Flexibility. One can add to a modular construction, such as creating high rises. When the demands alter, modular buildings may be disassembled and the modules emptied or refurbished to their next use reducing the demand for raw materials and minimizing the amount of energy expended to make a building to meet the new demand. In essence, the whole construction can be recycled in some instances.
Improved Air Quality - Many of the indoor air quality issues identified in new structure result from elevated humidity levels from the farming materials. Because the modular construction is substantially completed in a factory-controlled setting utilizing dry materials, the prospect of elevated levels of moisture being trapped inside the new structure is removed.
Low waste. With the same plans being constantly built, the producer has records of precisely what amount of materials are needed for a given job. Together with the consistency, most builders can design systems that use common lengths of lumber, wallboard, etc., cut items with maximum efficiency, or be able to order special lengths in bulk. While squander from a site-built dwelling may typically fill several large dumpsters, construction of a modular dwelling generates much less waste. As stated by the UK group WRAPup to a 90% reduction in substances can be accomplished through using modular construction. Materials minimized contain: timber pallets, shrink wrap, cardboard, plasterboard, wood, bricks, concrete, and cement.
Modular construction may also provide an edge in similar categories in the International Green Construction Code.
Ability to support remote locations. Especially in countries in which potential markets might be located far from industrial facilities, such as Australia, there can be a lot higher prices to construct a in-house property in a remote area or a place experiencing a construction boom like mining towns. Modular buildings can also be beneficial in providing sanitary and medical facilities at which time, space, and funds are an issue.
Quality. Mixing traditional construction methods, quality manufacturing and third-party agencies who offer arbitrary inspections, testing, and certification solutions for quality control, commercial modular structures are built in strict accordance with appropriate local, state, and national rules and regulations. On account of the need to transport modules to the last site, each module must be built to independently withstand traveling and setup requirements. Thus the final module-to-module meeting of independently durable components can yield a last product which is stronger than site-built structures. Modular buildings frequently use Structural Insulated Panels (SIPs) in construction, which offer a range of benefits over traditional building materials. SIPs panels are a mild yet lasting mix of board and closed-cell polyurethane (PU) or expanded polystyrene (EPS) insulating foam. They also offer exceptional moist and cold immunity when compared to wood and other substances, and are immune to both compression shrinking and cold bridging.  Modular units may also be made to fit in with outside aesthetics of any present construction and modular units once constructed can be virtually indistinguishable from a site-built construction.
Environmentally friendly construction procedure. Modular construction reduces waste and site disturbance compared to site-built structures. The controlled environment of the factory allows for more precise structure when allowing the extra stuff to be recycled in house. 
Modular buildings have been argued to have advantages over traditional buildings, for many different factors.
Indoor construction. Construction is independent of weather, which may increase work efficiency and avoids damaged building material.
Speed of construction/faster return on investment. Modular construction permits for the construction and the site work to be performed concurrently. According to some substances, this can reduce the overall completion schedule by as much as 50%. This also reduces labour, financing and supervision costs. To save time and money, nearly all engineering and design areas are part of the production procedure. During site-built construction, walls cannot be placed until flooring are set up, and ceilings and rafters cannot be added till walls are erected. On the flip side, with modular construction, walls, flooring, ceilings, and rafters are all built at the same time, and then brought together in precisely the exact same mill to form a building. This process can enable modular construction times of half an conventional, stick-built structure.