Demolition of Prefabricated Floor Slabs in Houses

Currently, there is no authoritative document announcing that all prefabricated slab buildings will be demolished starting from 2026. The demolition of prefabricated slab houses follows the principle of 'adapting measures to local conditions and implementing strategies based on classification,' with the following three categories being prioritized for demolition:

Category 1: Prefabricated slab houses with damaged main structures that cannot be repaired
If the main structure of a prefabricated slab house has suffered severe damage, such as wall cracks or beam and column deformations, and its safety and functionality cannot be restored even through renovation (e.g., reinforcement or repair), such houses will be prioritized for demolition. When professionally assessed and found to meet the criteria for dilapidated housing (especially Grade D dilapidated housing, characterized by foundation subsidence and significant damage to the main structure), and renovation cannot address the fundamental issues, demolition becomes the bottom-line measure to safeguard the lives and property of residents.

Category 2: Prefabricated slab houses with substandard disaster resistance and potential safety hazards
Some prefabricated slab houses, although their main structures remain intact, have low design or construction standards and are unable to withstand natural disasters such as earthquakes and floods. For example, houses that do not meet local seismic fortification requirements or have weak drainage systems prone to flooding. These houses may appear stable under normal conditions but could collapse instantly during extreme weather or geological disasters, causing severe consequences. Therefore, they need to be prioritized for demolition to eliminate hidden dangers.

Category 3: Prefabricated slab houses on municipal planning land
Due to urban development needs, if prefabricated slab houses are located within the scope of municipal planning land (e.g., for constructing high-speed railways, widening roads, building elevated bridges, or subways), they need to be demolished according to the plan. Additionally, some low-intensity prefabricated slab houses in urban core areas may be included in the demolition scope if their renovation and upgrading can improve land use efficiency (e.g., by replacing them with higher-density, more functionally appropriate buildings) and the market returns can cover the renovation costs. However, such decisions require a comprehensive balance between public interests and market factors and are not a 'one-size-fits-all' policy.

Other situations: Most old residential areas focus on renovation
Except for the above three categories, prefabricated slab houses with structurally sound and disaster-resistant capabilities that are not involved in municipal planning are usually upgraded through renovation (e.g., installing elevators, upgrading pipelines, adding parking spaces) to improve living quality rather than being directly demolished. In terms of demolition tools, excavators can efficiently complete the demolition of prefabricated slabs and brick walls, but specific operations must be carried out by professional teams in accordance with regulations.