Removal of Precast Slabs in Old Houses

Starting from 2026, the removal of precast slabs in old houses will not be implemented comprehensively but will be classified and handled according to specific types of houses. Meanwhile, most old residential communities will improve their living quality through renovation projects.

I. Types of precast slab houses requiring removal

1. Grade D dilapidated houses: Precast slab houses identified as Grade D dilapidated houses by professional institutions must be demolished. The structural safety of such houses has reached a dangerous state, such as foundation settlement exceeding 5 centimeters, crack widths in load-bearing walls greater than 1 millimeter, and seismic resistance levels less than 70% of the current standards. Minor repairs cannot solve the fundamental problems, and the repair costs are high with significant construction difficulties. Therefore, methods such as demolition and reconstruction, expropriation and renovation, or original demolition and reconstruction are more likely to be adopted.
2. Houses with inadequate disaster resistance: If the seismic resistance of precast slab houses is less than 70% of the current standards or there are serious safety hazards during flood disasters, they will be prioritized for removal. Such houses are difficult to withstand natural disasters, and demolition is a necessary measure to ensure the safety of residents.
3. Houses affecting urban planning: Precast slab houses located within the planning scope of major infrastructure construction projects such as subways and viaducts may face demolition to facilitate the overall urban planning. In addition, some low-intensity buildings in the urban core area may also be replaced due to the need to cover development returns.

II. Other handling methods

1. Grade C houses: If precast slab houses are identified as Grade C (partially dangerous),隐患（此处原文中文“隐患”在英文语境下结合前文，理解为“safety hazards”更合适，已在下面英文中体现） can be eliminated through reinforcement and repair; if the building is severely aged, has concentrated functional defects, and the residents have a unified willingness, it may also enter the reconstruction path.
2. Renovation and improvement: In addition to the houses requiring demolition, the vast majority of old residential communities will improve their comfort through renovation projects, including the installation of elevators, the updating of facades, the renovation of rain and sewage diversion pipelines, the addition of parking spaces, the optimization of activity areas and walking spaces for the elderly, and the replacement of aging water, electricity, gas, and heating systems.

III. Compensation plans

1. Monetary compensation: The compensation standard is not less than 110% of the market price of surrounding commercial houses. For example, the assessed price of Dong'an First Village in Shanghai reached 135,000 yuan per square meter, which is 15% higher than the second-hand housing price in the same area; in Wenzhou, Zhejiang, precast slab houses built before 2000 are compensated at 2,800 yuan per square meter, which is 16.7% higher than that of brick-and-concrete houses.
2. Property rights exchange: Residential buildings in Handan are replaced at a ratio of 1:1.1, and houses on homesteads can be replaced at a maximum ratio of 1:1.2; for those with a per capita living area of less than 30 square meters, the guaranteed area is made up, which is suitable for people with long-term living needs.
3. Housing voucher resettlement: Some regions have implemented a housing voucher resettlement system to provide residents with more choices.