Bangkok International Preparatory and Secondary School (Bangkok Prep), Bangkok

Operating for over two decades in Bangkok's competitive international education market, Bangkok Prep follows the National Curriculum of England from early years through secondary education, culminating in IGCSE and A Level qualifications alongside BTEC options and Extended Project Qualifications. The school's location near On Nut BTS station provides convenient access for families across Bangkok's eastern districts, while its T77 community campus features modern facilities supporting diverse learning approaches.

With students representing over 60 nationalities, Bangkok Prep maintains one of Bangkok's most internationally diverse school communities, creating rich cultural exchange opportunities within its British curriculum framework. The school's triple accreditation from CIS, NEASC, and Thailand's ONESQA demonstrates commitment to maintaining international education standards while meeting local regulatory requirements. Graduates consistently gain admission to prestigious universities including University College London, King's College London, Cornell University, and University of British Columbia, reflecting the school's academic preparation quality.

Strengths

Triple accreditation from CIS, NEASC, and ONESQA providing quality assurance
Over 60 nationalities creating highly diverse international community
Strong university placement record including top global institutions
Convenient location near On Nut BTS station
Complete British curriculum pathway from early years to A Levels
Modern campus facilities supporting diverse learning approaches
Extended Project Qualification and BTEC options providing curriculum flexibility

Considerations

Limited public information about specific fees and enrollment numbers
Newer establishment compared to some Bangkok international schools founded in the 1980s-90s
British curriculum focus may not suit families seeking IB or American pathways
Eastern Bangkok location may be less convenient for families in western districts

Academics

2025 A Level Results: 52% A -A, 72% A -B (95 students); 2025 IGCSE Results: 58% A -A, 92% A -C (118 students). IB Average Score: Not published (school offers A-levels/BTECs instead of IB Diploma). University destination highlights include Cambridge University, LSE, Imperial College London, UCL, Lancaster University, and University of Exeter.

School life

Sports: Basketball, Football, Rugby, Touch Rugby, Athletics, Running, Cross Country, Tennis, Swimming, Water Polo, Gymnastics, Badminton, Netball, Table Tennis, Rock Climbing, Volleyball, Golf, and Triathlon. Over 150 clubs including Choirs, Orchestra, Coding, Drama, Eco Schools, Battle of the Bands, and Nutty Scientists. Competitive teams participate in BISAC, TISAC, and FOBISIA.

Campus located in T77 Sukhumvit 77. Facilities include an Olympic-sized swimming pool, FIFA regulation football pitch, 415-seat auditorium, Recital Hall, fully equipped fitness centres, music practice rooms, art studios, science labs, computer rooms, libraries, recording studio, and multipurpose artificial grass sports fields. No boarding houses (day school only).

Student body

Total enrolment: Approximately 1,700 students (ages 3-18). Nationalities: Over 50 (53% Thai, 7% Chinese, 7% British, 5% South Korean, 4.5% Japanese, 3% Indian, 3% American, 2% Australian). Student-teacher ratio: 10:1.

Fee	Age	Type	Amount
Pre-Nursery (Half Day)	2	Annual	THB 295,000
Pre-Nursery (Full Day)	2	Annual	THB 370,000
Nursery	3	Annual	THB 575,930
Reception	5	Annual	THB 609,000
Year 1 - 2	5	Annual	THB 682,500
Year 3 - 4	7	Annual	THB 703,500
Year 5 - 6	9	Annual	THB 719,250
Year 7 - 9	11	Annual	THB 756,000
Year 10 - 11	14	Annual	THB 808,500
Year 12	16	Annual	THB 821,100
Year 13	17	Annual	THB 714,000
Assessment Fee		One-time	THB 5,000
Placement Fee		One-time	THB 30,000
Security Deposit		One-time	THB 60,000
Registration Fee (Year 7 - Year 12)		One-time	THB 110,000
Registration Fee (Early Years - Pre-Nursery, Nursery, Reception)		One-time	THB 120,000
Registration Fee (Year 1 - Year 6)		One-time	THB 160,000

A-level results are the most consistent benchmark. The 2023 international A-level table circulated on the international teachers forum put A*-A grades at 44%, well below Brighton College Bangkok at 80% and Harrow Bangkok at 59%.
Family experience is generally positive. Parents and r/Thailand describe a workable commute from Thonglor and Sukhumvit, a strong primary campus, and a friendly community in a family-heavy housing area.
A teacher on the international teachers forum described the school as an excellent community and very family friendly.
The same forum carried a sharply critical post in late 2024 alleging students used drugs in restrooms, exam retakes were monetised, and administrative response was weak; this is a single anonymous account and is not corroborated.
Salaries place the school in the second tier of Bangkok internationals according to teacher posts: roughly 98-133k baht plus housing.
One student in r/highschool described it as the best four years of their life; an unrelated thread surfaced bullying worries from a prospective family.

Duncan Stonehouse