International School of Brooklyn

ISB's main campus is at 477 Court Street, Brooklyn, NY 11231, with reception and mailing at 192 Luquer Street, Brooklyn, NY 11231. ISB is located in Carroll Gardens, a historic Brooklyn neighborhood with a small‑town feel; Court Street features cafés, parks, shops, and restaurants, including French- and Spanish-speaking businesses.

Pre-K 3–8th Grade

Independent, non-profit day school

44 nationalities represented; 23 languages spoken at home.

Learning Support; targeted language support for English, French, and Spanish; social‑emotional and behavioral support; counseling; School Nurse.

France (affiliated with AEFE and Mission laïque française)

Secular

ISB is open from 8:00am to 6:00pm daily. Pre-K 3 and Pre-K 4: 9:00am–3:00pm. Kindergarten to 5th Grade: 8:30am–3:30pm. Middle School (6th–8th Grade): 8:45am–3:45pm (zero period 8:15am–8:45am). Early drop-off starts at 8:00am for Kindergarten–5th Grade and 8:20am for Pre-K 3–4; Campus opens to Middle School at 8:15am. After School programming until 6:00pm.

Bus service within about four miles; stops include Bed‑Stuy, Boerum Hill, Brooklyn Heights, Clinton Hill, Cobble Hill, Crown Heights, Downtown Brooklyn, Gowanus, Kensington, Park Slope, Prospect Heights, Prospect Lefferts Gardens, Prospect Park South, South Slope, Windsor Terrace.

ISB is an IB World School offering the Primary Years Programme (PYP) for Pre-K 3 through 5th grade and the Middle Years Programme (MYP) for 6th through 8th grade, with immersive language programs in French and Spanish. The Preschool–Lower School are accredited by the French Ministry of Education, while the full program is accredited by the Spanish Ministry of Education, and the curriculum incorporates New York State standards within an IB framework. The IB emphasises inquiry-based learning and multilingualism, helping students develop global understanding. Language learning occurs in authentic cultural contexts with instruction by native speakers.

Enrichment class offerings are available for PK3–5th grade.

The school provides social-emotional and behavioral support. The Counseling Team collaborates with teachers and parents to design strategies, which may include behavior plans, brief counseling sessions, or connections to outside resources such as formal evaluations or therapeutic support. Affinity and alliance groups are offered across the school to support identity development, strengthen self-esteem, and foster affirmation, confidence, and resilience.

A Collaborative Student Support Team partners with classroom teachers to identify strengths and needs and to design strategies that promote growth across academic, social, and emotional areas. The school works with a School Consulting Psychologist and a network of outside providers, including SETSS, occupational therapists, speech-language pathologists, and clinical psychologists, to provide comprehensive support for each student.

Targeted language support offers extra help for students acquiring a new language, whether English, French, or Spanish. This support typically takes place throughout the Lower School and focuses on developing the language skills needed to engage fully in ISB's bilingual learning environment. French- or Spanish-speaking students who are new to English can be accommodated in Pre-K 3 to 5th Grade.

Mental wellbeing is addressed through social-emotional and behavioral supports; the Counseling Team collaborates with teachers and families to develop strategies, and may include brief counseling, behavior plans, or connections to outside resources as needed.

Gender policy and hate speech policy codify safety, affirmation, and support for all members of the ISB community, with an accountability model for incidents.

Welcome to International School of Brooklyn.
1. Schedule a tour of the school. Parents and guardians meet ISB's administration, learn about the bilingual program, and have the opportunity to ask questions. Tours are for parents/guardians only; children do not attend.
2. Submit the online application for the 2026-2027 school year. Applications open September 2, 2025, and the deadline to submit is December 8, 2025. Supplemental materials, such as teacher reports and transcripts, are due by January 8, 2026.
3. Language considerations. For Pre-K 3 to Kindergarten, applicants from all language backgrounds are welcome; for 1st to 5th Grade, applicants should speak, read, and write in French or Spanish at grade level, with a language assessment part of the application. Middle School offers options for students starting or continuing French or Spanish, and all students must be fluent in English to enter Middle School.
4. Admissions visits. Parent interviews are typically conducted for Pre-K4 to 5th Grade; student visits occur for 1st to 8th Grade, during which language assessments and/or writing exercises may be completed; a weekend playgroup is offered for Pre-K 3 to 5.
5. Recommendations. The current teacher should submit the teacher recommendation form, ideally after November 1, for the 2026-27 cycle; the form is due by January 8, 2026.
6. Fees, entry points, and waivers. Fee waivers are available for families facing financial hardship, for those who applied last year, or for families affiliated with Early Steps and Prep for Prep programs. Entry points include Preschool (Pre-K3, Pre-K4, Kindergarten) and 6th Grade, with occasional admission to other grades; siblings are given special consideration but not guaranteed.
7. Notification and next steps. ISB follows ISAAGNY notification dates; Pre-K3 and Pre-K4 notifications occur February 26, 2026; Kindergarten on February 5, 2026; 1st–8th Grade on February 11, 2026. After notification, families proceed with enrollment, transportation, and other arrangements.

ISB offers a tuition assistance program to support enrollment across income levels. In 2023-2024 ISB granted more than $2.9 million in tuition assistance. In 2024-2025, over $3 million in tuition assistance was awarded, reaching about 30% of ISB's student body. Families applying to all grades may submit a separate application for tuition assistance through Clarity.