Digitisation of the wooden maquette at Casa Buonarroti: a project never realised for the facade of San Lorenzo in Firenze.

This paper presents a study on Michelangelo Buonarroti's design for the unbuilt façade of the Basilica of San Lorenzo in Florence, preserved today in the form of a detailed wooden model at Casa Buonarroti. Through high-resolution photogrammetry and laser scanning, the wooden maquette was digitized to create an accurate and high-fidelity 3D model. This digital twin enables in-depth analysis of the compositional logic and proportional systems adopted by Michelangelo, while also serving as a foundation for immersive visualisation techniques such as Augmented and Mixed Reality. The study discusses the evolution of digital heritage documentation, highlighting the integration of advanced survey technologies and their application in research, communication, and cultural heritage valorisation. Furthermore, it examines the role of Artificial Intelligence in photogrammetric processing and proposes a methodological reflection on the future of digital workflows for architectural heritage. The project opens new perspectives for interpreting the unfinished façade, proposing strategies for virtual placement in its original urban context and stimulating broader reflection on historical and contemporary architectural dialogue.