What Do Liaoning Prefabricated Houses Include?

Liaoning prefabricated houses mainly include large panel houses and prefabricated panel houses subject to safety assessment and classification management.

Large Panel Houses

The typical representative of Liaoning prefabricated houses is large panel houses, an industrialized housing type that uses prefabricated wall panels as load-bearing structures. Its core feature is that, except for the foundation, all components are constructed using prefabricated assembly methods, achieving industrialized building production. This system was systematically proposed by the Liaoning Industrial Architecture Design Institute in 1974 in the book Design and Construction of Large Panel Houses. It uses silicate building products (such as prefabricated concrete wall panels and floor slabs) as the main materials, significantly improving housing construction efficiency and quality through standardized design, factory production, and on-site assembly construction. This type of housing is representative in the Liaoning region, reflecting the local practical achievements of early prefabricated building technology.

Safety Assessment and Classification Management of Prefabricated Panel Houses

In 2026, relevant authorities in Liaoning conducted a comprehensive survey and safety assessment of existing prefabricated panel houses and implemented classification management based on the actual safety levels of the houses:

• Grade C Dilapidated Houses: These refer to prefabricated panel houses where the load-bearing capacity of some structural components cannot meet normal usage requirements, with local hazards posing a risk of partial collapse. For such houses, repair and reinforcement measures are taken, including structural strengthening and component replacement, to restore their safety and extend their service life.
• Grade D Dilapidated Houses: These refer to prefabricated panel houses where the load-bearing capacity of the structural components can no longer meet normal usage requirements, with overall hazards posing a risk of complete collapse. For such houses, in principle, demolition and reconstruction measures are taken to completely eliminate safety hazards and ensure residential safety.

This classification management mechanism reflects the scientific and standardized approach of Liaoning in prefabricated housing management, safeguarding residents' lives and property while rationally utilizing existing building resources. Through safety assessment and classification management, Liaoning's prefabricated housing system has formed a complete closed loop at both the technical practice and policy management levels, providing local experience for the sustainable development of prefabricated building technology.