Prefabricated Modular Housing
Prefabricated modular housing is a building form that involves the industrial production of building components and their assembly on-site. It offers advantages such as short construction periods, controllable quality, energy efficiency, and environmental protection, and has seen significant development in both domestic and international markets.
Definition and Types
Prefabricated modular housing, also known as pre-cast housing or prefabricated assembled buildings, involves breaking down a building into independent modules. These modules are fully prefabricated in factories, including ceilings, floors, and plumbing and electrical systems, and then transported to the site for assembly. The main types include panel-assembled, box-assembled, and frame-assembled structures, with modular buildings representing a higher level of integration achieved through standardized design for efficient assembly.
Construction Advantages
- Construction Period and Cost: Industrial production significantly shortens the construction period. For example, a public housing project in Shenzhen, Guangdong, adopted prefabricated technology, reducing the completion and delivery time from 2.5-3 years to 1 year, and cutting on-site labor by about 50%, resulting in substantial reductions in labor costs.
- Quality Control: Standardized production in factory environments ensures component precision, reduces human errors, and enhances the overall quality stability of the building.
- Environmental Benefits: On-site construction noise and dust are reduced by about 70%, and construction waste emissions are decreased by over 60%. Additionally, it alleviates traffic congestion, aligning with trends in green building development.
- Maintenance Convenience: Modular design facilitates later maintenance and upgrades, such as the independent replacement of plumbing and electrical systems, extending the building's service life.
Development History and Market
China's prefabricated concrete technology began in the 1950s, initially used for factory and residential construction, and saw a resurgence in the 21st century due to environmental demands. Companies like Vanke Group have developed assembled shear wall residential structural systems, promoting technology popularization. Significant growth in overseas markets: From 2015 to 2025, China's prefabricated building exports nearly tripled; in the first four months of 2026, exports of movable houses from the Guangzhou Customs area reached 1.4 billion yuan, a year-on-year increase of 38.1%, with a first-quarter growth rate as high as 45%, indicating strong international demand.
Application Cases
The Shenzhen public housing project achieved construction period compression and environmental goals through prefabricated technology, serving as a domestic model case; in overseas markets, Chinese-made prefabricated houses, leveraging their cost-effectiveness, are widely used for temporary housing, schools, and commercial facilities in Southeast Asia, the Middle East, and other regions.
