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Traill International School

Thailand, Bangkok

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The school at a glance
Instructs in English
Fees THB 358,200 - 558,000
Ages 2 - 18 years
Pupil numbers 450
Type Co-educational, Co-educational (boarding)
Opened 1966
Bus Service Yes
Academic offering
Curriculum British Curriculum, Cambridge (Primary), Cambridge (Secondary), Cambridge IGCSE, Cambridge A Levels
Taught languages English, French, Japanese, Mandarin, Thai
Typical class size 450
Strengths Sport, Performing Arts, Visual and Creative Arts
Clubs Academic and Intellectual, Arts and Creative, Social and Hobbies, Community and Service, Lifestyle and Wellbeing
Stages Early Years, Primary School, Secondary School, Sixth Form
Introduction

Traill International School, established in 1966 and located at 43 Soi 16, Ramkhamhaeng Road, Hua Mak, Bang Kapi, Bangkok, serves about 450 co‑educational students aged 2 to 18 . The school follows a modified English National Curriculum, taking learners through Cambridge IGCSE in Year 11 and Cambridge A‑Levels or Traill Diploma in Sixth Form. Class sizes are kept small with a student‑teacher ratio of 8:1 . In Bang Kapi district, its campus lies near Ramkhamhaeng University and major shopping and sports facilities, in a quiet residential/commercial neighborhood about 8 km from central BTS access. English is the language of instruction, and students study Thai language, French, Japanese, and Mandarin. Traill is noted for STEM opportunities (early computer education), a strong sports programme, and consistent academic achievement through the Cambridge examination system. It also offers extracurricular clubs such as drama, cooking, music, chess, martial arts and team sport activities.

43 Soi 16, Ramkhamhaeng Road, Hua Mak, Bang Kapi District, Bangkok 10240, Thailand

The Essentials

Traill International School has 450 pupils, typical class sizes of 450, instruction in English.

Location
Traill International School is located in the Ramkhamhaeng area of Bangkok, Thailand. The campus is accessible via major road networks and is situated near shopping malls and sports facilities.

Stages
The school offers education from Early Years (age 2) through to Year 13. It is divided into Early Years, Primary (Years 1–6), Middle School (Years 7–9), and Senior School (Years 10–13), including IGCSE and A-Level programmes in the final years.

Type
Traill International School is a co-educational day and boarding school. Boarding is available for boys only and is geared towards student-athletes, offering training alongside academic programmes.

Additional learning support
The school offers additional academic, language, and pastoral support through its admissions screening process.

Country affiliation
The school is not affiliated with any country.

Religious affiliation
The school has no religious affiliation.

School day structure
The school day at Traill International School begins around 7:10 AM, with academic lessons running through the morning and into the early afternoon. Students have a mid-morning break and a lunch break of approximately 45 minutes, with meals provided in the school cafeteria. The academic day ends at 2:15 PM, followed by Extracurricular Activities (ECAs) from 2:30 PM to 3:30 PM.

Bus service
The school offers transportation.
Diving Deeper

Uniform Requirement
Uniforms are mandatory and there is a different uniform for each school section; uniforms and the sports kit are available for purchase at the school shop.

House System
Traill has a House System with three houses; students from all year groups compete in events and challenges, and points are added to the overall cross-campus total for the Houses; the system fosters teamwork and character development.

Governance and Ownership
The school is governed by a designated governing body.
Fees

Annual tuition at Traill International School ranges from THB 358,200 to THB 558,000 for 2026/27.

Application Fee: THB 5,500 (non-refundable)

Annual Tuition Fees
Nursery: THB 116,500
Kindergarten: THB 122,000
Reception: THB 130,000
Years 1–2: THB 146,000
Years 3–6: THB 150,000
Years 7–9: THB 174,500
Years 10–11: THB 182,000
Years 12–13: THB 188,500

Boarding Fees
Boarding (Full board, termly): THB 147,000

Other Fees
Caution deposit: THB 20,000 (refundable)

English as an Additional Language (EAL): THB 15,000–30,000 per term (based on assessment)

Capital levy: THB 50,000 (one-time, non-refundable)

Payment Method
Payment is accepted via bank transfer; credit card options are not specified.
Academics

Traill International School teaches British Curriculum, Cambridge (Primary), Cambridge (Secondary), Cambridge IGCSE, Cambridge A Levels for students aged 2 to 18.

Curriculum
Traill International School follows the British National Curriculum from Early Years through Sixth Form. In Kindergarten, children follow the EYFS framework, focusing on key developmental areas through structured play and thematic learning. Primary students (Years 1–6) study core subjects including English, maths, science, and computing, alongside languages, art, and PE, with progress tracked using Rising Stars assessments. The Middle Years programme (Years 5–7) bridges Primary and Secondary, combining subject specialisation with continued development of foundational skills. In Secondary, students follow Key Stage 3 in Years 7–9, before beginning the two-year Cambridge IGCSE programme in Years 10–11, typically taking 9–10 subjects. Sixth Form students can choose either the Cambridge A-Level programme or the Traill Diploma, a coursework-based alternative focused on personal interests and future plans.

