Marina Singapore International School will offer families in northern Bangkok a more affordable route to international education, with tuition expected to be 30% to 40% below the fees at its established SISB campuses.
The new Marina Singapore School will be the seventh campus operated by Singapore International School of Bangkok (SISB), Thailand’s largest publicly listed international school group.
Located in Rangsit, Pathum Thani, the school is scheduled to open in August 2027. It will initially welcome younger pupils, with plans to expand its year groups progressively.
The launch comes as Thailand’s international school sector faces increasing competition. For families, the new campus could provide access to an international education without the higher fees associated with some established schools in central Bangkok.
Marina Singapore School Targets Families Seeking More Affordable International Education
SISB is introducing Marina as a separate school brand rather than extending its existing campus network under the flagship SISB name.
The distinction reflects a different fee structure and target audience.
Annual tuition at SISB’s established campuses currently ranges from approximately THB 500,000 to THB 600,000. Marina’s fees are expected to be 30% to 40% lower.
Based on these figures, families could expect annual tuition of approximately THB 300,000 to THB 420,000, equivalent to around US$8,500 to US$12,000.
However, these figures are indicative estimates rather than a confirmed published fee schedule.
The new school will be located along Rangsit-Nakhon Nayok Road in Pathum Thani. It forms part of a wider residential development and aims to serve families living in northern Bangkok and surrounding communities.
For parents, the location could reduce the need to travel into central Bangkok for an international school education.
New Campus Will Initially Welcome Nursery and Primary Pupils
Marina Singapore International School is designed to accommodate up to 1,200 pupils.
According to SISB’s campus announcement, the school will initially accept children from Nursery 1 to Primary 4 when it opens in August 2027.
Further year groups will be introduced progressively, with the longer-term plan extending through to Grade 12.
The school is expected to provide an educational pathway combining Singapore and British educational approaches, with further progression into internationally recognised qualifications.
This phased approach means families should check the availability of individual year groups when considering applications.
The project involves an investment of approximately THB 400 million, reflecting SISB’s expansion into a different segment of Thailand’s international education market.
Why SISB Is Expanding Into Pathum Thani
Pathum Thani, particularly the Rangsit area, has become an important residential destination north of Bangkok.
The location gives SISB access to families outside the central areas where its existing campuses operate.
Unlike Bangkok’s established international school districts, Rangsit offers an opportunity to serve local Thai families seeking international education closer to home.
The separate Marina identity also allows the group to introduce a different fee proposition without changing the positioning of its existing schools.
For parents, this could mean more choice in an area where access to international education has traditionally involved travelling towards central Bangkok.
Thailand’s International School Market Faces Growing Competition
Marina’s launch comes as Thailand’s international school sector expands faster than its student population.
According to Kasikorn Research Center, Thailand had approximately 280 international schools in 2026, compared with 234 in 2022.
School numbers increased by around 5.3% in 2026, while student enrolment grew by 3.8%.
Furthermore, average enrolment per school declined from approximately 312 pupils in 2024 and 2025 to 307 in 2026.
The research centre expects this figure to fall further to 304 in 2027.
Bangkok accounts for more than 45% of the country’s international schools, making competition particularly strong in the capital.
The figures suggest that operators must consider affordability, location and educational quality when attracting families.
For parents, the growing number of schools could create more opportunities to compare curricula, facilities and fees before making an admissions decision.
What Marina’s Launch Means for Families
Marina Singapore International School introduces another option for families seeking international education in Thailand.
Its lower expected fees could appeal particularly to Thai households that want an international curriculum but find established premium schools financially challenging.
However, affordability is only one consideration when choosing a school.
Parents should also assess the curriculum, teaching provision, facilities, class sizes, admissions arrangements and future availability of year groups.
As a new campus, Marina will also need time to establish its academic reputation and build its school community.
Ultimately, its success will depend on whether it can combine more accessible tuition with a consistent standard of education as it expands.
For families in northern Bangkok, the August 2027 opening could bring a new international school option closer to home.
