International primary & secondary · On Nut
Wells International School
Wells International School’s On Nut campus serves Grades 1–12 in Bang Chak, with an American curriculum, AP and IB Diploma pathways, primary and secondary facilities, and university guidance.
Stages
Grades 1–12
Curriculum
American; AP and IB Diploma options
2026–27 tuition
THB 196,000–285,000 per semester
Lunch
THB 15,000 per semester, normally mandatory
Location
Sukhumvit Road between Sois 85–87
Overview
About Wells International School
Wells International School’s On Nut campus is at 2209 Sukhumvit Road between Sois 85 and 87, in Bang Chak, Phra Khanong. It serves Grades 1–12, with an American curriculum and senior options including Advanced Placement and the IB Diploma Programme. The primary curriculum uses US Common Core literacy and mathematics standards with inquiry across science and social studies. Senior students can discuss the Wells diploma, individual IB courses or the full IB Diploma with the school’s advisers. Facilities include science and computer labs, libraries, art and performing-arts spaces, sports courts and a swimming pool. The exterior photograph is from the school’s 2017 website archive; current campus appearance may differ.
Curriculum and pathways
Primary
The campus identifies Grades 1–5 as primary, with Common Core literacy and mathematics, thematic inquiry and specialist classes including languages, PE, arts, technology and Thai culture.
Secondary and senior routes
Wells’ On Nut campus offers secondary education through Grade 12. Its senior curriculum includes AP, individual IB courses and the full IB Diploma Programme. Ask which subjects and routes suit the student and are available in the current intake.
IB Diploma
The IB directory identifies Wells International School–On Nut Campus at 2209 Sukhumvit Road, school code 049345. Wells’ own Class of 2027 page covers its May 2027 examination cohort. The full Diploma and individual-course certificate routes have different requirements; contact the coordinator at ib@wells-school.com for guidance.
Student support
The Student Support Services team offers academic, social/emotional, university and career guidance for Grades 1–12. Parents can arrange appointments and ask about assessed language/learning support or external specialist referrals.
2026–27 fees
Tuition per semester
Grades 1–2:THB 196,000; Grades 3–4:THB 215,000; Grades 5–6:THB 233,000; Grades 7–8:THB 247,000; Grades 9–10:THB 270,000; Grades 11–12:THB 285,000. There are two semesters. The current joint Bangkok-campus schedule explicitly includes On Nut.
Entry charges
For Grades 1–12, the schedule lists registration THB 5,000, a one-time non-refundable campus development fee ofTHB 140,000, and a refundable THB 35,000 damage deposit. The deposit must be claimed within two years of withdrawal. Confirm the complete invoice and applicable family concessions.
Lunch and uniforms
Lunch is THB 15,000 per semester and normally mandatory; an alternative arrangement needs prior administration approval. The uniform list prices shirt/blouse, pants/skirt, PE shirt and PE shorts atTHB 750 each, with a THB 300 tie.
Support and buses
ESL/learning support, where applicable, is an additional grade-based semester charge; request the assessed quotation. Bus zonesA–D cost THB 26,000/30,000/33,500/37,500 round-trip or THB 19,000/22,000/25,000/27,500 one-way per semester. Ask about route availability and exam/optional activity charges.
Payments and refunds
Published terms include instalment surcharges and THB 200 per day for overdue payment. The stated refund scale is 80% before term,50% on days 1–21,25% on days 22–39 and none from day 40; ask which charges qualify, as the development fee is non-refundable. Obtain the complete policy before paying.
2026–27 calendar
Semester dates
Semester 1 began 10 August 2026 and ends 18 December 2026. Semester 2 begins 12 January 2027 and ends 18 June 2027. The published calendar has 185 school-in-session days, excluding summer term. Summer term is 21 June–23 July 2027.
Breaks and staff days
The calendar distinguishes pupil days, conferences, professional development and breaks when the office is open or closed. Confirm pupil attendance and the individual timetable with the campus, especially around public holidays.
Admissions and visiting
Contact On Nut
Call 065 005 0552 or 02 730 3366, or email wells85@wells-school.com to arrange a campus visit. Admissions enquiries are accepted throughout the year, subject to places and assessment. This is a separate campus from Wells Thong Lo, Bang Na and Chonburi.
Application and assessment
The published admissions procedure asks for an application and assessment before acceptance. Grades 1–2 have a basic-skills paper test; Grades 3–12 are listed for English and mathematics assessment, writing and interview. Ask for the current assessment format and suitable grade placement.
Documents
The school requests family identity documents, prior academic reports, photographs and a certified medical check-up, plus any applicable Thai house registration or additional requested records. Confirm the current checklist with admissions.
Visitor entry
The 2026 handbook asks visitors to sign in at the main entrance, obtain a badge and arrange staff meetings in advance. Ask about parking, step-free routes and specific access requirements. Campus facilities are for school use; public drop-in access should be arranged with the school.
Practical information
Check the latest operating details with the venue before travelling.
Opening hours
- Monday
- 07:00–17:00
- Tuesday
- 07:00–17:00
- Wednesday
- 07:00–17:00
- Thursday
- 07:00–17:00
- Friday
- 07:00–17:00
- Saturday
- 08:00–12:00
- Sunday
- Closed
Campus hours from the 2026 handbook: Monday–Friday 07:00–17:00 and Saturday 08:00–12:00. These are not pupil lesson hours. Maps instead lists weekdays 07:30–16:30 and weekends closed. General admissions lists weekdays 08:00–15:30 and weekends by prior arrangement; confirm On Nut appointments. Sunday closure follows Maps.
Times shown in Asia/BangkokContact and directions
2209 Sukhumvit Road, between Sois 85–87, Bang Chak, Phra Khanong, Bangkok, Bangkok, 10260, Thailand
Wells International School map
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