Can Cement Prefabricated Block Houses Be Demolished?

Whether cement prefabricated block houses (prefabricated panel houses) can be demolished depends on specific circumstances and can be mainly divided into the following four categories:

1. Grade D dilapidated houses must be demolished

If a house is identified as a Grade D dilapidated house by a professional institution (i.e., the overall structural bearing capacity is insufficient and there are serious safety hazards), it must be demolished. Typical characteristics include:

• The width of cracks in load-bearing walls exceeds 1 centimeter, or there is large-scale peeling of concrete and exposed and rusted steel bars;
• Foundation settlement causes deformation of doors and windows and tilting of walls;
• Fractures or serious deformations occur at beam-column joints. For example, Building 28 in Sanlihe Area 1, Xicheng District, Beijing, was identified as a Grade D dilapidated house and the demolition process was initiated in September 2025. Such demolitions are led by the government and aim to eliminate public safety risks.

2. Demolition is required for planned expropriation

If a house is included within the planned red line area due to urban development needs (such as building subways, widening roads, or constructing schools or hospitals and other public facilities), it may be demolished even if its structure is intact. Such demolitions need to meet the following conditions:

• The government issues an expropriation announcement in accordance with the law, clearly stating the compensation standards;
• The land after demolition is used for public interest projects. For example, in a certain city, due to the construction of a subway line, the prefabricated panel houses along the line need to be demolished, and residents can obtain reasonable compensation in accordance with the Regulations on the Expropriation of Houses on State-owned Land and Compensation.

3. Active demolition for risk avoidance and relocation

If a house is located in high-risk areas for natural disasters such as earthquake zones, landslide areas, and low-lying and flood-prone areas, the government may organize risk avoidance and relocation. Typical scenarios include:

• Houses around geological hazard隐患点 (such as the mouths of debris flow gullies and fault zones);
• Low-rise residential buildings in areas with frequent flood disasters. Such demolitions are usually accompanied by relocation to other places or monetary compensation. For example, in a certain earthquake-stricken area in Sichuan, the prefabricated panel houses were relocated as a whole.

4. Repair is the main approach in non-aforementioned cases

If a house does not meet the standards for dilapidated houses, is not planned for expropriation, or is not located in a dangerous area, it will usually not be demolished. Instead, its safety will be improved through the renovation of old residential areas. Common renovation measures include:

• Structural reinforcement (such as adding ring beams and structural columns);
• External wall insulation, pipeline replacement, and elevator installation;
• Roof waterproofing treatment. In addition, some areas are piloting the "demolition and reconstruction on the original site" model, allowing residents to raise funds themselves to demolish old prefabricated panel houses and rebuild them on the original site (such as in Qingdao, Yueqing, Wenzhou, Zhejiang, and Yuecheng District, Shaoxing). Such renovations need to comply with local planning requirements and be jointly decided by the owners.

Summary: The demolition of cement prefabricated block houses requires a comprehensive assessment of structural safety, planning needs, and disaster risks. When a house is not a dilapidated house and has no special planning, repair and renovation should be given priority. If residents face demolition demands, they should first confirm the house identification grade and government planning documents and then claim their rights in accordance with the law.