ISL at a Glance

Mission Statement

Our mission is to provide an outstanding education in a safe and caring international environment, inspiring all our students to reach their true potential and to act as responsible participants in a global society.

Brief History

ISL was founded in 1963 as the DuPont de Nemours Private School and reorganised as a non-profit organisation in 1972. The school was formerly known as the English Speaking School of Luxembourg, the American School of Luxembourg, the American International School of Luxembourg and was finally renamed the International School of Luxembourg in 1999, in recognition of its ever-increasing international student population and its international curriculum.

Typical Class Size and Student/Teacher Ratio

Typical Class Size

  • 16-18 students

Student/Teacher Ratio

  • 8:1

School Structure

The Lower School is divided into two sections.

  • the Early Years Programme includes the Preschool, Kindergarten and Grade 1 and serves children ages 3-7
  • the rest of the Lower School programme is delivered in Grades 2-5 and serves children ages 7-11

The Upper School comprises two divisions:

  • the Middle School includes Grades 6-8 and typically serves students ages 11-14
  • the High School which comprises Grades 9-12 and serves students ages 14-18

Faculty and Staff Size

The size of our faculty and staff is approximately 230, coming from over 24 different countries. The majority of our faculty hold a Masters and/or Doctorate degree. Our teachers are highly dedicated and loyal to our school, averaging 18 years experience in education and 8 years of commitment at ISL.

Student Body

Our student body counts over 1300 students representing close to 50 countries. On average, students remain enrolled at ISL for 3 to 5 years.


ISL currently offers state of the art facilities that allow us to create and implement the most dynamic Preschool-Grade 12 programme possible. Our 20,000m2 campus is located in the City of Luxembourg and offers the following facilities:

Lower School Building

ISL is building for the future. Our brand new Lower School building was inaugurated for the 2013-2014 school year. This includes:

  • 38 homerooms from Preschool to Grade 5 arranged in eight clusters throughout the building, 21 EAL or modern language rooms, a sizeable sports hall which can be divided into two halves, a state-of-the-art auditorium, an extensive library, media room, a multipurpose gym, large cafeteria, science room, cooking room, 3 music rooms, 2 art rooms, offices/administration spaces, external outdoor spaces for sports and recess.

Upper School Building

  • 88 fully networked classrooms, 3 libraries, 6 computer labs, 7 science labs, 4 art studios, 1 drama studio, 5 music rooms, 1 darkroom, 3 gymnasiums, 1 fitness centre, 3 cafeterias, 1 auditorium, 1 multi-purpose room, 1 full-sized football field and a spacious playground. ISL shares 25 metre and 50 metre Olympic swimming pools with our neighbouring schools on campus.

This exciting expansion project also included a refit of our current campus offering state of the art teaching and performance spaces uniquely designed to meet the needs of our Upper School students.

Higher Education and Career Counseling

With a team of Higher Education and Career Counseling staff dedicated solely to the task of helping students choose and gain admission to colleges, universities and other institutions of further education, ISL ensures each student finds the right match upon graduation. The Higher Education and Careers Office begins to work on an individualised basis with parents and students, beginning in Grade 10, and also assists with gap year planning and opportunities for work experience and job shadowing.

Language Philosophy, Programmes and English as an Additional Language (EAL)

In order to meet the needs of our international student body we run comprehensive programmes in English as an Additional Language (EAL) for English Language Learners in Grades PS-G9 as well as Modern Language programmes teaching all levels of French in Grades K-12 and German in Grades 6-12.

In the School Year 2017/18 Spanish has been introduced as a part of the Language acquisition programme. At the moment students can choose Spanish in the Middle School and as an ab initio Language in the IB Programme. All Languages offered follow the European Framework Curriculum. As part of the Cascade programme, Middle School students take also Luxembourgish Language and Culture classes to learn more about our host country.

We recognise the important role of the student’s first language in facilitating second language acquisition, cognitive growth and the student’s overall well-being. ISL, therefore, hosts a number of mother tongue programmes organised by various community groups whose goal is to further students’ growth and development in their native languages and cultures.

Learn more about:

Learning Support

Learning support is provided by specialist teachers across the school for students with mild learning difficulties in order to meet individual needs in accessing the curriculum.

School Hours

Lower School Timetable

TimeLower School: Preschool to Grade 5
08:00-08:25Playground supervision outside for Grades K2-5
08:00-08:25Early morning supervision for PS-K2
08:25School day begins for all students
12:00Preschool dismissal (for students on 1/2 day programme)
12:00 (Wednesdays only)Preschool, K1 & K2 dismissal
14:20 (Wednesdays only)Grades 1-5 dismissal
15:20 (Mon, Tue, Thu, Fri)K1-G5 & PS Afternoon Programme* dismissal.
*There is no Preschool Afternoon Programme on Wednesdays
 After School Childcare: Preschool to Grade 5
Every day from dismissal until 17:30On-site after school child care is available for all Lower School students and can be booked once your child is enroled at ISL

Upper School Timetable

TimeHigh School Daily Schedule
7:30 - 8:25Band Rehearsals
8:20Warning Bell
8:25 - 9:25Period 1 (60 mins)
9:25 - 9:30Break
9:30 - 10:25Period 2 (55 minutes)
10:25 - 10:45Break
10:45 - 11:45Period 3 (60 minutes)
11:50 - 12:45Period 4a (55 minutes)
12:45 - 13:30HS Lunch
13:25Warning Bell
13:30 - 14:30Period 5 (60 minutes)
14:30 - 14:35Break
14:35 - 15:30Period 6 (55 minutes)

