This thesis examines the restoration and adaptive reuse of the Prinkipo Greek Orphanage, designed by Alexander Vallaury between 1888 and 1900. As the second-largest timber structure in the world and the largest in Europe, the building faces significant challenges due to its extended state of abandonment. The research proposes a hybrid approach to dealing with the building’s state-of-the-art condition, which combines restoration, consolidation, selective demolition, and modern construction. The intervention proposes the restoration and consolidation of the northeast wing, the removal of the central axis and the southwest wing, and a new construction for the adaptive reuse project adjacent to the northeast wing.