Australian International School Bangkok - Soi 31 vs St. Mark's Australian International School

	A Australian International School Bangkok - Soi 31 Bangkok, Thailand	S St. Mark's Australian International School Bangkok, Thailand
Snapshot	Snapshot
Fees / year	Fees / year THB 393,200 - 520,000	Fees / year THB 285,650 - 453,100
Age range	Age range 4 - 18 years	Age range 4 - 16 years
Type	Type Co-educational	Type Co-educational
Curriculum	Curriculum Australian Curriculum, Cambridge (Secondary), Cambridge IGCSE, Cambridge International AS Levels, Cambridge A Levels	Curriculum Australian Curriculum, Cambridge IGCSE, Singapore Curriculum
Pupils	Pupils 800	Pupils 190
Typical class size	Typical class size 15	Typical class size 18
Instruction language	Instruction language English	Instruction language English
Opened	Opened 2002	Opened 1999
Bus service	Bus service Yes	Bus service No
Essentials	Essentials
Location	Location Australian International School Bangkok’s Soi 31 campus is nestled at 319 Sukhumvit Soi 31 in Bangkok’s Watthana district. It resides in a quiet, leafy residential area of central Sukhumvit, offering a calm environment while remaining well connected—taxis, BTS/MRT stations, and main road access are convenient. The campus shares proximity with the AISB Sports Centre and Innovation Centre and is just minutes away from the Soi 20 campus, connected by a supervised shuttle service, making transitions and shared activities easy.	Location St. Mark’s is situated on Rama 9 Road in the Suan Luang district of Bangkok, a growing area known for its residential and commercial mix. The campus lies within easy reach of major roads like Srinakarin and the Ramkhamhaeng area, and is close to Bangkok’s airport rail link and expressways. This makes it convenient for families living in eastern and central parts of the city.
Stages	Stages AISB operates a two-campus model: Soi 20 serves the Early Years (Nursery and Year 1), while the Soi 31 campus accommodates the full range from Foundation (Year 1) through to Year 12. This structure clearly distinguishes the youngest learners’ setting from older primary and secondary students, with most of the Foundation–Year 12 progression housed on Soi 31.	Stages The school serves students from Early Years, Primary, Lower Secondary, and Upper Secondary (IGCSE and AUSMAT).
School type	School type AISB operates as a day school.	School type The school is a co-educational day school with no boarding facilities.
Pupil nationality mix	Pupil nationality mix —	Pupil nationality mix —
Additional learning support	Additional learning support Support services include a structured EAL program with small-group and intensive options, along with a Learning Support department that provides personalized plans, assessments, and teacher collaboration. The Access and Inclusion teacher coordinates extra help with internal staff and external specialists as needed.	Additional learning support The school does not have publicly available information on their Additional Learning Support.
Country affiliation	Country affiliation While not formally affiliated with the Australian government, the school’s curriculum and identity are strongly influenced by Australian education.	Country affiliation St. Mark’s is officially partnered with the Western Australian Government to deliver the AUSMAT (Australian Matriculation) programme.
Religious affiliation	Religious affiliation The school has no religious affiliations.	Religious affiliation The school is a Christian institution and is a member of the Association of Christian Schools International (ACSI).
School day structure	School day structure At the Soi 31 campus, the school day begins at 07:30 for both Primary and Secondary students. Primary classes (Foundation to Year 6) finish at 14:00, while Secondary (Years 7–12) end at 14:50. Breaks and lunchtime are built into the timetable, with meals provided daily on campus. Early Years (Nursery to Pre-Kindergarten) are housed at the Soi 20 campus and follow shorter hours, but Foundation (from Year 1 onwards) transitions fully to Soi 31.	School day structure Kindergarten: 8:00 am - 1:00 pm (After-school care option ends at 3:10 pm) Pre-Prep to Year: 12: 8:00 am - 3:10 pm
Bus service details	Bus service details AISB provides optional transportation in partnership with Montri Transport, a well-established Bangkok school transport provider. The service is door-to-door and includes both a driver and an adult supervisor on every route. Terms and conditions for the service are available directly from Montri upon request. This option gives families flexibility and additional safety for young children.	Bus service details The school does not have publicly available information on their bus service.
