The Egyptian National Project (Decent Life) is a presidential initiative by Mr. Mohamed Abdel Fattah El-Sisi, President of the Arab Republic of Egypt, to develop the Egyptian countryside. The Decent Life Initiative is compatible with achieving the Sustainable Development Goals (Egypt 2030). Its goals include rebuilding buildings that do not achieve environmental security and achieve the foundations of construction and the human dimension in society, including the Al-Atween Mosque, the oldest mosque in Al-Saha Al-Radwan area in Luxor Governorate. The presence of a pulley to draw water from the groundwater reservoir before fresh water reaches the area is important evidence of its antiquity. The study aims to conduct an environmental assessment and geotechnical examination of deterioration manifestations such as deformation of the floors, walls and columns of the mosque, resulting from climatic factors such as humidity, and manifestations of corrosion in concrete and iron resulting from structural defects such as replacing the foundation soil, in addition to evaluating cracks according to the Saudi expert system that works to evaluate the types of cracks, their causes and methods of treatment. Then, achieving structural safety for the sustainable construction of buildings adopted by the Decent Life Initiative to replace them, including reinforcement operations according to the Egyptian code, increasing the depth of the replacement layer, good insulation of the foundations, and reinforcement with stones and marble.