Factory-Prefabricated Assembled Housing

Factory-prefabricated assembled housing is a construction form that involves industrial production of building components and on-site assembly. It encompasses various types such as prefabricated concrete structures, steel structures, and modern timber structures, offering advantages such as short construction periods and controllable quality, but relying on industrial foundation support.

Main Types and Characteristics

1. Panel-Based Assembly: Utilizing prefabricated wall panels and floor slabs as core components, rapid assembly is achieved through standardized design. Its advantage lies in expanding indoor usable area, but it has lower design flexibility and is suitable for residential buildings or factories with clear functional requirements.
2. Box-Based Assembly: Combining prefabricated functional units (such as kitchens and bathrooms) into complete spaces, construction speed is increased by 50%-70% compared to traditional methods. However, it requires higher transportation and lifting equipment, and factors such as road height restrictions and site space must be considered.
3. Modular Construction: With the highest level of integration, buildings are broken down into independent modules (such as bedrooms and living rooms), with structural, finishing, and equipment installations completed in the factory. On-site assembly periods can be shortened by more than 60%. It is suitable for temporary buildings, emergency housing, and high-end residential projects.

Development History and Policy Support China's prefabricated concrete technology originated in the 1950s and was initially used for factory and residential construction. In the 21st century, due to increased production efficiency and renewed environmental protection demands, companies like Vanke developed prefabricated shear wall residential structural systems. In 2016, the "Opinions of the General Office of the State Council on Vigorously Developing Prefabricated Buildings" identified it as a direction for construction method transformation, setting goals such as resource conservation and pollution reduction. Local policies have further promoted implementation, such as Hainan Province aiming for 80% of newly started prefabricated buildings by 2025 and Guangzhou implementing 100% prefabricated construction for residential land starting in 2026.

Advantages and Challenges Compared to traditional methods, factory-prefabricated assembled housing offers short construction periods (on-site work reduced by more than 60%), controllable quality (factory environment avoids weather interference), energy efficiency and environmental protection (reduced construction waste and dust pollution), and ease of maintenance (components can be disassembled and replaced). However, this model relies on support from technical systems (such as connection node design), production systems (automated production lines), and industrial clusters (supply chain collaboration). Initial investment costs are high, and cost reduction requires large-scale application.

Market Applications and Exports China's prefabricated housing technology is mature, with products selling well overseas. According to customs data, 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%, primarily to Southeast Asia and the Middle East, meeting local rapid construction demands.