2. Real estate development refers to the land development and housing construction carried out by enterprises engaged in real estate development in order to realize urban planning and urban construction (including the development of new urban areas and the reconstruction of old urban areas).
3. Real estate refers to land, buildings, inseparable parts fixed on land and buildings and various rights and interests attached to them. Real estate is also called real estate in economics because of its own characteristics, that is, the fixed position and immovability. There can be three forms of existence: the integration of land, buildings and houses.