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Instructs in Spanish, English, Italian, Portuguese
Fees ARS 5,069,400
Ages 3 - 18 years
Type Co-educational
Opened 1999
Bus Service No
Estela María Irrera de Pallaro
School Principal
Academic offering
Curriculum IB (PYP), IB (DP), Cambridge IGCSE
Taught languages English, Italian, Portuguese
Strengths Sport, STEM, Languages
Clubs Academic and Intellectual
Stages Early Years, Kindergarten, Primary School, Secondary School
Introduction
The Southern International School is an IB World School in Argentina offering the IB PYP and DP, and Cambridge IGCSE. The school serves students aged 3 to 18, delivering an international education in both Spanish and English. Founded in 1999, the campus provides a tranquil, nature-rich setting where families can feel secure and private while engaging in a curriculum. A long-standing, diverse teaching staff pursues ongoing professional development to support students as they grow autonomy and independence in a rapidly changing world. The curriculum emphasizes inquiry across disciplines, with science playing a central role and learning integrated across Mathematics, Physics, Chemistry, Biology, and Environmental Science in both languages. The school also emphasizes intercultural competencies and plurilingualism as outcomes, preparing students to participate confidently in diverse communities and global society. A sports program complements academics, with athletics, hockey, football, and volleyball among offerings, along with Family Day and Sports Day.
Au Dr. Ricardo Balbín km 31,500, C1884 Guillermo Enrique Hudson, Provincia de Buenos Aires, Argentina
The Essentials
Southern International School has instruction in Spanish, English, Italian, Portuguese.
Location
Autopista Buenos Aires-La Plata, Km 33.5, Berazategui, 1884, Buenos Aires Province, Argentina.
Stages
Initial; Primary; Secondary.
Type
IB World School.
Country affiliation
Argentina
Fees
Annual tuition at Southern International School ranges from ARS 5,069,400 for 2026/27.
Application fee
- The school charges an application/registration fee. The precise amount is published in the school's official fee schedule for the current academic year.
Tuition fees (by year group and billing frequency)
- Tuition is published as monthly installments for the academic cycle. Exact monthly amounts differ by year group (early years / primary / secondary / pre‑university) and are set in the official fee schedule for the current academic year. The school provides a full list of the monthly tuition amounts for each year group in its fee schedule.
Billing schedule and payment terms
- Tuition is billed as monthly instalments for the school year. The school requires adherence to the published due dates for each instalment. - The school requires families to pay by automatic debit from a bank account and recommends establishing direct debit (debit automatico) for regular payments. Parents may also make payments by deposit or bank transfer to the school's bank account; when doing so they must submit proof of payment to administration within the timeframe specified by the school. - Payments by e-cheq are accepted when made payable to “SOUTHERN INTERNATIONAL SCHOOL S.R.L.” Physical checks are not accepted by the school's administration. - Late payment carries consequences: the school may condition or restrict a student's attendance or continued enrolment in cases of arrears, in accordance with the published payment policy.
Boarding fees (where applicable)
- The school operates as a day school; boarding is not applicable.
Other costs and additional fees
- The school's formal fee schedule lists any additional charges beyond tuition (for example examination fees, extracurricular activities, travel or excursion fees, transportation, school materials, uniforms and similar items) and specifies which items are charged separately. The precise list of additional costs and their amounts is provided in the official schedule.
Refunds and withdrawal / refund information
- Refund, withdrawal and cancellation terms (including any non‑refundable amounts and the conditions for reimbursement) are specified in the school's official fee policy. These terms are set out in the fee schedule and the published payment policy.
Fee payment options (accepted methods)
- Automatic debit from a bank account (direct debit). - Bank deposit or bank transfer to the school's account (Banco Supervielle is listed as an option; payments made by deposit or transfer should be accompanied by scanned proof sent to administration). - e‑cheq issued to “SOUTHERN INTERNATIONAL SCHOOL S.R.L.” (electronic cheque). Physical paper checks are not accepted.
Administrative contacts for billing and payment matters
- Administration phone: +54 11 6194 3036. Admissions contact via WhatsApp: +54 11 6184 5920. The school address for administrative correspondence is Au. Buenos Aires - La Plata Km 33.5, Berazategui (C.P. 1884).
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Note on data availability: the school publishes a detailed 2025 fee schedule that contains the exact numeric amounts for application fees, monthly tuition by year group (per month and/or per term where applicable), specific charges for extras, refund policy details and the full payment calendar. The published fee schedule could not be extracted in full for numeric values at the time of this request; the statements above reflect the billing structure, payment methods and policies as presented in the school's official fee documentation.
