Demolition of Prefabricated Floor Slab Houses

Not all prefabricated floor slab houses are demolished; instead, they are classified and handled based on the results of housing safety appraisals and urban planning needs. The specific situations are as follows:

I. Houses that meet the dangerous building standard (Grade D) must be demolished and rebuilt
If a prefabricated floor slab house is appraised as a Grade D dangerous building by a professional institution, typically characterized by foundation subsidence and significant damage to the main structure (such as cracks in load-bearing walls and deformation of beams and columns), and fundamental safety issues cannot be resolved through reinforcement and renovation, it must be included in the demolition scope. For example, some old prefabricated floor slab buildings, due to low design standards and long-term disrepair, no longer meet current safety standards, and demolition and reconstruction are necessary measures to ensure residential safety.

II. Houses with inadequate disaster resistance capabilities may be demolished
If a house has insufficient earthquake or flood resistance capabilities and is at risk of failure during earthquakes, floods, or other disasters, it may be included in the demolition scope. For example, some early-built prefabricated floor slab buildings were not designed according to seismic fortification requirements or have aged structural connection nodes, resulting in reduced overall seismic performance. Such buildings may be prioritized for demolition in disaster-prone areas.

III. Houses conflicting with urban planning are demolished according to the plan
If a house conflicts with planned functions due to urban infrastructure construction (such as subway construction, bridge building, or road widening) or the development needs of urban core areas, it must be demolished according to the plan. For example, prefabricated floor slab buildings located in key areas such as transportation hubs and commercial centers may be demolished to improve land use efficiency.

IV. Houses that do not meet the above criteria are mainly subject to renovation
The vast majority of prefabricated floor slab buildings that do not meet the dangerous building standard, have adequate disaster resistance capabilities, and do not conflict with urban planning will have their living quality improved through renovation. Renovation measures include elevator installation, facade updates, pipeline network renovation, and additional parking spaces, aiming to improve living comfort rather than demolition and reconstruction. The policy explicitly opposes 'large-scale demolition and construction,' emphasizing classified handling and prioritizing buildings at risk. The renovation path must be formulated on a 'one-building, one-policy' basis according to the actual condition of the building.