Location
Bang Na and Samut Prakan
Language of Instruction
English
Yearly Fees 2026/27
Primary Grades 1-5: 624,860 THB
From 453,880 (Nursery N1-N2) to 698,290 (High Grades 9-12). Full fee table
Founded
2018
D-PREP, originally Didyasarin Preparatory International School, was founded in 2018 by Lady Didyasarin Tavedikul, a member of the family behind the American School of Bangkok's Sukhumvit and Green Valley campuses, giving this newer Bang Na-area school a direct family connection to one of Bangkok's more established American school operators.
The school combines American curriculum elements with the IB framework, giving families a blended pathway option rather than a purely single-curriculum program, an approach that echoes ASB's own combination of American standards with an IB Diploma option.
As a relatively new school, having opened in 2018, D-PREP does not yet carry the multi-decade track record of ASB or ISB, but its founding family's background in running American schools in Bangkok gives it institutional experience behind the scenes that a completely independent new school would lack.
Families considering D-PREP are often specifically weighing that family connection to the established ASB network against the appeal of a newer, smaller campus in the Bang Na area.
DPREP Bangkok fees 2026/27
Annual tuition in Thai baht, read from the school's own fee schedule on 18 September 2026.
| Year group | THB per year |
|---|---|
| Nursery N1-N2 | 453,880 |
| Kindergarten K1-K2 | 535,380 |
| Primary Grades 1-5 | 624,860 |
| Middle Grades 6-8 | 676,850 |
| High Grades 9-12 | 698,290 |
One-time fees at entry
- Application fee3,000
- Registration or entrance fee150,000
- Refundable deposit50,000
Charged on top of tuition
- Food and utilitiesCompulsory45,000 / yr
- Development fundCompulsory20,000 / yr
Not included
Lunch, English language support
Worth knowing: The 45,000 food and utilities charge covers all school-day food, workbooks, learning materials, two daytime field trips from K1 and accident insurance.
Source: DPREP Bangkok fee schedule. Fees change every year, so confirm with the school before you budget. What international school really costs in Bangkok