NIKU documents buildings and structures using a combination of manual and digital methods, in addition to older survey drawings. The deliverable may comprise:

• Photo documentation, building description, condition assessment, and registration in databases.
• Main survey including plans, sections, detail drawings; as well as building history and alteration records.
• 3D models based on laser scanning and photogrammetry.
• Building drawings based on the scan.

A 3D model recreates the shape, structure, and textures of a standing building. The data may be used as a basis for project planning and manual labour when carrying out repairs, reconstructions, or rebuilds, or as a starting point for monitoring damage, degradation, and temporal changes. A 3D model is suitable for research purposes and as a point of reference.