Prefabricated Components for Whole Houses

Prefabricated components for whole houses are the core elements of modular construction or prefabricated assembly-type construction, enabling efficient construction through factory prefabrication and on-site assembly, with advantages such as short construction periods, controllable quality, and environmental protection and energy conservation.

I. Core Concepts and Classifications

Prefabricated components for whole houses mainly fall into two categories:

1. Modular Construction: Buildings are disassembled into independent unit modules (such as walls, floors, ceilings, and plumbing and electrical lines). All processes, including interior decoration and electromechanical installation, are completed in the factory. The modules are then transported to the site for direct assembly. For example, the affordable housing project in Shenzhen, Guangdong, used 6,028 concrete modules, reducing the construction period by more than 60% compared to traditional methods and decreasing on-site labor by about 50%.
2. Prefabricated Assembly-Type Construction: This encompasses technical systems such as panel assembly, box assembly, and frame assembly, with components including prefabricated products like beams, slabs, walls, and columns. For instance, the Nanjing Jindi Yufang project adopted a prestressed prefabricated concrete assembled integral frame structural system, and Fujian Province achieved a reduction in construction waste of over 70% through policy support.

II. Technical Advantages and Characteristics

1. Efficient Construction: Standardized factory production avoids on-site construction errors, shortening the construction period by 30%-60% and reducing on-site labor by more than 50%.
2. Controllable Quality: Industrial production ensures component precision, with interior decoration and electromechanical installation completed simultaneously, reducing quality hazards.
3. Environmental Protection and Energy Conservation: On-site wet operations are reduced, lowering dust and noise pollution, and construction waste is decreased by over 70%, meeting green building standards.
4. Strong Adaptability: Modules can be flexibly combined, suitable for scenarios such as data centers, office buildings, hotels, and schools, with a market covering more than 20 countries and regions including ASEAN, the UK, and Australia.

III. Market Applications and Development

Chinese prefabricated houses (such as steel structures and concrete modules) are selling well overseas. In the first four months of 2026, Guangzhou Customs exported 1.4 billion yuan worth of mobile houses, a year-on-year increase of 38.1%; Shenzhen Port exported 1.68 billion yuan worth, a year-on-year increase of 19.6%. Traditional prefabricated panel houses (mainly made of cement prefabricated panels) have gradually been replaced by cast-in-place concrete and assembled buildings due to issues such as weak earthquake resistance and poor sound and heat insulation. Existing prefabricated panel houses are mostly used for renovation or as standard buildings for demolition of dilapidated houses.

Prefabricated components for whole houses, through the industrial logic of 'building houses like making cars,' are driving the construction industry towards efficiency, environmental protection, and intelligence, becoming an important trend in the global construction market.