The presented results focus on the key contribution of the nonstructural components to the lateral dynamic behavior and dynamic properties, which include the fundamental natural frequency, damping, and mode shapes. The former property is influential largely in determining the intensity of the earthquake loading to which a building is subjected, based on the frequency content of the input ground motions. Damping indicates the extent to which the structure has the capability to absorb the vibrational energy induced by dynamic inertial loads as caused by the earthquake. The mode shapes indicate the interaction effects between the various assemblage components.