The H-BIM research project, known fully as ‘Heritage Building Information Modelling’, comprises an evolving methodology for architectural conservation that is data-led, transcending conventional documentation through the synthesis of geometric precision and rich historical, material, and semantic information into unified digital models. Rooted in the transition toward structured, data-driven processes, H-BIM enables a layered understanding of heritage buildings at key moments in their conservation histories, recording discoveries and interventions with unprecedented clarity and depth. Unlike traditional 2D drawings or fragmented archives,
H-BIM situates both measurable geometry and contextual narratives within a shared digital environment, supporting more informed decision-making, interdisciplinary collaboration, and sustained engagement among architects, conservators, and stakeholders.

The integration of semantic details – such as material composition, condition assessments, and documented interventions – augments the model’s capacity to act as a living repository of knowledge that can evolve as new research unfolds. In practice, the adoption of H-BIM responds to the growing demand for rigorous conservation processes that honour the complexity of heritage fabric while enabling strategic foresight in restoration and reuse. AP Valletta has developed H-BIM as a tool applicable to current, future and retrospective projects. The practice has used the software as a tool on significant projects such as the Manoel Theatre and St Paul’s Pro Cathedral, demonstrating how digitised, information-rich models can shape and refine interventions through iterative comparisons across time and technique. 
 

APFHF’s role within the H-BIM initiative will be to position digital heritage modelling not as a technical add-on but as an essential lens for reinterpreting, understanding, and sustaining the built legacies.