Nanotechnology is a growing discipline in research and developments. It engages scientists in involving themselves in the production of efficient nanomaterials and study of their performance. Nanotechnology has been majorly concerned about its contributions in the field of microbiology, medicine, electronic, chemical and material sciences. However, its involvement has been increasing in the field of construction. The objective of the study is to review the role of nanotechnology in civil engineering applications. It serves as a Phase Change Material (PCM) making it energy efficient. Nanoconrete enhances various properties with different nanomaterials. Nanotechnology in wood and glass improves the bond between the fibres. Nanotechnology in coating makes the surface easy to maintain and not to be spoiled by dirt. It has been found that the role of nanotechnology in the civil engineering discipline will definitely result in a new generation of construction materials with increased performance, strength, durability and other properties.