Indoor construction. Assembly is independent of weather, which can increase work efficiency and averts damaged construction material.
Low waste. With the very same programs being continuously built, the manufacturer has records of precisely what amount of substances are necessary for a specified job. Together with the consistency, builders can design systems which use common lengths of lumber, wallboard, etc.. cut items with maximum efficacy, or have the ability to order special lengths in bulk. While waste from a site-built residence may generally fill several large dumpsters, construction of a modular dwelling generates much less waste. According to the UK group WRAP, up to a 90% reduction in substances can be achieved through the use of modular construction.
Modular buildings have been argued to have advantages over conventional buildings, for a variety of reasons.
Speed of construction/faster return on investment. Modular construction permits for the building and the site work to be performed simultaneously. According to some substances, this can reduce the total completion schedule by up to 50%. This reduces labour, financing and oversight costs. To save time and money, the majority of engineering and design areas are a part of the production process. Also unique to modular construction is the ability to simultaneously construct a building's floors, ceilings, walls, rafters, and roofs. During site-built construction, walls cannot be set until floors are set up, and ceilings and rafters cannot be added until walls have been erected. On the flip side, with modular construction, walls, floors, ceilings, and rafters are all constructed at the same time, and then brought together in precisely the same mill to form a construction. This process can enable modular construction times of half an conventional, stick-built construction.
Environmentally friendly building process. The controlled environment of the factory allows for more precise structure when permitting the extra materials to be recycled in-house. 
Quality. Mixing traditional construction methods, quality manufacturing and third party agencies who provide arbitrary inspections, testing, and certification services for quality management, 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 website, each module must be built to independently withstand travel and setup requirements. Thus the final module-to-module meeting of independently durable elements can yield a last product which is stronger than site-built structures. Modular buildings often utilize Structural Insulated Panels (SIPs) in construction, which provide a range of advantages over traditional construction materials. They are air-tight, and as such provide excellent thermal performance. They also offer exceptional moist and cold immunity when compared to timber and other materials, and are immune to both compression decreasing and cold bridging.  Modular units might also be made to match in with outside aesthetics of any present construction and modular units after constructed can be almost indistinguishable from a site-built structure.
Ability to support remote locations. Particularly in countries where prospective markets may be found far from industrial centers, such as Australia, there may be a lot higher prices to construct a site-built house in a remote area or a place experiencing a building boom such as mining cities. Modular buildings can also be beneficial in providing sanitary and medical facilities where time, space, and money are a problem.
Modular buildings may also contribute to LEED conditions in almost any kind site-built structure may, and may even provide an edge in the fields of Sustainable websites, Energy and Atmosphere, Materials and Resources, and Indoor Environmental Quality. Modular construction can also give an edge in similar classes in the International Green Construction Code.
Improved Air Quality - Many of the indoor air quality issues identified in new construction result from high moisture levels in the farming materials. Because the modular construction is substantially finished in a factory-controlled setting using abrasive materials, the potential for high levels of moisture being trapped inside the new construction is eliminated.
Flexibility. One can add to your modular building, such as producing high rises. When the demands change, modular buildings can be disassembled and the modules relocated or refurbished for their next usage reducing the requirement for raw materials and minimizing the total amount of energy expended to create a construction to meet the new demand. Essentially, the entire building can be recycled in some instances.