Fees	Fees
Fee details	Fee details Application and Registration Fees * Application and Assessment Fee: THB 4,000 (non-refundable) * Registration Fee: THB 90,000 (one-time, non-refundable) * Sibling discounts: THB 10,000 off the registration fee for the second child; tuition fee discounts of 10% (second and third child) and 15% (fourth child). Annual Tuition Fees (with per-term breakdowns) * Foundation: THB 393,200 (Term 1: 184,000 \| Term 2: 128,100 \| Term 3: 81,100) * Year 1: THB 440,000 (206,700 \| 143,400 \| 89,900) * Year 2: THB 455,500 (213,900 \| 148,500 \| 93,100) * Year 3–4: THB 474,500 (222,800 \| 154,700 \| 97,000) * Year 5–6: THB 490,000 (230,100 \| 159,700 \| 100,200) * Year 7–8: THB 500,000 (234,800 \| 163,000 \| 102,200) * Year 9–10: THB 508,000 (238,600 \| 165,600 \| 103,800) * Year 11–12: THB 520,000 (244,200 \| 169,500 \| 106,300) A 5% discount is available when tuition for the full academic year is paid in advance. Other Fees * Education Resources: Foundation THB 9,000; Year 1 THB 11,000; Years 2–12 THB 15,000 * Camps (Years 7–9): THB 10,000 deposit, further charges invoiced separately * Meals: THB 25,340 annually * English as an Additional Language (if required): Regular THB 69,300; Intensive THB 104,500 annually * Transport: Door-to-door Montri bus (annual approx. THB 38,250–48,450 for return service, depending on zone). Inter-campus shuttle also available. * Uniforms: Primary items THB 350–600, Secondary THB 350–800, sports/swimwear additional. Billing and Payment Invoices are issued per term and must be settled two weeks before term start. Payments can be made via bank transfer, cheque, or credit card (2% local, 3.5% overseas surcharge). Late payments incur a 3% monthly penalty. Refunds Tuition fees may be refunded on a sliding scale if notice is given before or shortly after term start (up to 80% if withdrawn more than 15 days before). No refunds are given for meals, transport, EAL, after-school activities, or resource fees.	Fee details One-Time Fees (Payable Upon Enrolment) Application Fee: THB 7,000 (non-refundable) School Development Fee: THB 190,000 for Kindergarten to Year 9 (non-refundable) THB 60,000 for Year 10 to Year 12 (non-refundable) Security Deposit: THB 60,000 (refundable) Annual Tuition Fees (Inclusive of snacks, lunch, textbooks, language lessons, music programme, and insurance) Kindergarten: THB 285,650 Pre-Prep & Prep: THB 309,290 Year 1–6: THB 380,210 Year 7–10: THB 417,640 Year 11 ATAR Programme: THB 453,100 Year 12 ATAR Programme: THB 230,000 (only one semester charged) Other Fees (Per Semester) English/Maths (3 sessions per week): THB 30,000 Japanese: THB 9,000 Additional Music or Activity ECA (per activity): THB 6,000 Taekwondo ECA: THB 7,000 Robotics ECA: THB 10,000 Swimming ECA (2 times per week): THB 10,000 Afternoon Daycare: THB 9,000 Summer School: THB 40,000 IGCSE Examination Fee (per subject): THB 10,000 Discounts Sibling Discount on Development Fee: 2nd child: THB 30,000 discount 3rd child: THB 60,000 discount Annual Payment Discount: 1.5% discount for full tuition fee payment in one billing Late Payment Policy A late payment fee of THB 2,000 per invoice will be charged for overdue accounts. All tuition and related fees must be settled before the semester begins; otherwise, the student may be denied admission to class. Refund Policy and Payment Methods The school does not have publicly available information on their refund policy and payment methods.
Diving deeper	Diving deeper
Boarding arrangements	Boarding arrangements —	Boarding arrangements —
Uniform requirement	Uniform requirement —	Uniform requirement —
Food options	Food options —	Food options —
House system	House system —	House system —
Governance and ownership	Governance and ownership —	Governance and ownership The school is licensed by the Government of Western Australia Ministry of Education to deliver a Year 11 and 12 Australian Matriculation program. The WA School Curriculum and Standards Authority oversees the program's quality, and graduates receive the Western Australian Certificate of Education (WACE) and the ATAR.
