The increase in the number of personnel, weapons, military equipment, material and technical equipment stocks causes the need for quartering and placement of military personnel, the use of additional buildings and structures for housing, storage of combat and special equipment, material and technical equipment stocks, conducting combat and special training, implementation tasks of everyday activities, as well as for economic and other needs. The solution to this problem lies in the reconstruction of buildings and structures in the military unit. Taking into account the specifics of financial support, management and subordination of the military units of the NSU, the mechanism defined for civil legal organizations and individuals regarding the implementation of measures for the preparation of project and estimate documentation, the start of the construction process and its progress, the author's supervision and control of the progress of the reconstruction of buildings and buildings (other final construction works) in the military part of NSU has a number of differences. In the conditions of martial law, it is positive that the repair and construction works performed in the area of reconstruction of buildings and structures (other final construction works) in the military unit are carried out with the preservation of the elements of the load-bearing and enclosing structures, and under the condition of their autonomy, there is no need for the duration of the works suspension of the operation of the facility subject to reconstruction, which allows the barracks and housing fund, other buildings and structures of the military unit to be used for their purpose in the future. With the help of the proposed methodological recommendations, the head of the rear quarters and operational service will have the scientific and methodological apparatus necessary for the reconstruction of buildings and structures (other final construction works) to solve the issues of quartering personnel, placing weapons and military equipment, and storing supplies of material and technical means in the military unit.