Prefabricated Construction Site Housing

Prefabricated construction site housing is a building form that involves industrial production of building components and on-site assembly. It is also known as prefabricated assembled buildings or modular buildings. Its core feature is to break down the building into independent modules (such as wall panels, floor slabs, functional units, etc.), which are manufactured in factories and then transported to the construction site for assembly, similar to the process of 'building with blocks'.

Technical Types and Core Advantages

Technical Types: They cover prefabricated concrete structures and steel structures, with components including prefabricated products such as beams, slabs, walls, and columns. The main forms are steel structures, concrete structures, and wooden structures, among which Chinese companies' steel and concrete technologies have global competitiveness. Steel structures are lightweight and suitable for ocean transportation, while concrete structures are closer to traditional living experiences. Core Advantages:

• Short Construction Period: The construction period is 30%-60% shorter than traditional methods. For example, a public housing project in Shenzhen, assembled from 6,028 concrete modules, had its completion and delivery period reduced from 2.5-3 years to 1 year.
• Controllable Quality: Factories use automated production lines and millimeter-level precision control. Each component has a detailed 'ID card' (such as project name, model, production date) to ensure traceable quality.
• Environmental Protection and Energy Efficiency: It reduces on-site noise, dust, and construction waste. With policy support in Fujian and other places, construction waste has been reduced by more than 70%.
• Flexible Maintenance: Modular design facilitates later maintenance and upgrades. For example, replacing damaged wall panels or functional units does not require large-scale demolition and reconstruction.

Application Scenarios and Market Expansion

Domestic Applications: Early applications were in factory and residential construction (in the 1950s). In the 21st century, it has recovered and been promoted to high-rise buildings. For example, Vanke Group has developed a prefabricated shear wall residential structural system and applied prefabricated frame technology in engineering projects. Since 2022, the renovation policy for prefabricated panel houses has focused on repair and renovation, with only buildings meeting the criteria for dangerous houses being demolished. Overseas Expansion: Chinese prefabricated houses are in high demand overseas. In the first four months of 2026, the Guangzhou Customs District exported movable houses worth 1.4 billion yuan, a year-on-year increase of 38.1%; the Shenzhen Port exported 1.68 billion yuan worth, a year-on-year increase of 19.6%. Overseas projects are mainly modular buildings. For example, the China Construction Hailong Intelligent Construction Industrial Park delivers 20,000-30,000 modules annually, with products covering the global market.

Technical Challenges and Future Trends

Modular buildings have extremely high requirements for industrial foundations, needing support from technical systems, production systems, and industrial clusters. It is predicted that the global modular building market size will exceed $142.8 billion by 2030. Currently, China is promoting the transformation of houses from 'on-site construction' to 'factory manufacturing' through 'industrial standards + digital precision + automation efficiency', which is the underlying logic for the surge in global market orders.