Notable shortcomings and difficulties can be identified along the cultural-heritage value chain that can result in missed opportunities with respect to vulnerable cultural and architectural heritage, especially in the case of industrial architectural heritage. Shortcomings have been observed in the early documentation stage, which constitutes the foundation for subsequent processes. The objective of this article is to respond to this issue by presenting a research methodology for the documentation and analysis phase and demonstrate its application to an industrial architectural complex: “Nueva Cerámica de Orio.” This article describes the detailed study of the existing documentation through cross-referencing data from various sources. The application of this methodology facilitated the establishment of a general understanding of the heritage asset and its characteristic, providing a solid base for the development of the value chain.