The authors present the peculiarities of evaluating the parameters (module, direction and coordinates of the application point) of the displacement vector of the object’s deformation mark, its stabilitydegree is to be evaluated, and on this basis technologies simplifying the processes of performing field work necessary to obtain relevant information are discussed. Various options to implementpolar spatial intersection during observations from fixed stations are considered. In particular, if there aren’t any connecting marks between the instrument’s standing points, it is proposed to use a remote target or measure directional angles (magnetic azimuths) of reference directions. Methods for obtaining the coordinates and displacement vectors of deformation marks in the same coordinate system are considered, depending on the implementation of the polar spatial intersection. An example of implementing the proposed observation methodology on the example of the Hydrocorpus-1 building located at 29 Polytechnicheskaya st., St. Petersburg, Russia is presented. The results obtained indicate the correctness of the proposed methodology.