The main objective of this work was to present a successful stabilization action of a building structure in an active landslide. Firstly, history of the case and a FEM simulation explaining ensuing situation are presented. Then different structural measures to stabilize the whole system are discussed. The structural solution of the problem (pile system reaching solid rocky zone) is presented in more detailed way. The estimation of forces acting on the structure, caused by an unstable soil mass, being crucial for the design of stabilizing structure is described.