Imagine a place where work, leisure, and relaxation come together seamlessly
Welcome to SQUARE 42, a 21,850 m² architectural masterpiece in the heart of Belval. Developed by Atenor Luxembourg in partnership with CORES Development, SQUARE 42 sets new standards for sustainable office spaces, particularly with its innovative wooden structure.
Enjoy a meal at a premium restaurant, stay active in the fitness area, or collaborate in vibrant coworking spaces. And when you need a break, the rooftop oasis offers breathtaking views.

Sustainability and wellbeing
Square 42 is in harmony with Atenor’s policy to develop office space that meets the highest environmental and comfort standards. With its roof garden, terraces, a vast patio and green spaces and a calm atmosphere, Square 42 has been designed to offer companies and their employees far more than just offices.
The technical facilities will ensure, without the use of any fossil fuels, energy efficiency and comfort to users, in accordance with the European Taxonomy and the carbon footprint reduction objectives set by the European Commission by 2030-2050. Square 42 also aims to achieve the BREEAM Excellent and WELL Gold certifications.

With the permit received, delivery is set for 2027. SQUARE 42 isn’t just a building; it’s a vision for a sustainable, thriving future.