British-curriculum school in Rangsit Khlong 3
Siam International School
An English-medium international school in Bueng Yi Tho, Pathum Thani, offering a British-curriculum pathway from Nursery through IGCSE and A levels.
School pathway
Nursery to Year 13
Curriculum
British-based / English National Curriculum
Teaching language
English-medium
Office contact
Monday–Friday 08:00–17:00
Overview
About Siam International School
Siam International School (SIAMIS; โรงเรียนนานาชาติสยาม) serves families around Rangsit Khlong 3 from its campus on Rangsit–Nakhon Nayok Road. Its current programme information describes an English National Curriculum/British-based pathway, with play-based early learning, primary education, lower secondary and IGCSE/A-level study. Robotics, coding, science investigations and practical projects support the academic programme. For a new pupil, the school starts with an enquiry and campus visit, followed by assessment, application review and an offer where a place is available. Families should compare the standard and promotional 2026–2027 fee tables carefully: their totals include different components. Admissions can confirm the applicable offer, complete annual costs and the child’s proposed placement before any payment.
Learning from early years to sixth form
Purposeful early play
The dedicated Nursery page describes provision for ages 2–3, using stories, music, movement and sensory exploration to develop communication, independence and social confidence.
Secondary and examination study
Lower Secondary builds foundations in English, mathematics, science and humanities before IGCSE and A-level specialisation. The school describes pathways in enterprise, science, technology, creative arts and humanities.
Extracurricular choices
The current ECA page lists football, cooking and baking, music, games and strategy, robotics, arts and languages. Availability and any additional charges depend on the programme selected.
How the admissions process works
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01
Enquire and visit
Contact Admissions to arrange a school tour and discuss the child’s learning needs.
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02
Assessment and application
The visit includes an assessment to help determine support and placement. Submit the application and supporting documents for review.
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03
Offer and confirmation
Review the official offer, accept the place and complete the required payment arrangements. Submission alone does not guarantee admission.
Fees, trial days and practical questions
How much are the standard annual fees?
For 2026–2027 the standard table totals THB 288,000 for Nursery/KG, THB 420,000 for Years 1–6, THB 480,000 for Years 7–9, THB 510,000 for Years 10–11 and THB 540,000 for Years 12–13. These columns cover tuition, resources and lunch/snacks; one-time and other charges are separate.
Why are the promotional totals lower?
The same page publishes a separate promotional schedule, including different tuition/enrolment amounts and columns for insurance, application and a field trip. It is not directly comparable with the standard tuition/resources/meals total. Ask Admissions for the offer’s eligibility, duration and complete inclusions.
Can a child try school before enrolment?
The fees page advertises a complimentary three-day Discovery Program including meals and school activities. Ask Admissions to confirm suitable dates, availability and placement.
Which additional payments should I ask about?
The standard schedule lists application, enrolment and visa-assistance payments separately, plus annual accident insurance. Uniforms and optional after-school activities cost extra; field-trip costs vary. The school says fees are due before each term and the enrolment charge is per family.
Practical information
Check the latest operating details with the venue before travelling.
Opening hours
- Monday
- 08:00–17:00
- Tuesday
- 08:00–17:00
- Wednesday
- 08:00–17:00
- Thursday
- 08:00–17:00
- Friday
- 08:00–17:00
Department contact hours published on programme pages; weekend hours are not stated. These are not pupil lesson times.
Times shown in Asia/BangkokContact and directions
55/5 Moo 1, Rangsit–Nakhon Nayok Road, Bueng Yi Tho, Thanyaburi, Pathum Thani, 12130, Thailand
Siam International School map
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Helpful related information
Information you can verify
Important details are reviewed against the organisation’s own information and other accountable sources.