International School Waiting Lists in Brussels: What Families Need to Know

For families relocating to Brussels, the question of international school availability is often more pressing than the question of school quality. Brussels's schools are well regarded; the problem is getting in. Waiting lists at the European Schools in particular have become one of the defining challenges of expat life in the Belgian capital, and even the independent schools carry capacity constraints in certain year groups.

Understanding the waiting list landscape before you move is not pessimism — it is essential planning.

The European Schools: A Structural Capacity Crisis

The four Brussels European Schools — EEB1 (Uccle), EEB2 (Woluwe), EEB3 (Ixelles), and EEB4 (Laeken) — collectively educate thousands of children, predominantly the children of EU civil servants. Each school is large: EEB3 enrolled over 3,200 students in recent years, and EEB4 over 3,180. The EU institutions have grown substantially over the past two decades, and the school network has not kept pace.

The consequences are significant:

Category I and II: Priority Access, But Not Unlimited

Even EU institution employees (Category I) and affiliated organisation staff (Category II) are not always guaranteed their preferred campus or language section. The Brussels Enrolment Authority assigns families to campuses based on available capacity, and popular language sections — particularly the English section — can be oversubscribed, resulting in some EU families being assigned to a different campus than they requested, or occasionally being placed in a language section other than their preference.

Category III: A Practical Near-Impossibility for New Arrivals

For families who are not EU-affiliated, the situation is stark. Category III places are released only after all Category I and II demand at each school has been satisfied. In practice, this means:

• The primary pathway to a Category III place in 2026 is through a sibling already enrolled at the school. The official policy as of 2026–2027 enrolment is that Category III links to the enrolment portal are only sent to families with a sibling already attending that school throughout the current year and continuing the next.
• Families without siblings enrolled face extremely uncertain waiting times. Reports from expat communities suggest waits of two to five or more years are not uncommon at popular language sections.
• Even families who apply immediately upon learning of a Brussels posting frequently do not receive Category III offers before their assignment ends.

The practical implication: If you are not an EU institution employee, plan your Brussels schooling around ISB, BSB, St. John's, or the Lycée Français Jean Monnet. These are outstanding schools in their own right. Apply to the European Schools as well, but do not make your family's schooling contingent on receiving an offer.

A Fifth Campus Is Coming — But Not Immediately

The EU and Belgian authorities have plans for a fifth Brussels European School (EEB5), to be built on the former NATO site in Neder-Over-Heembeek. Originally targeted for around 2028, the opening has since slipped, with the Secretary-General of the European Schools indicating it is now unlikely before late 2030. The project has been repeatedly delayed over the years, so any timeline should be treated with caution. Even once open, it offers no help to families arriving in Brussels in the immediate term.

Waiting Lists at BSB and ISB

The British School of Brussels (BSB)

BSB in Tervuren operates waiting lists for certain year groups. Secondary year groups — particularly Years 7 to 10 (ages 11–15) — are the most competitive. Early Years and primary typically have more availability, and sixth form (Years 12–13) sometimes has capacity as families depart Brussels mid-assignment.

BSB advises families to apply as early as possible. Applications submitted in the October–February window ahead of a September entry usually have the best outcome. Mid-year availability does arise as other EU and NATO families leave Brussels, but cannot be guaranteed.

The International School of Brussels (ISB)

ISB's most competitive year groups are Grades 5–9 (roughly ages 10–15). The school runs a formal waiting list and will contact families when places arise. The application fee is €2,000, only partly refundable in limited circumstances, so families should be reasonably confident about ISB before submitting.

For ISB, applying in the preceding September–January for a September start gives the best chance of securing a place. ISB does accept mid-year applications if places exist.

St. John's International School, Waterloo

St. John's tends to have more availability than ISB or BSB in most year groups, partly because of its more suburban Waterloo location. Waiting lists do form in some senior secondary years, but families applying six to nine months in advance rarely face significant difficulty at St. John's.

Strategies for Families Facing Waiting Lists

Apply broadly and early: Submit applications to two or three schools simultaneously. The application fees are real costs, but they are trivial compared with arriving in Brussels with no school place secured.

Join multiple waiting lists: If your first-choice school is full, take a place at your second choice and join the first-choice waiting list. People leave Brussels regularly — mid-year vacancies occur throughout the year.

Use the school bus route as a guide: When choosing a temporary home while waiting for a preferred school, check that you are within the bus network of your preferred school. This makes a transition easier if a place arises mid-year.

Communicate your timeline clearly: Tell each school's admissions team your expected arrival date. Schools can sometimes time an offer to coincide with your move, which is easier than switching schools mid-term.

Consider a temporary Belgian school placement: In some cases, particularly for younger children, a short stint in a local French or Dutch-medium Belgian school while waiting for an international school place is feasible and can accelerate language acquisition. This is not right for every family, but can be an option for children under about age eight.

For the European Schools specifically: If you have any EU institutional connection — even indirect — explore whether it qualifies you for Category II status. Some international organisations have bilateral arrangements with the European Schools that families do not always know about. Ask your HR department.

Year Group Difficulty Ratings

This table is a general guide based on typical Brussels demand patterns; actual availability varies each year.

School	Easiest Year Groups	Hardest Year Groups
BSB	Early Years, Lower Primary, Sixth Form	Years 7–10 (ages 11–15)
ISB	Preschool, KG	Grades 5–9 (ages 10–15)
St. John's	Most year groups	IB Diploma years (15–18)
European Schools (Cat. III)	All year groups very difficult	All year groups very difficult

How Global Investments Can Help

Being unable to confirm a school place before your move creates real estate decisions that are more complicated than they need to be. Many families end up choosing a home that suits their interim school but not their long-term preferred school. Global Investments advises internationally-mobile families on the full relocation picture — including how to structure housing decisions to keep options open while school applications are in progress.

Contact our team to discuss your Brussels move, or read our guide on applying to international schools in Brussels for the step-by-step process.

Waiting list positions and admissions policies change frequently. All information is correct as of 2026 to the best of our knowledge. Verify with each school directly. This guide does not constitute legal or financial advice.