The development of residential buildings, the solution for high-density urban living. With all the industrialization and urbanization in the world today, population explosion has become a problem. serious problem. Research indicates that the more developed a country is, the worse it will be (Jensen, 1966). To gain more living space in this situation, architects are trying to build high-density apartment buildings instead of traditional houses. This mission will first explain the development of apartment buildings and then demonstrate some of its applications in densely populated urban areas. Finally, it will conclude with an evaluation of his contributions in the field of architecture and sustainable environment. To begin with, it is necessary to clarify what the definition of a residential building is. An apartment is an independent accommodation which occupies only part of a building. Such a building can be called a residential building. (Wikipedia, 2013) Apartments began appearing all over the world in the early 19th century. In the 20th century, apartment divided into different types such as studio, garden apartment, two-story apartment and facilities. However, the different types of apartment buildings aim for the same objective, which is to solve the problem of population explosion. According to the population explosion theory, after the start of the industrial revolution, the population growth rate began to increase at a faster rate. alarming speed. By the end of the century, the world's population was estimated at just under a billion. At the turn of the 20th century, the world population was approximately 1.6 billion. By 1940, this figure had risen to 2.3 billion. The problem of overcrowding has attracted many people...... middle of paper...... light breezes in summer can also be disruptive to neighboring buildings. Finally, living in an apartment building could lead to problems with sound insulation and privacy. the greatest technological achievements of the last century. Reference: Jensen, R 1966, High Density Living, Leonard Hill, London.Pont, MB and Haupt, P 2010, SPACEMATRIX: Space, Density and Urban Form, NAi Publishers, Rotterdam.Safdie, M 1966, Habitat, a design for a high density urban living, Cement and Concrete Association, London.Wikipedia, 'Apartment', 2013/12/2, < http://en.wikipedia.org/wiki/Apartment>Wikipedia, ' Public housing estates in Tai Po ’, 2013/12/2,