ABSTRACT This thesis presents an innovative approach to sustainable urban housing by utilizing Cross-Laminated Timber (CLT) in the design of a micro-housing complex in the Lion City II neighborhood of Brussels. Driven by the need for sustainable and affordable urban housing solutions, the project explores the architectural and environmental benefits of CLT within a modular construction framework. Influenced by the Kingspan Micro House competition and the C40 Cities challenge, the design prioritizes modularity and sustainability. The complex features several four-story building blocks, each containing eight units per floor, designed to foster community interaction through well-integrated communal spaces both within and between buildings.