The article is devoted to the substantiation of the content and regulation of organizational and technological measures to ensure biosferous construction and ecological and engineering protection of marine and river coastal areas during their development, taking into account the peculiarities of mechanical, hydrodynamic and seismic properties of soils. the method of modeling the stress-deformed state of the system "soil massive-holding engineering structures" under the influence of geodynamic loads is proposed and implemented, which allows taking into account the change in the parameters of organizational and technological reliability of construction in the local zones of the territories of the sea and river coasts. Methodical and applied recommendations for organization of effective mechanism of counteraction to destruction of landslide areas are given.