Prefabricated Modular Housing

Prefabricated modular housing is a building form that adopts a modular construction model, where buildings are divided into independent modules, prefabricated in factories, and then transported to the site for assembly. It offers advantages such as short construction periods and controllable quality, with continuously expanding application scenarios.

Construction Model and Process

Prefabricated modular housing uses modular design to divide buildings into independent modules such as ceilings, floors, walls, and plumbing and electrical systems. All components are prefabricated on factory assembly lines. For example, at the China Construction Hailong Intelligent Construction Industrial Park in Shenzhen, Guangdong, ceilings, walls, and bathroom waterproof layers of houses are all manufactured in the factory. Scattered components are produced separately and then assembled into modules on a general assembly platform, with an annual delivery capacity of 20,000 to 30,000 modules. On-site construction only requires transporting the prefabricated modules to the site and assembling them like “building blocks” using lifting equipment, significantly reducing wet operations such as on-site pouring and masonry common in traditional construction.

Core Advantages

1. Significantly Shortened Construction Period: The construction cycle can be reduced by more than 60%. For example, a 16-story building with 298 modules can be delivered in just 120 days from the first lifting; a public housing project in Shenzhen using 6,028 concrete modules reduced its completion and delivery time from 2.5-3 years to 1 year, with on-site labor reduced by about 50%.
2. High Quality Controllability: Standardized factory production eliminates human errors, ensuring that component dimensions, pre-embedded positions of plumbing and electrical systems, and other aspects meet design requirements, reducing common quality issues.
3. Outstanding Energy-Saving and Environmental Benefits: On-site wet operations are reduced by more than 80%, significantly lowering noise, dust, construction waste, and traffic congestion that disturb residents; modular production optimizes material utilization and reduces resource waste.
4. Improved Maintenance Convenience: Modular design facilitates later inspection, repair, and replacement. For example, plumbing and electrical systems are integrated into prefabricated walls, allowing repairs without damaging the overall structure.

Technical Types and Industrial Support

Prefabricated modular housing includes three major types: panel assembly, box assembly, and frame assembly. The technical systems encompass prefabricated concrete structures and steel structures, with components involving prefabricated products such as beams, slabs, walls, and columns. Its development relies on a complete industrial foundation, requiring the collaborative support of technical systems (such as BIM design and intelligent lifting), production systems (automated production lines), and industrial clusters (supply chain collaboration).

Application Status and Prospects

Currently, intelligent factories in China have achieved assembly-line production of high-rise buildings, with rapid growth in the export scale of prefabricated houses. In the first four months of 2026, the export value of movable houses in the Guangzhou Customs area reached 1.4 billion yuan, a year-on-year increase of 38.1%; market research institutions predict that the global modular construction market size will exceed 142.8 billion US dollars by 2030, with application scenarios continuously expanding from residential to commercial, medical, educational, and other fields.