The Basilica of Saint Chrysogonus in Rome. an integrated historical and 3d morphometric analysis

Rome embodies over two millennia of urban continuity. Historic churches in the city have undergoneextensive transformations, offering valuable insights into the evolution of construction techniques.However, tracing their development proves challenging due to limited early documentation and thecomplexity of the structures. This study tackles these challenges through a two-phase methodologythat combines an in-depth literature review with an integrated 3D survey. Spatial data of the lowerbasilica were gathered using the Structure from Motion method. The analysis was enhanced bycontour mapping, and a digital elevation model was created to assist in interpreting the architecturalstratification. The proposed approach facilitates a clearer understanding of the layered historicalarchitecture, despite limited access to certain areas. The Basilica of Saint Chrysogonus serves as acase study for this integrated diagnostic method, demonstrating the effectiveness of combininghistorical and morphometric data in reconstructing the architectural development of complexheritage sites.