This research deals with a new science that covers all aspects of our life, e specially the engineering aspects, including the materials and methods of construction and finishing, which is nanotechnology. The rapid development of scientific researches led to the discovery of many sciences and also the appearance of nanometers due to the discovery of the microscopic tunnel microscope , which achieved direct interaction with atoms that appears Nanotechnology with its properties, methods of preparation and its various forms, where nano technology products has proved to be applicable and has a great economic return in all fields which can not be limited because of their rapid growth and development. As its products depending on the best using of such technology such as the glass which is self - cleaning glass , heat - resistant, anti bac teria, anti fog and many other building materials. The application of nanotechnology in the construction field is one of the most important application of green architecture which achive sustainability through improving the properties of materials to achi eve conservation of resources, recycling, non - destruction wich also achive environmental goals.