Academics	Academics
Curriculum details	Curriculum details The Australian International School Bangkok (AISB) follows a pathway that combines the Australian Curriculum and the Cambridge International programme. In the Primary Years (Foundation to Year 6), the school uses Australian teaching approaches with a broad curriculum including English, Mathematics, Science, Humanities, Languages, the Arts, and Physical Education. In Lower Secondary (Years 7–8), students continue with the Australian Curriculum while also preparing through Cambridge Lower Secondary courses. In Middle Secondary (Years 9–10), students work towards the Cambridge IGCSE qualifications, which cover a wide range of academic subjects. The final stage, Senior Secondary (Years 11–12), offers the Cambridge AS and A Levels, providing internationally recognised qualifications for university entrance. Throughout all year levels, students also study Thai language and culture, with additional options in French, Mandarin, Japanese, and German for native speakers.	Curriculum details St. Mark’s offers a curriculum that combines the Australian education framework with international components. In the Early Years, the school prioritises foundational skills in language, social development, and cognitive growth through exploratory learning and creative activities. At the primary level, the Australian curriculum continues to guide subject learning, with a strong focus on numeracy, literacy, science, and multilingual education. Students receive instruction in English, Thai, and Mandarin. In the lower secondary years, students transition to the Cambridge IGCSE curriculum, which builds subject depth and academic rigour across core areas. In Years 11 and 12, students follow the Australian Matriculation (AUSMAT) programme in partnership with the Western Australian Government. This provides students with the Australian Certificate of Education and an ATAR score, allowing for direct university admission in Australia and internationally. The programme includes coursework in areas such as mathematics, human biology, and communication studies.
Student teacher ratio	Student teacher ratio —	Student teacher ratio —
Exam results	Exam results —	Exam results —
Higher education progression	Higher education progression —	Higher education progression —
Gifted and talented	Gifted and talented —	Gifted and talented —
Academic calendar	Academic calendar View document	Academic calendar View document
Wellbeing & support	Wellbeing & support
Social & emotional learning	Social & emotional learning At Soi 31 Secondary, Positive Education is built into the daily timetable, with regular sessions on bullying, resilience, goal setting, cyber safety and positive psychology led by teachers. Primary (Years 1–6 at Soi 31) delivers a Health & Wellbeing program that explicitly teaches social skills, resilience and optimism, with monthly assemblies reinforcing protective behaviours. The Secondary page further notes a scope-and-sequenced Positive Education curriculum taught regularly. School-wide Student Support Services emphasise personal growth and socio-emotional development alongside academics. These provisions apply to students educated on the Soi 31 campus (Foundation–Year 12).	Social & emotional learning The school does not have publicly available information on their Social and Emotional Learning.
Special educational needs (SEN)	Special educational needs (SEN) AISB provides Learning Support that includes targeted 1:1, small-group and in-class support, Individual Learning Plans, and collaboration with parents and teachers; these services are available to Soi 31 students. The Access and Inclusion program supports students with identified learning disorders (e.g., dyslexia) and, where appropriate, coordinates with external specialists such as speech and occupational therapists. Guiding principles include confidentiality and a strengths-based approach. The website describes SEN as support within AISB’s mainstream provision rather than a specialist SEN school.	Special educational needs (SEN) The school does not offer any Special Education Needs support.
English as an additional language	English as an additional language There is a full-time EAL teacher on each campus, including Soi 31, who assesses learners, plans curriculum-aligned support with homeroom teachers and families, and exits students when they reach independent English proficiency. Provision includes Regular EAL (3 sessions/week) and Intensive EAL (5 sessions/week), each 45 minutes with a maximum of 6 students per class. Instruction starts with a focus on spoken language and progresses toward more written-like language as skills develop.	English as an additional language The school does offer English support.
Mental wellbeing	Mental wellbeing Primary students at Soi 31 receive explicit instruction in health literacy, emotional wellbeing and protective behaviours through the Health program and monthly assemblies. Secondary embeds Positive Education daily, addressing age-specific issues such as bullying and cyber safety. The Soi 31 Secondary Highfield building includes a Nurses Room and a Student Counsellor’s Room, supporting on-site wellbeing. Outdoor Education and service learning in Secondary further develop empathy, leadership and teamwork. Student Support Services frame socio-emotional development as a core element alongside academics.	Mental wellbeing The school does not have publicly available information on their Mental Wellbeing support.
