This study investigates a 3D digitization workflow for post-WWII wooden houses during their demolition. The process generates a 3D model, incorporating assembly information and assigning unique identifiers to each component. The study establishes a database of components by connecting the identifiers and assembly information with 3D scan data. The study also proposes a solution for 3D scanning conventional wooden components that lack distinguishable features by placing markers around the periphery to serve as new reference points. This method facilitates the preservation of historical value and encourages the reuse of materials and the adoption of innovative building system expression techniques.