Prefabricated Assembly House Project
The prefabricated assembly house project is a construction method that involves the industrial production of building components and their on-site assembly. It offers advantages such as shortened construction periods and reduced pollution, with promising market prospects driven by policy support.
Technical Types and Components
The main types of prefabricated assembly houses include panel-based, box-based, and frame-based assemblies. The technologies encompass prefabricated concrete structures and steel structures, with components including prefabricated beams, slabs, walls, and columns. Among them, panel-based assemblies use prefabricated wall panels and floor slabs as core components, allowing for expanded usable area but with limited design flexibility. Box-based assemblies 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 structure into independent modules that are manufactured in factories and then assembled on-site, reducing construction periods by over 60%.
Development History and Policy Support
China's prefabricated concrete technology began in the 1950s, initially applied in factory and residential construction. In the 21st century, it has seen a resurgence due to production efficiency and environmental advantages. Companies like Vanke Group have developed prefabricated shear wall residential structural systems and applied prefabricated frame technologies in engineering projects. In terms of policy, the "Opinions of the General Office of the State Council on Vigorously Developing Prefabricated Buildings" was issued in 2016, defining it as a major transformation in construction methods. By 2025, the proportion of newly started prefabricated buildings in Hainan Province will reach 80%. Starting from 2026, all residential land sold in Guangzhou will implement prefabricated buildings, with commercial and industrial land applying the technology wherever technically feasible.
Application Cases and Market Prospects
Regions like Guangdong Province have established industrial bases through policy support, achieving a reduction in construction waste by over 70%. In Shenzhen, Guangdong, a social housing project consisted of five residential buildings nearly 100 meters high, assembled from 6,028 concrete modules. The completion and delivery period was reduced from 2.5 to 3 years to just 1 year, with on-site labor reduced by about 50%, significantly reducing noise, dust, construction waste, and traffic congestion at the construction site. In the market, Chinese-made prefabricated houses are selling well 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%. According to market research institutions, the global modular building market is expected to exceed $142.8 billion by 2030.
