This project for the Benut de Overruimte competition addresses the Netherlands' housing crisis by adding compact homes of 30 m2 and 50 m2 onto existing flat rooftops. Lightweight steel with a copper-like finish references traditional red brick while remaining recyclable and low-maintenance. Solar panels ensure energy self-sufficiency. Green roofs, pergolas, and bee-friendly planting restore urban biodiversity. A continuous promenade with integrated bench niches fosters neighbourhood cohesion. Applicable to any flat-roofed building, anywhere.