Safeguarding	Safeguarding The school does not publicly disclose specific safeguarding or child protection policies on its website.	Safeguarding The school does not have publicly available information on their safeguarding policy.
Safeguarding policy	Safeguarding policy —	Safeguarding policy —
Facilities	Facilities
Facilities overview	Facilities overview AISB Sukhumvit Soi 31 Campus is a Foundation to Year 12 campus housed in a quiet, leafy residential area of Sukhumvit. The campus features modern learning spaces including classrooms, science laboratories, a woodwork workshop, and an Innovation Centre for creativity and collaboration. Students stay active in a Sports Centre, an undercover sports field, and a swimming pool. The dining area and a secondary student lounge provide spaces to relax and connect.	Facilities overview —
Sports facilities	Sports facilities The campus includes a dedicated Sports Centre, an undercover sports field, and a swimming pool.	Sports facilities —
Academic facilities	Academic facilities The campus offers modern classrooms, science laboratories, a woodwork workshop, and an Innovation Centre for creativity and collaboration.	Academic facilities The school offers a tri-lingual program in English, Mandarin, and Thai. The curriculum blends Western Australian and Singaporean approaches, with a Singaporean emphasis on Math and Science. The school runs an Advanced Program in Maths & Science with records in local and international Olympiad awards. The teacher-to-student ratio is 1 to 5, supporting individualized attention. Cambridge IGCSE results since 2017 show 30% A, 70% A/A, and 97% A*-C.
Extra curricular facilities	Extra curricular facilities The co-curricular program includes basketball, swimming, and badminton, along with band, dance, musicals and concerts, and chess.	Extra curricular facilities Violin at St. Mark's is offered as an ECA and helps students develop discipline, focus, listening skills, and teamwork through guided practice and ensemble playing. The English program develops reading, writing, speaking, and critical thinking with a balanced curriculum and interactive activities. The Technology program covers coding concepts, design, and problem solving to prepare students for higher education and future careers.
Parent experience	Parent experience
History	History AISB was founded in 2002 in Bangkok’s Sukhumvit area. The school now operates two campuses, with Soi 31 serving Primary and Secondary (Foundation/Year 1–Year 12) and co-located Innovation & Sports Centre facilities. Enrolment has grown to 800+ students representing many nationalities. In October 2024, AISB introduced a refreshed logo and visual identity to reflect its legacy and future direction. The school does not publicly disclose ownership or governance details on its website.	History St. Mark’s Australian International School was established in 1999. It is the first school in Thailand to offer an Australian international curriculum. The school operates in Bangkok and provides a bilingual and trilingual learning environment, offering instruction in English, Thai, and Mandarin. The curriculum structure incorporates both Australian and Singaporean models, particularly at the primary level, and leads into IGCSE and A-Level examinations in the upper years. The school has built partnerships with educational authorities in Western Australia and maintains close academic ties with Australian institutions.
Community	Community The community at AISB Soi 31 brings together students, parents, and staff from a wide mix of nationalities, reflecting Bangkok’s international character. The school emphasizes connection between families and teachers through regular communication, assemblies, and campus-wide activities. Students contribute to the community through leadership opportunities, service projects, and cultural programmes that highlight both Thai traditions and international diversity. Parent involvement is encouraged through committees, workshops, and open events that welcome families onto campus.	Community St. Mark’s serves a culturally diverse student body with representation from countries including Australia, the United Kingdom, Singapore, China, Japan, India, Brazil, and Thailand. The school offers a Christian-based educational setting and supports cultural fluency through language instruction and international awareness. Students engage in a range of academic and co-curricular activities, such as math competitions, arts events, and language-focused programs. The school also offers short-term exchange opportunities in Australia for selected students.
Parent teacher association	Parent teacher association AISB does not publish details of a formal PTA structure on its website, but it clearly emphasizes parent involvement across the Soi 31 campus. Families are engaged through parent committees that meet regularly and host informal gatherings, giving parents a way to connect with school leadership and with one another. The school also offers workshops for parents on topics such as student wellbeing, digital safety, and curriculum, ensuring parents are informed and included in their children’s learning journey. In addition, parents are invited to open days, assemblies, and school-wide events, strengthening the link between home and school. While the AISB website does not provide a constitution or officer list for a PTA, it presents parent engagement as an active part of the community life of the Soi 31 campus.	Parent teacher association The school does not have a formal Parent Teacher Association.
