Centurion International School, Bangkok
511 4 อ่อนนุช 30 แยก 7 Khwaeng Suan Luang, Suan Luang, Bangkok 10250
For expat families who want British-curriculum structure without the five- or six-figure annual fees typical of Bangkok's larger international campuses, CISB punches above its price point. The trade-off is scale: this is a small community school, not a full IB pathway, so families planning for IGCSE or beyond will need a secondary plan. Worth a campus visit before committing.
Soi On Nut 30 Yaak 7 is a quiet residential offshoot from the main On Nut artery, and arriving at CISB feels more like pulling up to a neighbourhood compound than a large academic institution. The street narrows as it approaches the gate; low-rise Bangkok housing lines both sides, and the campus sits compact against that backdrop, distinctly smaller in footprint than the suburban international schools further east.\n\nThe school runs the English National Curriculum from age 2 through Year 9 (Key Stage 3), covering Early Years Foundation Stage, Key Stage 1, and Key Stage 2 with specialist teachers for ICT, PE, Fine Arts, and Thai Language alongside core subject staff. The head of school, Dr. J.C. Wagner Romero, leads a team of 30-plus staff. Class sizes are kept intentionally small, and the school positions one-on-one teacher attention as its central offering rather than breadth of campus infrastructure.\n\nThe Early Years section is where the outdoor provision stands out. Children from age 2 have access to a covered cycle track where the sounds of wheels on concrete and small-voice instructions carry across the yard, a paddling pool used in structured physical development sessions, and a sand area shaded from the midday heat. These three outdoor zones sit inside the campus rather than on a shared field, keeping the youngest students in a defined, supervised space throughout the day. The EYFS curriculum covers seven development areas including physical development, communication, literacy, mathematics, and expressive arts, with sessions moving between indoor classrooms and the outdoor zones depending on the programme slot.\n\nFees run from roughly 126,500 to 141,500 baht per year depending on year group, and the school's own pricing page notes that this covers tuition, a minivan transport service between home and school, meals and snacks, dress code items, and books. That all-in structure matters practically: most mid-range Bangkok international schools bill transport, meals, and materials separately, so the headline number at CISB is closer to a true all-in cost than comparable published figures elsewhere. The school day runs from 7:45 AM to 2:50 PM Monday through Friday, with Saturday morning sessions from 9 AM to 1 PM.\n\nAfter School Clubs extend the programme for families who need later pickup. The school does not currently publish IGCSE or A-Level pathways on its website, so families with secondary-age children or long Bangkok timelines should clarify the upper year group roadmap during admission.