Academic calendar
Wellbeing

Social and Emotional Learning (SEL)
The school designs its PSHE (Personal, Social, Health Education) curriculum to support SEL through regular lessons that celebrate cultural diversity and personal responsibility. Dedicated form tutors and pastoral teams guide students in goal‑setting and reflection using SMART targets. Residential trips and house competitions further develop teamwork, confidence, and communication skills. Traill offers structured pastoral care to ensure students feel valued and supported throughout their school journey.

Special Educational Needs (SEN)
Traill is not a specialist SEN school, but it provides learning support to students identified with specific needs through initial assessments and a dedicated team. The Gifted & Talented policy explains how differentiated learning plans are used, along with mentorship and enrichment ECAs, to support identified abilities. While core SEN categories are not listed explicitly, Traill’s assessment and pastoral systems enable tailored teaching and tracking for individuals needing additional support. The school also adjusts homework and class activities as needed. Specialist staff are available to support both academic and pastoral needs.

English as an Additional Language (EAL)
The school employs a team of nine specialist teachers to support students with limited English proficiency. These teachers provide targeted language support alongside mainstream lessons to ensure learners can access the curriculum.

Mental Wellbeing
The school promotes mental wellbeing via whole‑school care systems, including form tutors, pastoral teams, and access to school nurses. PSHE lessons address emotional literacy and resilience, reinforced through daily routines and SMART target monitoring. Residential trips and house events help build student self-esteem, confidence and healthy social interaction.

Safeguarding
Traill maintains clear safeguarding policies, overseen by designated staff and regularly reviewed under the British Schools Overseas inspection. Formal procedures are in place for concerns or complaints, with transparent escalation channels up to a review panel if needed. The school ensures staff receive DBS checks and training, while child protection is monitored by the governing body. Facilities such as campus security, safe crossing procedures, and bus GPS tracking contribute to day‑to‑day safety. Communication channels allow parents to report issues quickly and confidentially.

Safeguarding Policy
Parent Experience

History
Traill International School was founded in 1966 by Mr. and Mrs. Anthony Traill as "The Preparatory School," Thailand’s first British secondary school with just 82 students. The Traill family remains involved as Governors and Directors. During the 1970s and 1980s, the school introduced air-conditioned classrooms, O-Levels and A-Levels, and became one of Thailand’s first schools to offer computer education and London University examinations. These early innovations set Traill apart in Bangkok’s educational landscape.

Community
The school community includes students from nearly 40 nationalities, creating a multicultural environment enriched by events such as International Day, House competitions, and cultural assemblies. Personal, Social and Health Education (PSHE) lessons celebrate diversity through festivals and intercultural awareness activities. The house system fosters cross-age cooperation, teamwork, and school-wide citizenship challenges.

Parent Teacher Association (PTA)
The Parents and Teachers of Traill (PATT) is an elected group of parents each school year who support communication between families and staff. They organise events like the annual Traill Family Fun Fair, a t-shirt design competition, and support major school occasions such as Sports Day and International Day. PATT meets regularly to discuss ideas and plan activities, encouraging other parents to volunteer and contribute. They also assist in coordinating refreshments, stall arrangements, and liaise with school leaders to enhance school life.
Gallery
Facilities

Facilities Overview
The school is located at Ramkhamhaeng 16, Huamark, Bangkapi, Bangkok 10240, Thailand. Traill International School delivers a British Curriculum from Kindergarten to Year 13. It offers IGCSE, AS Levels, and A Levels as examination pathways. English is the language of instruction, with an ESL program to support learners; Thai language, culture and history is taught as part of the curriculum. The campus includes a well-stocked library, an 8:1 student–teacher ratio, a large gymnasium, a football pitch, and a swimming pool.

Sports Facilities
The school features a large gymnasium, a football pitch, and a swimming pool. The sports program offers two pathways, including the Elite Academy Program. It emphasizes good sportsmanship, respect, teamwork, self-discipline, confidence, handling pressure, and resilience. It aims to develop well-rounded student-athletes who balance academic and athletic commitments.

Academic Facilities
Small class sizes and an 8:1 student–teacher ratio support individualized learning. A team of nine specialist teachers provides subject-specific support, including English language support for pupils arriving with limited English proficiency. The library is well-stocked and resourced. The curriculum covers a broad range of subjects up to examination and diploma levels, including IGCSE, AS Levels, and A Levels. Traill is accredited by British Schools Overseas through 2028 and operates as a Cambridge International Examinations center.

