La tecnología BIM gana terreno en diferentes disciplinas ajenas a la obra nueva. Es el caso de los levantamientos arquitectónicos de edificios patrimoniales, metodología conocida como HBIM (Historic Building Information Modeling). Con esta herramienta, que facilita el levantamiento arquitectónico, se obtiene un modelo de información del bien con menor error y mayor exactitud que el realizado con tecnologías convencionales. Con el elevado grado de información que permite esta metodología, se realiza el modelado de diferentes fases históricas de la iglesia de La Sang de Llíria de la que no existen representaciones gráficas tridimensionales hasta la fecha. Se utiliza como base una nube de puntos obtenida con escáner láser. La intención es involucrar el uso de herramientas BIM en la datación y representación de fases históricas del bien, exponer sus ventajas en la obtención de simulaciones de las fases, datarlas dentro de un periodo concreto y relacionar la información.

The conservation of architectural heritage poses significant challenges in buildings characterised by complex construction sequences, cumulative transformations and fragmented documentation, where traditional methods are insufficient to coherently integrate geometry, historical information and stratigraphic analysis. This study proposes and applies a multitemporal Heritage Building Information Modeling (HBIM) workflow aimed at reconstructing and managing the historical evolution of architecture, using the Church of La Sang in Llíria (València, Spain) as a case study characterised by the superposition of Islamic, Gothic and contemporary phases. The methodology combines documentary and archaeological analysis, in situ stratigraphic observation and high-resolution terrestrial laser scanning as the geometric basis of the HBIM model. Historical phases are integrated as structural components of the information model, with explicit documentation of interpretative hypotheses and associated levels of reliability. The results show that the proposed approach enables the identification and reinterpretation of spatial and constructive relationships not previously described, the critical assessment of existing historical hypotheses, and the generation of coherent three-dimensional reconstructions even in contexts with incomplete information. The resulting documentary archive facilitates diachronic comparison of phases, ensures traceability of constructive elements and supports the production of reliable graphic and analytical documentation, establishing itself as a valuable tool for historical research, heritage management and the planning of future conservation interventions.