Demolition of Row Prefabricated Slab Houses

Row prefabricated slab houses are not subject to comprehensive demolition; instead, their handling is determined through a comprehensive assessment based on the degree of danger and renovation value of the houses. Details are as follows:

I. Assessment Based on the Danger Level of Houses According to the "Standard for Appraisal of Dangerous Houses" (JGJ 125 - 2016), the safety levels of houses are classified into four grades: A, B, C, and D, with houses at grades C and D potentially involving demolition:

• Grade C Houses: Some load-bearing structures do not meet safety requirements, posing local hazards. For such houses, priority is usually given to eliminating hidden dangers through engineering measures, such as reinforcement and repair. If the building is severely aged, has concentrated functional defects, and the residents have a unified willingness for renovation, it may also enter the reconstruction path.
• Grade D Houses: The load-bearing structures have failed, and the entire house is in danger. For such houses, as they threaten the safety of the entire building, minor repairs cannot solve the fundamental problems. They must be demolished and rebuilt, and the policy explicitly requires that they "should be demolished as much as possible".

II. Restrictions in Line with Urban Renewal Policies Even if a house is appraised as grade C or D, the scope of demolition is still subject to policy constraints. The "Notice on Further Supporting Several Measures for Urban Renewal Actions" jointly issued by the Ministry of Natural Resources and the Ministry of Housing and Urban-Rural Development in 2026 clearly defines two red lines:

• Demolition Ratio Limit: Within a single urban renewal unit, the demolished building area shall, in principle, not exceed 20% of the current total building area. This means that even if a residential area is included in the renewal scope, at most only one-fifth of the buildings can be demolished, and the rest need to be addressed through renovation, repair, or functional enhancement.
• Demolition-to-Construction Ratio Limit: The demolition-to-construction ratio (the ratio of the demolished area to the newly built area) of the project shall not exceed 2 to avoid overdevelopment.

III. Key Decision-Making Basis The core basis for determining whether row prefabricated slab houses should be demolished is the house safety appraisal report issued by a qualified institution. Residents or management departments need to entrust a professional institution to conduct a comprehensive inspection of the house. Based on the appraisal results and in combination with policy requirements, they can choose paths such as reinforcement and repair, original demolition and reconstruction, or expropriation and renovation.

In conclusion, the demolition of row prefabricated slab houses needs to meet the dual conditions of "safety" and "policy". It is neither a one-size-fits-all demolition nor a complete ban, but rather achieves precise renewal through scientific assessment and policy constraints.