Modular construction is a building method where structures are made from pre-fabricated sections, or modules, that are constructed off-site in a factory. These modules are then transported to the construction site and assembled to create the final building. This approach can save time and reduce waste, as many components are built in a controlled environment. This technique is often used for various types of buildings, including homes, schools, and hotels. By using modular construction, projects can be completed more quickly and efficiently, while also allowing for greater design flexibility and customization.