returned-cheque fee applies).
- Invoicing and the chosen instalment schedule determine exact due dates and the instalment amounts.
Key practical notes for budgeting
- Monthly figures shown on the admissions page are published as “monthly over 10 months”; an annual fee schedule is also published and includes separate annual amounts for tuition, canteen, clubs and daycare.
- Additional optional services (clubs, tutoring, daycare, exceptional days) and incidentals (late collection, returned-payment fees) should be included when estimating total yearly cost.
Over 70 nationalities represented
Trillium International School is an English–French bilingual school in Marly-le-Roi, about 30 minutes from Paris. The nursery follows Montessori pedagogy, with classes limited to 14 and an assistant in the Nursery. The preschool ages 2–4 explore the world through observation, sensory activities and hands-on learning, while Reception and Primary (ages 5–11) study the British and French curricula in a bilingual framework. The curriculum blends British and French content with Montessori-inspired methods, including a dedicated Science, Technology and Robotics Room where students engage in projects across Life and Earth Sciences, Physics and Chemistry, and Technology and Engineering. Pre-primary introduces programming with Bee-Bot, Cubetto, and ScratchJr, and Primary extends to visual coding and programmable robots such as Thymio and LEGO WeDo using iPads to diversify resources. English is taught alongside options for Chinese or Spanish. After-school care and holiday camps complement language development, sport, and cultural activities in a supportive bilingual community.
