This architectural project concerns the restoration and vertical extension of the historic Kollas Warehouses, located at the intersection of Othonos Amalias, Pantanassis, and Agiou Andreou streets in the heart of Patras, Greece. Originally built before 1908, this stone masonry warehouse is a notable example of early 20th-century industrial architecture, now undergoing a thoughtful adaptive reuse process.

​

The design restores the existing single-story structure—preserving its load-bearing stone walls, wooden window frames, and street-facing façades—while adding two new levels to accommodate a modern healthcare program. The project will host a chronic dialysis unit, a microbiological diagnostics lab, and a physical rehabilitation center, distributed across two independent functional zones.

​

The new architectural volumes are designed with minimalist, linear forms and constructed on a detached internal steel frame, ensuring minimal interference with the existing envelope. A solar atrium is introduced at the building’s core, enhancing natural lighting, spatial clarity, and circulation flow.

​

The extension respectfully steps back from the perimeter walls, maintaining the visual dominance of the historical shell while establishing a clear dialogue between old and new. This approach not only highlights the value of preserving architectural heritage, but also demonstrates how contemporary architecture can revitalize abandoned buildings through sustainable and functional reuse