Improved Air Quality - A lot of the indoor air quality problems identified in new structure result from elevated moisture levels in the farming materials. Because the modular construction is substantially finished in a factory-controlled setting utilizing dry materials, the potential for high levels of moisture being trapped inside the new structure is removed.
Ability to service remote locations. Particularly in countries where prospective markets might be found far from industrial centers, such as Australia, there can be much higher costs to build a site-built house in a distant area or an area experiencing a building boom like mining cities. Modular buildings are also beneficial in providing sanitary and medical facilities where time, space, and money are an issue.
Indoor construction. Assembly is different from weather, which may boost work efficiency and avoids damaged construction material.
Modular buildings are argued to have benefits over traditional buildings, for a variety of factors.
Speed of construction/faster return on investment. Modular construction permits for the building and the site work to be completed simultaneously. According to some substances, this can reduce the total completion schedule by up to 50%. This reduces labor, financing and oversight expenses. To save time and money, nearly all design and engineering disciplines are a part of the manufacturing procedure. During site-built construction, walls can't be placed until flooring are set up, and ceilings and rafters can't be added till walls are erected. On the flip side, with modular structure, walls, flooring, ceilings, and rafters are all constructed at precisely the same time, and then brought together in the same factory to form a building. This procedure can enable modular construction times of half that of conventional, stick-built construction.
Low waste. With the very same programs being continuously built, the manufacturer has records of precisely what amount of substances are needed for a given job. Together with the consistency, builders can design systems which use common lengths of lumber, wallboard, etc.. cut items with maximum efficacy, or be able to order exceptional spans in bulk. While waste from a site-built dwelling may typically fill several large dumpsters, building of a modular dwelling generates much less waste. As stated by the UK group WRAPup to a 90% decrease in substances can be accomplished through the use of modular structure. Materials minimized contain: timber pallets, shrink wrap, cardboard, plasterboard, wood, concrete, bricks, and cement.
Modular construction can also give an edge in similar classes from the International Green Construction Code.
Flexibility. An individual can continually add to your modular building, such as producing high rises. When the needs alter, modular buildings can be disassembled and the modules emptied or refurbished to their next use reducing the requirement for raw materials and minimizing the total amount of energy expended to create a construction to meet the new demand. In essence, the entire building could be recycled in some cases.
Environmentally friendly building process. 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. 
Quality. Combining traditional building methods, quality manufacturing and third-party agencies who provide arbitrary inspections, testing, and certification solutions for quality management, commercial modular structures are built in strict accordance with appropriate local, state, and national rules and regulations. Due to the requirement to transport modules to the last website, each module has to be constructed to independently withstand traveling and setup prerequisites. Thus the final module-to-module assembly of independently durable elements can yield a last product that is stronger than site-built constructions. Modular buildings often utilize Structural Insulated Panels (SIPs) in construction, which provide a range of advantages over traditional building materials. SIPs panels are a mild yet lasting mix of panel board and closed-cell polyurethane (PU) or expanded polystyrene (EPS) insulation. They're air-tight, and as such provide exceptional thermal performance. They also offer exceptional moist and cold resistance when compared to wood and other substances, and are immune to both compression decreasing and cold bridging.  Modular units might also be designed to fit in with outside aesthetics of any present building and modular units after constructed can be virtually indistinguishable from a site-built structure.