Extra Curricular Facilities
Traill offers a varied range of extracurricular activities (ECAs) that run daily from 2:30 pm to 3:30 pm. Many ECAs are provided free of charge; if external providers are involved, there may be costs. ECAs can be booked via online submission forms that go live in the first week of each term, with separate forms for Primary and Secondary. Participation develops life and people skills and boosts self-esteem.
Extra-Curricular Activities

Academic & Intellectual
The school follows a British curriculum and offers IGCSE, AS Levels, and A Levels, and is accredited by British Schools Overseas. Small class sizes and experienced teachers support individual pupil progress. Kindergarten/Early Years through Sixth Form provide education across the full range of grades. English as a Second Language and Thai Language, Culture and History are part of the curriculum.

Cultural & Language
Thai Language, Culture and History is part of the curriculum. The school emphasises cultural diversity with nearly 40 nationalities represented among pupils. The school is located in Bangkok, Thailand.

Social & Hobbies
Traill offers a varied range of Extracurricular Activities (ECAs) that run daily from 2:30 pm to 3:30 pm. ECAs help students develop life and people skills and encourage commitment. Most ECAs are provided free of charge, with some activities involving external providers that may incur costs. Booking is via online submission forms, with year-group specific forms for Primary and Secondary.

Community & Service
Pastoral Care is a cornerstone of Traill. PATT (Parents And Teachers of Traill) engages families in Traill's community.

Leadership & Professional
PATT (Parents And Teachers of Traill) provides a platform for parental engagement in school life.

Lifestyle & Wellbeing
Pastoral Care supports student well-being. PSHE programme fosters well-being and personal development. Sports are part of the school's life and contribute to a balanced program, integrating academics with sports and extracurricular activities.
Languages

Language Provision
English is the language of instruction with an English as a Second Language (ESL) program to support students joining mainstream education. Thai language and culture is taught in two tracks: a Thai Language, Culture and History programme for native Thai speakers aligned to the Thai MOE curriculum, and a Thai Language, Culture and History programme for non-native speakers offered from KG1 to Year 9; non-native speakers may join the native speakers' class if eligible, and students progress to Year 11 for iGCSE First Language Thai. The curriculum also includes specialist language teaching in Mandarin, Japanese, French and Thai Language and Culture (with intercultural studies in Key Stage 2 covering Japanese, Mandarin and French).

Immersion Programs
Two immersion classes exist within Key Stage 3 for beginners up to lower intermediate. In these classes, students attend mainstream Art, P.E. and Games while the remainder of the time is spent in the ESL classroom, where English, Mathematics and Science are taught by ESL specialists; Information Communication Technology, Geography, History and General Studies are taught informally to support language acquisition. ESL Class 3 is a partial immersion class in which students attend mainstream Drama, Music, Mathematics, ICT, Art, P.E. and Games, with the remainder of the time spent in the ESL classroom for History, Geography, General Studies and ESL Science.
Reputation

Accreditations
Cambridge International School
Licensed to offer Cambridge IGCSE and A-Level qualifications through Cambridge Assessment International Education.

Education Development Trust (EDT)
Regularly inspected under the International Schools Quality Mark framework; evaluates teaching quality, student welfare, and leadership.

British Schools Overseas (BSO)
Accredited and inspected under UK Department for Education standards for overseas British schools.

ISQM Silver Accreditation
Recognition under the International Schools Quality Mark for meeting global standards in school leadership, teaching, and outcomes.

ECIS (European Council of International Schools)
Member of a global organisation supporting best practice and collaboration in international education.

FOBISIA (Federation of British International Schools in Asia)
The school is involved in regional events, professional development, and student competitions.

TISAC (Thailand International Schools Activity Conference)
Member of a network facilitating inter-school sports and cultural events in Thailand.

ISAT (International Schools Association of Thailand)
National member association representing international schools before Thai authorities.
Admissions

Admissions
1. Book a personalised tour or open house
Visiting the campus helps you observe learning spaces, meet teachers, and ask about school life before formally applying.

2. Submit the application form
Complete and hand in the form either during your visit or on the assessment day. Along with it, provide documents such as passport photos, birth certificate/passport, recent school reports, and any relevant medical or learning support records.

3. Attend the assessment and interview
Younger children take a one‑day classroom trial, while older students sit English, maths and science written and oral assessments.

4. Receive offer and pay enrolment fee
If offered a place, you must pay a non-refundable enrolment fee within two weeks to secure your child’s spot.

Scholarships
The school does not appear to offer scholarships (e.g. fee discounts or merit-based awards) based on information publicly available.

Waitlist
Traill does not operate a formal waitlist or pool system.
School Events
The school has not added events
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