Architectural documentation includes many tasks that give idea of architecture: to give spatial, historical, textual information, data about chemical content of building materials, etc. From architecture documentation tasks, the dissertation considers spatial – geometrical dimensions and visual – documentation of architecture. Object geometry is not only the parameter of documentation. All the specific options to create object as unique is with a purpose; all potential values – architecture, art, history, science and society – are parameters to consider. The aim of the work is to analyze and to find optimal architecture documentation technologies, summarizing 3D laser scanner and terrestrical photogrammetry results, and to provide for different methods achieved information merging for the establishment of highest entirety data group – for the analysis, computerized visualizations and easy renewable information for archiving needs. Application of 3D laser scanner technology for object spatial documentation of architecture has been investigated, and its result analysis on object accuracy and visualization have been done. Reduced data merging of digital terrestrical photogrammetry and 3D laser scanner technology has been done, that gives option to depict different method results in 3D environment with high visual resolution and perfect adjustment accuracy, including different graphical computer software combination.Photogrammetry and software packages of 3D laser scanner are investigated and combined application options of different software modules are found for posed task optimal solving. Information storing structure of object spatial documentation of architecture has been developed, for archiving and usage needs.