Daylight and natural ventilation are the most important two factors to provide inner comfort, it doesn’t only affect the inner comfort but also the energy consumption. There is a rapid growth in the population in Cairo since 1950 as it was 2.5 million and in 2022 Cairo reached 21.8 million, while Turin during 1950 was 1 million and in 2022 the population is 1.8 million. The heigh population in Cairo affects the energy consumption, especially that the residential sector consumes a large portion of electrical energy generated in Egypt, also most of the energy consumed in Cairo is on the light and air conditioners, which can be solved with daylight and natural ventilation planning.