Nursery to Sixth Form in Thonburi
Singapore International School Thonburi (SISB Thonburi)
SISB’s Thonburi campus in Khlong Khwang offers nursery to Sixth Form for ages 2–18, progressing from early years to Singapore primary and Cambridge secondary qualifications.
Ages
2–18 years
School stages
Nursery–Kindergarten through Sixth Form
Qualification pathway
Cambridge IGCSE and AS/A Levels
Location
Khlong Khwang, Phasi Charoen
Overview
About Singapore International School Thonburi (SISB Thonburi)
Singapore International School Thonburi is SISB’s campus on Ratchamontri Road in Khlong Khwang, Phasi Charoen. It serves nursery through Sixth Form, with published age bands from two to eighteen years. Nursery and kindergarten follow EYFS early years learning; primary uses the Singapore curriculum. Grades 7–8 blend Singapore and UK approaches before Cambridge IGCSE in Grades 9–10 and Cambridge AS/A Levels in Grades 11–12. The campus combines classroom learning with activities, academies and experiential trips. Admissions offers school tours by appointment, followed by an application, age-appropriate assessment and interview. Families should contact the Thonburi team specifically for place availability and an itemised fee quotation.
The learning pathway
Early years and primary
Nursery–Kindergarten, ages 2–6, uses EYFS. Primary, ages 6–12, follows the Singapore curriculum.
Secondary and Sixth Form
Grades 7–8 blend Singapore and UK curricula. Grades 9–10 work towards Cambridge IGCSE, followed by Cambridge AS/A Levels in Grades 11–12.
Applying for a place
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01
Enquiry and application
Arrange a school tour and submit the application with identity documents, previous-school reports and other documents requested by Admissions.
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02
Assessment, decision and enrolment
The school schedules an age-appropriate assessment and interview. An offer and payment of the required fees precede enrolment; assessment does not guarantee an immediate vacancy.
Fees and practical questions
What are the 2026–2027 fees?
Annual tuition ranges from THB 401,700 for Nursery to THB 789,300 for Grades 11–12. The published standard application and assessment charges are THB 5,000 each, enrolment THB 220,000 and refundable deposit THB 50,000. Resources and meals are additional. Promotions can alter the enrolment charge, so request the final quotation.
What does tuition exclude?
The fee page excludes uniforms, sports equipment, external examinations, IT devices, personal equipment, certain trips, school bus transport and optional enrichment or academy classes. Resources and meals have separate schedules.
How do the pupil hours differ from opening hours?
The 2026–2027 schedule gives Nursery 08:00–14:00, Kindergarten 07:30–14:30, Primary 07:15–14:50 and Grades 7–12 07:00–14:30. The map lists weekday opening hours of 07:30–16:30; confirm the child’s year-specific arrangements with Admissions.
How do families contact the Thonburi campus?
Call 02 153 9393 extension 1 or email enrol.tr@sisb.ac.th for admissions. General enquiries use the same telephone number and info.thonburi@sisbschool.com. The campus is at 138 Ratchamontri Road, Khlong Khwang, Phasi Charoen, Bangkok 10160.
Which payment methods are published?
The campus fee page lists bank payment or transfer, cards and Alipay/WeChat, with method-dependent charges. Cash is limited to payments of THB 5,000 or less. Confirm the invoice instructions and any surcharge directly with the school.
Practical information
Check the latest operating details with the venue before travelling.
Opening hours
- Thursday
- 07:30–16:30
- Friday
- 07:30–16:30
- Saturday
- Closed
- Sunday
- Closed
- Monday
- 07:30–16:30
- Tuesday
- 07:30–16:30
- Wednesday
- 07:30–16:30
Map-listed weekday opening hours. Pupil hours differ by year group; arrange a school tour with Thonburi Admissions and check holiday access.
Times shown in Asia/BangkokContact and directions
138 Ratchamontri Road, Khlong Khwang, Phasi Charoen, Bangkok, Bangkok, 10160, Thailand
Singapore International School Thonburi (SISB Thonburi) map
Open full map
Helpful related information
Information you can verify
Important details are reviewed against the organisation’s own information and other accountable sources.