The design and construction of underground facilities in major cities in Vietnam, such as Hanoi and Ho Chi Minh city, have currently been expanded. Digging deep excavation pits for underground spaces or subway stations can lead to settlements of the surrounding buildings. Under the soft soils or water-saturated clay soils, the construction of underground spaces causes additional settlements to the surrounding soil mass. Therefore, it is necessary consider the technological settlement, which is the effect of the construction process of deep excavations, to forecast the total settlement of surrounding buildings. This study proposes an equation to predict the building subsidence due to the influence of deep excavation accounting the technological settlement.