Building surveying forms the basis for any thorough documentation of a building, its structural relationships, construction condition, and planned construction measures. It captures the building in its complex form with appropriate detail and, if necessary, in a deformation-accurate manner. It is an essential component of building documentation in the context of renovation, modernization, or repurposing of a building, as well as in construction investigations for scientific purposes in building research and preservation efforts. Building surveying methodically combines manual measurement with geodesy, photogrammetry, and laser scanning. The author provides a comprehensive overview and practical knowledge on the subject of building surveying. The fundamental methods of manual measurement, geodesy, photogrammetry, and laser scanning are complemented by the management of measurement products related to buildings.