Extra-curricular	Extra-curricular
Academic & intellectual	Academic & intellectual AISB Sukhumvit Soi 31 Campus uses a dual Australian and British curriculum. Inquiry-based learning is embedded across Humanities and Science. STEAM is integrated across the curriculum, with formal classes in the Innovation Centre at the Soi 31 Campus. The Innovation Centre includes a Digital Technology and Robotics Laboratory, a Science, Engineering and Mathematics Laboratory and Makerspace (The Fab Lab), a Multimedia Centre, an Art and Design Technology Studio, a Food Technology Kitchen and Dining Space, The Innovation Hub, and a Music and Movement Centre.	Academic & intellectual The school offers Early Years through Secondary education with a curriculum based on an Australian framework. Lower Secondary uses Cambridge IGCSE and Upper Secondary uses the Australian Matriculation program, providing direct access to universities worldwide. The Australian Matriculation program lasts about a year and a half, and graduates receive the Western Australian Certificate of Education (WACE) and ATAR for university admissions. The curriculum emphasizes language and STEM, supported by dedicated teaching staff and ongoing assessment.
Arts & creative	Arts & creative Co-curricular activities include music and visual arts. The music program includes singing, dancing, and playing instruments; it provides public performances and concerts and offers one-on-one private lessons with music teachers. Art fosters expression through art making with a range of mediums. STEAM is an integrated program supported by the AISB Innovation Centre.	Arts & creative —
Cultural & language	Cultural & language Thai language and culture is compulsory for Year 1–2 and continues through the year groups in various forms. Other languages offered include French and Mandarin for all students, with Japanese also available to native speakers in later years; languages are taught with varying frequency (twice per week). In Years 3–8, Thai remains compulsory; other languages include Japanese, Mandarin, French and Thai. In Years 9–12, Thai remains compulsory (IGCSE Thai available for native speakers); Japanese, Mandarin and French are also offered.	Cultural & language The school teaches English, Mandarin, and Thai through a tri-lingual program. The English, Mandarin, and Thai language curricula are integrated across the year levels, with instruction delivered primarily in English and additional language study in Mandarin and Thai. The program aligns with the Australian framework while incorporating Singaporean approaches to mathematics, science, and Mandarin.
Social & hobbies	Social & hobbies The Co-Curricular program includes chess, music, art and swimming as structured activities. The After School Activities Program (ASA) offers a variety of options such as gymnastics, chess, basketball, football, cooking, swimming and more.	Social & hobbies —
Community & service	Community & service —	Community & service —
Leadership & professional	Leadership & professional AISB has a Leadership Team led by the School Director, with Heads of Early Years, Primary and Secondary, and a Head of STEAM. An Enrichment Programme is coordinated by the Enrichment Programme Coordinator to support student development.	Leadership & professional —
Lifestyle & wellbeing	Lifestyle & wellbeing The campus features a Sports Centre, undercover sports field and swimming pool, with a daily physical education program and swimming lessons. The school values wellbeing, community, respect, personal best, integrity and global outlook. The After School Activities Program (ASA) includes activities such as gymnastics, chess, basketball, football, cooking, swimming and more.	Lifestyle & wellbeing —
Language provision	Language provision
Language provision	Language provision Thai Language & Culture is compulsory for all students. In Year 1–2, French and Mandarin are offered to all students, and German and Japanese are offered to native Thai speakers, with other languages taught twice per week. In Years 3–8, Thai remains compulsory and students are divided into native and non-native Thai classes; Japanese, Mandarin, French and Thai are offered, with other languages taught twice per week. In Years 9–12, Thai remains compulsory (once per week) and Thai native speakers may choose Thai first language via IGCSE; other languages offered are Japanese, Mandarin and French.	Language provision The school teaches a tri-lingual program in English, Mandarin, and Thai across Early Years through Secondary. The main medium of instruction is English, while Mandarin and Thai are taught daily as second/third languages.
Bilingual teaching	Bilingual teaching —	Bilingual teaching —
Immersion programs	Immersion programs —	Immersion programs —
Reputation	Reputation
Awards	Awards The school does not provide any publicly available information regarding awards it has received in the past five years.	Awards Excellence in Education Awarded by OPEC The Office of the Private Education Commission (Thailand) recognized the school for its contributions to private education in Thailand.