TimeMiddle School Daily Schedule
7:30 - 8:25Band Rehearsals
8:20Warning Bell
8:25 - 9:25Period 1 (60 mins)
9:25 - 9:30Break
9:30 - 10:25Period 2 (55 minutes)
10:25 - 10:45Break
10:45 - 11:45Period 3 (60 minutes)
11:50 - 12:40MS Lunch
12:40 - 12:45Break
12:45 - 13:35Period 4b (50 minutes)
13:35 - 14:30Period 5 (55 minutes)
14:30 - 14:35Break
14:35 - 15:30Period 6 (55 minutes)

Transportation Options To and From School

The school does not provide transportation to and from school; however, many transportation options are available for students and families:

Private Transportation to School

Private Bus Routes (for a fee)

The Sales Lentz company offer a private paid door to door service. Sales Lentz offer a number of different bus routes for students in K2-Grade 12.

Glacis Bus Shuttle (free)

The Ville de Luxembourg shuttle bus runs daily from the Glacis to ISL in the mornings leaving at 7:55 and back in the afternoons leaving daily at 15:50 as well as a second bus at 14:40 on Wednesdays. The bus is free of charge and open to students in Grades 1 to 12.

Public Transportation to School

ISL recommend that students use the public bus transportation system in Luxembourg where possible. Public buses are an excellent way to commute to ISL from anywhere in the country at no cost. Check with your local commune for additional information and consult the school office to obtain a student bus card. The Park and Ride Bouillon is an arrival and departure point for city bus lines 1, 12, 15, 17 and 24. The Merl Conservatoire stop to the north end of the campus is an arrival and departure point for city bus 12. The 5 and 6 bus lines also stop within walking distance of the campus at the Place de France on route de Longwy.


Route Planner at

For further details on transportation options and resources, please refer to the guide we distribute to new parents.

Car Pooling

Parents are also encouraged to form car pools and to arrange for their older children to use public transportation.

Lunch Programme

The ISL Cafeteria in the Upper School, with catering provided by Eurest Luxembourg, serves breakfast, morning snacks and lunch every school day. Alternatively, students are welcome to bring a packed lunch from home.

The Upper School cafeteria provides both fixed menu and à la carte service for students in Grades 6-12 and staff. In addition to the menu, you will find a salad bar, fruit bar, soup and sandwiches. Students pay for their meals with their ID card which is linked to their families’ direct debit account. Charges are based on student selection.

Breakfast Hours: 07:30-08:45

  • Parents, students and staff are welcome in the Upper School cafeteria
  • Coffee, tea, juice, fruit, yoghurt, pastries and continental breakfast are available

Morning Snacks: 10:30-10:40

  • Open to staff and Upper School students only

Lunch Hours: 11:40-13:30

  • Open to students and staff only.
  • Students eat at designated times from 11:40-13:30.

Lower School students
select their lunch each morning. There is a hot menu with dessert, pasta, soup and/or sandwich option each day.  A mid-morning healthy snack is provided to all students from Preschool to Grade 4. Families pay for accumulated lunch expenses over a 2 months period through our parent authorized ISL Direct Debit School Life Account.

The Lower School cafeteria is open only to Lower School students for lunch only.

Parent-Teacher Organisation (PTO)

Parent-Teacher Organisation (PTO)

The PTO is an organisation of parents and teachers committed to celebrating the cultural diversity of its members, integrating families into the ISL community, supporting its teachers and furthering the educational life of ISL students through the effective action and leadership of its member volunteers. All ISL parents are automatically members of the PTO. The organisation is run by the PTO Executive Board, elected annually by the parent community.

Extra Curricular Activities

The school offers many extra curricular and after school activity programmes that take place during the school day (lunch time, recess time and free periods) as well as before and after school. These include: Sports, Performing Arts, Student Governance, Yearbook, Model United Nations and Supporting Charities.

In addition, the school hosts many community groups that offer after school activities for ISL students, including mother tongue language programmes.

Visiting our School

Visiting our School

We are delighted to offer a forty-five minute, pre-application tour of the International School of Luxembourg for families who are considering a move to Luxembourg and/or considering applying to our school.  In order to sign up for a pre-application tour, please click here to complete our online enquiry form.

International School of Luxembourg
Campus Geesseknaeppchen
36 Boulevard Pierre Dupong
L-1430 Luxembourg-Merl

GPS Coordinates: 49.6005, 6.1093

Please note that our postal address, 36 boulevard Pierre Dupong, does not actually correspond to our geographic location. From the pinpointed location on the Google Map or any navigational system map, head south to the end of boulevard Pierre Dupong. Turn right, and bear right around the circular glass Forum building in order to enter the unnamed slip road onto the campus. Continue to the end of the slip road where you will arrive at our main building.

Copyright © The International School of Luxembourg a.s.b.l.
36 Boulevard Pierre Dupong, L-1430 Luxembourg
Contact: Lower School (+352) 26 04 4300  |  Upper School: (+352) 26 04 40  |  F: (+352) 26 04 47 04

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