Chinese Prefabricated Housing

Chinese prefabricated housing is a form of architecture where building components are industrially produced and assembled on-site, encompassing prefabricated concrete structures and steel structures. It offers advantages such as short construction periods and controllable quality, and has been widely applied in both domestic and international markets.

Development History

Chinese prefabricated concrete technology originated in the 1950s, initially used for factory and residential construction. In the 1970s, driven by the policy of "three modernizations" in construction, technical systems such as large-panel structures and box structures were formed. In the mid-1980s, the technology stagnated due to cost and quality issues, but it revived in the 21st century due to its production efficiency and environmental advantages. Companies like Vanke Group developed prefabricated shear wall residential structural systems and applied prefabricated frame technology in projects, such as the Nanjing Jindi Yufang project, which adopted a prestressed prefabricated concrete assembled integral frame structural system.

Types and Characteristics

Main types include panel-assembled, box-assembled, and modular buildings. Panel-assembled buildings use prefabricated wall panels and floor slabs as core components, allowing for expanded usable area but limited design flexibility. Box-assembled buildings combine prefabricated functional units, increasing construction speed by 50%-70%, but requiring higher transportation and lifting equipment. Modular buildings have a higher degree of integration, breaking down the building into independent modules that are manufactured in a factory and then transported to the site for assembly.

Advantages are significant: short construction period, with modular building construction periods reduced by more than 60% compared to traditional buildings. For example, the Guangdong Shenzhen affordable housing project, assembled from 6,028 concrete modules, had its construction period reduced from 2.5-3 years to 1 year. Controllable quality, with each component having a detailed "ID card" and design controlling errors and precision in millimeters. Energy-saving and environmentally friendly, with factory production reducing noise, dust, construction waste, and traffic congestion. Regions like Fujian Province have achieved a more than 70% reduction in construction waste through policy support. Easy maintenance, with modular buildings allowing for flexible repairs and quick replacement of damaged components.

Market and Applications

Domestic market applications include residential buildings, affordable housing, hotels, senior living apartments, dormitories, office buildings, and data centers. Overseas market sales are booming, with Guangzhou Customs reporting exports of prefabricated houses worth 1.4 billion yuan in the first four months of 2026, a year-on-year increase of 38.1%. Nationwide, companies exported 1.68 billion yuan worth of products through Shenzhen ports, a year-on-year increase of 19.6%, to over 150 countries and regions. Overseas customers continue to "repurchase", such as a British merchant who purchased 63 modular senior living apartments, which were assembled on-site in two weeks, and a Papua New Guinean merchant who built a hotel with 84 modules. The global demand for modular data center services is rapidly growing, with over 1,000 megawatts of installed capacity projects delivered, covering Malaysia, Indonesia, the Middle East, Italy, and more. Market prospects are broad, with some institutions predicting that the global modular building market will exceed $142.8 billion by 2030.

Industrial Support

The modular building model places extremely high demands on industrial foundations, requiring support from technical systems, production systems, and industrial clusters. For example, the CSCEC Hailong Intelligent Construction Industrial Park has an annual delivery capacity of approximately 20,000 to 30,000 modular buildings, utilizing automated vertical warehouses and intelligent production lines to achieve efficient production.