Documentation is a key step for cognition of cultural heritage, and also a requisite for conservation and adaptive reuse actions. Petroleum reservoir of Mashhad (constructed in 1925) was documented by means of Drone images. The photogrammetric documentation was aimed at provision of 3D models and as a dataset for the creation of BIM models. These data-enriched models could be used on Digital Twin platforms for monitoring and operational purposes, a concept that is becoming increasingly relevant in the field of cultural heritage conservation. The discussion of this process demonstrates that the dense matching of drone images may generate centimetre-level precision and can provide a proper basis for BIM and Digital Twin platforms. The capability of this system will help the community in sustainable development in order to preserve the monuments and determine the appropriate urban use in heritage buildings.

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