KA11 is a residential building in Sofia, Bulgaria. Located at a complex five-way intersection, it integrates into its vibrant surroundings, creating a dialogue between contemporary architecture and the area’s historic fabric. The titanium-zinc façade, inspired by a nearby church, serves as a bold anchor, blending with its context while standing out. Inside, eight bespoke apartments defy convention, offering personalized living spaces tailored to the unique needs of each resident.