Accreditations	Accreditations * Council of International Schools (CIS): AISB is a CIS Member School, which means it adheres to global standards for international education in areas such as teaching, governance, and student welfare. * Cambridge Assessment International Education: AISB is a registered Cambridge International School, allowing it to deliver Cambridge qualifications such as IGCSE, AS and A Levels. * WIDA International School Consortium: Membership provides AISB access to internationally recognised English language proficiency assessments and resources. * International Schools Association of Thailand (ISAT): Membership links AISB to a national body representing accredited international schools in Thailand. * Australian International Schools Association (AISA): This connects AISB with other Australian curriculum schools globally, sharing best practices and support. * ONESQA (Office for National Education Standards and Quality Assessment, Thailand)": Accreditation by Thailand’s national quality assurance agency, ensuring the school meets government education standards. * BMAS Music Academy Partnership: AISB partners with BMAS for performing arts and music provision on campus, though this is more a collaboration than an accreditation. * Macquarie University (Australia): The school lists Macquarie as an affiliate, likely reflecting educational collaboration or training partnerships.	Accreditations Accredited by the Western Australian Government St. Mark’s is the first international school in Thailand to be formally recognized by the government of Western Australia. It is authorized to deliver the Australian Matriculation (AUSMAT) program, providing pathways to universities in Australia and globally. Member of ACSI (Association of Christian Schools International) The school is a member of ACSI, reflecting its alignment with global standards for Christian international education.
Admissions	Admissions
Admissions	Admissions 1. Initial Inquiry and Campus Visit Families begin the admissions process by contacting the school directly or visiting the Soi 20 Campus. Parents are encouraged to tour the campus, meet staff, and discuss the suitability of the program for their child’s age group (Nursery to Year 1). 2. Application Submission An application form must be completed and submitted with the required supporting documents (such as passport copies, previous school reports if applicable, and medical records). At this stage, a one-time application is payable. 3. Assessment (if required) For certain year groups or based on the recommendation of the Head of School, an assessment may be required. This incurs an additional assessment fee. The assessment ensures that the child’s needs can be supported effectively within the program. 4. Offer of Placement Once the application and any assessments are complete, the school will issue an offer of placement if a place is available. Parents must then pay the non-refundable registration fee to secure the child’s enrolment. 5. Enrolment and Orientation Tuition fees must be paid before the child begins classes. Enrolment is confirmed only when the first term’s fees have been received in full. Orientation details are provided to help families and students settle into the school routine.	Admissions School Visit Schedule a Visit:Parents must book a tour before applying. Purpose: This visit allows families to discuss their child’s educational needs with the Admissions Office, explore the school’s curriculum, and tour the campus facilities. Visiting Hours: Monday to Friday, 8:00 AM – 2:00 PM Application and Assessments Application Form: Once a family decides to proceed, they schedule an appointment to: Submit the application form Provide required documents Pay a non-refundable application fee of 7,000 THB Student Assessments: During this visit, the school evaluates the child’s age-appropriate skills in: English Mathematics Mandarin (where applicable) Placement Decision: Based on assessment results, the school determines appropriate class placement. If needed, the school may recommend placement in a lower year level or identify learning support needs. Enrollment Finalization Principal Review:The school principal reviews the full application and assessment outcomes. Notification: Admissions will inform parents of the decision within 7 days. In some cases, additional testing or interviews may be required. Fee Payment: Once accepted, families must settle payment by the due date on the invoice. If not paid on time, priority will be given to other applicants.
Scholarships	Scholarships The school's Soi 31 campus does not publicly disclose any scholarships, other than sibling discounts.	Scholarships The school does not have publicly available information on their scholarships.
Waitlist	Waitlist The school does not publicly disclose information about a waitlist or pool system.	Waitlist The school does have waitlist. When Activated: If a class is full, families can opt to be placed on a waiting list. Booking Deposit: A refundable deposit of 50,000 THB is required to secure a place on the waiting list. Notification: The school will notify families when a space is expected to open. Priority: Waitlist priority is given to families who already have children enrolled at the school. Refund: The deposit is refundable upon written request, which also removes the child’s name from the waiting list.
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