Thesis
Brussels' European Quarter is on the cusp of transformation. The city is eager to introduce residential uses and diversify the area, presenting "shared visions," compelling imagery, and feasible plans. However, the evolution of such a hyper-specific district cannot occur overnight. Historically, the quarter has undergone three major transformations over the past 200 years: the founding of the Quartier Léopold, its erosion in the 20th century, and the failed Urbain Loi project. Now, it faces a fourth transformation—one that must be understood as an ongoing process rather than a finite, definitive outcome. This shift demands a synergetic counterprogramming approach to vacant buildings, emphasizing contrast with the surrounding environment as a guiding principle.

Programmatic Approach
The first design layer focuses on a programmatic counterproposal to the monofunctional office-centric nature of the surrounding buildings. The aim is to facilitate highly heterogeneous uses, creating a stark contrast with the existing environment. By addressing existing and projected patterns of use, gaps are filled, mitigating temporary vacancies. Temporal overlaps in usage interweave to form a cohesive whole, setting the stage for the quarter’s transformation from a monotonous office district into a vibrant, multifaceted neighborhood.

Structure
Preserving and adapting these buildings serves as a counterpoint to the recurring "standard solution" of demolition and redevelopment. The existing office typology, while offering significant spatial potential (approximately 15,400 m²), also presents challenges, such as deep floor plans (18m), low ceiling heights (2.65m), and a load-bearing façade. These constraints define the framework for the design intervention, emphasizing repair and adaptive reuse over demolition, fostering a sustainable and innovative approach to urban regeneration.