Academics
Southern International School teaches IB (PYP), IB (DP), Cambridge IGCSE for students aged 3 to 18.
Curriculum
Southern International School develops students' diverse abilities through activities to enable them to function with complete autonomy and freedom in today's society. The experience gained from founding and developing a comprehensive educational project supported and encouraged teacher Estela María Irrera de Pallaro to undertake the creation of a new campus in 1999. It was built to enrich institutional objectives in a setting where families find peace, privacy, and a space in contact with nature. With a management and teaching staff committed to ongoing training, the mission is to educate students capable of integrating and interacting in an increasingly complex social environment, where they will need a multitude of tools to navigate successfully. The school has more than a quarter of a century of experience working with students to provide an education that goes beyond academics and aims to form well-rounded individuals.
Wellbeing
Social and Emotional Learning (SEL)
The school develops the students' diverse abilities through activities to enable them to function with total autonomy and freedom in today's society. The experience of founding and developing a comprehensive educational project supported and encouraged teacher Estela María Irrera de Pallaro to undertake the creation of a new campus in 1999. Southern International School was built to enrich institutional objectives in a place where families find peace and privacy and a space in contact with nature. With a management and teaching staff continually trained, the mission is to educate students capable of integrating and interacting in a social environment that is increasingly complex, equipping them with many tools to function successfully. The school has more than a quarter of a century of experience with students and draws on them to provide a demanding education that not only contemplates academic aspects but also aims to form well-rounded individuals.
Admissions
Admissions
Enrollment is open for Kindergarten (K1, K2, K3, K4, and K5), Primary, and Secondary. The decision to enroll your children in our institution is as important for parents as it is for the school, since it commits both parties to work together in the challenge of educating. Would you like to begin the admission process? Complete the enrollment form. This declaration has the status of a sworn declaration.
Family information Father Mother How long have you been employed? 0-5 years; 5-10 years; 10-15 years; More than 15 years Next
Student information School Campus you would enroll at: Islands International School, Northern International School, Southern International School
Applicant 1 Gender: Female; Male Grade level applying for: First grade; Second grade; Third grade; Fourth grade; Fifth grade; Sixth grade; Seventh grade; First year; Second year; Third year; Fourth year; Fifth year
Applicant 2 Gender: Female; Male Grade level applying for: First grade; Second grade; Third grade; Fourth grade; Fifth grade; Sixth grade; Seventh grade; First year; Second year; Third year; Fourth year; Fifth year
Applicant 3 Gender: Female; Male Grade level applying for: First grade; Second grade; Third grade; Fourth grade; Fifth grade; Sixth grade; Seventh grade; First year; Second year; Third year; Fourth year; Fifth year
Our school How did you obtain information about International Schools? Alumni; Recommendation from a family of the school; Recommendation from staff of the school; Location; Website; Social media
Additional information Siblings Do you have siblings not applying for admission? Yes; No How many? 0; 1; 2; 3; 4; 5
What type of school is Southern International School?
Southern International School is an IB World School in Berazategui, Argentina, offering the IB PYP, IB Diploma Programme, and Cambridge IGCSE for students aged 3 to 18.
Where is the school located?
The school is on the Autopista Buenos Aires-La Plata, Km 33.5, Berazategui, Buenos Aires Province, Argentina. The campus provides a tranquil, nature-rich setting.
What curriculum does the school follow?
The school delivers the IB Primary Years Programme and IB Diploma Programme alongside Cambridge IGCSE, in a bilingual Spanish-English international education framework.
When was the school founded?
Southern International School was founded in 1999 by Professor Estela María Irrera de Pallaro, who also founded Islands International School and Northern International School.
What is the school's approach to science?
Science is a fundamental pillar of the educational project. The school develops curious, flexible, and analytical mindsets, encouraging investigation, information processing, inference, and communication skills.
What sports are offered?
Sports are a fundamental pillar of education. The school encourages teamwork and healthy competition in a supportive environment that respects different abilities.
How do I apply?
Enrollment is open for Kindergarten (K1–K5), Primary, and Secondary. Complete the enrollment form online to begin the admissions process.
Is the school bilingual?
Yes, the school provides a multilingual international education in Spanish and English, developing intercultural competencies and preparing students for a globalised world.
What are the annual fees?
Annual fees are approximately ARS 5,069,400. Tuition is billed as monthly instalments for the academic cycle, with exact amounts varying by level.
