OIS campuses, from September 2026
As OIS continues to evolve, our campus structure is designed to better support each stage of a student’s journey, while preserving what defines us: academic excellence, small class sizes, strong relationships and a student-centred approach.
From September 2026, learning will take place across three distinct environments, each intentionally shaped around the needs of different age groups.
A clear structure designed to support each stage of learning
OIS is set within a green, open valley where nature is part of everyday school life. At the heart of the campus sits a restored 17th century palace, combined with modern learning spaces that reflect our student-centred approach.
The Early Learning Centre provides a dedicated environment for our youngest learners, where care, play and discovery lay the foundations for future learning.
The Quinta Campus offers a nurturing environment, particularly suited to younger students, where strong foundations are built in a supportive and engaging setting.
From September 2026, Horizon Campus will welcome our senior students (Years 10–13). As the name suggests, it reflects a forward-looking approach, supporting independence, academic focus and preparation for life beyond school.
All campuses are located just 7 minutes apart, forming one connected community where students grow within environments designed for each stage of their journey.
Oeiras
- Our school is located in Oeiras, on land leased from the municipality. Oeiras is located about 15 minutes by car from Lisbon and the airport.
- Oeiras attracts a lot of high-tech companies as part of the initiative ‘Oeiras Valley‘.
Quinta Campus
- A ‘quinta’ is a Portuguese farm. The school quinta is a unique location, with lots of green space, a river and trees. It fits with our purpose of being a sustainable school.
- We are able to keep a variety of animals like donkeys and goats in our mini farm.
- We produce fruits and vegetables for social projects in our kitchen garden.
Outdoor Areas
OIS has a a basketball court, a football pitch and a Sports Pavillion, which we also use for outdoor events and assemblies. It’s also a superb venue for meetings and events.
There is a play area with trampolines where students can relax and have their lunch, and a swimming pool to cool down on hot summer days. We keep bees so students can learn about the role of insects in ecosystems and have hands-on experience of the ancient craft of apiculture. There is a lot of space for students to explore, with woodlands, meadows and tracks to walk along during lunch and break times.
Campus Buildings
- The pavilion is our latest building, which is used for exams and has several classrooms. It is made from sustainable materials and was designed to be low-impact and visually in-keeping with our natural environment.
- The Palace is a 17th century historical building that houses our library, administration, science labs, art and music rooms.
- The white/orange building contains our main assembly area for lunches, a small gym, classrooms and staff rooms, a cafeteria and the computer labs.
- The PYP building is a separate building that hosts students from Year 2 to Year 4.
- Other buildings include a historic chapel, a memorial garden and an historic pigeon loft.
Future Plans
OIS continues to evolve with the opening of our new Horizon Campus in September 2026, dedicated to students in Years 10 to 13.
Located just a few minutes from the Quinta, this new campus has been designed to support the final stage of the OIS journey, a time of greater independence, academic focus and preparation for university and life beyond school.
Set in a natural environment with open views across the surrounding landscape, the Horizon Campus reflects our commitment to sustainability, wellbeing and purposeful learning, continuing the values that define OIS.
This is a continuation of how we grow: thoughtfully, and always centred on our students.
