Demolition of Cement Prefabricated Houses in Zhejiang

The demolition of cement prefabricated houses in Zhejiang should be carried out in accordance with policy guidelines, implementation conditions, and regional differences, following standardized procedures, with a focus on updating and renovating dilapidated houses and old residential areas.

I. Policy Guidelines and Demolition Priorities

Zhejiang Province has explicitly included the demolition of cement prefabricated houses within the scope of self-initiated updates for old residential areas, prioritizing two types of houses:

1. Houses with prominent structural safety hazards: Such as prefabricated panel-structured houses identified as Class C (partially dilapidated) or Class D (completely dilapidated), especially non-complete residential buildings built before 2000. For example, Haining City's policy explicitly calls for the swift demolition of Class D dilapidated houses and promotes overall neighborhood upgrades (such as elevator installations and infrastructure improvements).
2. Areas with strong resident willingness for self-initiated updates: The policy encourages updates through the 'demolition and reconstruction on the same site' model, such as the Changcheng Jiaoyuan residential area in Yuecheng District, Shaoxing, which, with its 30-year-old prefabricated panel houses, became the province's first self-initiated update project due to 100% resident signing.

II. Demolition Conditions and Implementation Procedures

1. Owner Consultation and Signing:
   • Requires an initial willingness agreement rate of 95% and a formal signing rate of 100% (e.g., Haining's policy allows submission of an application when the agreement rate for updates reaches 90%, but the signing rate must still reach 100% before evacuation and relocation).
   • The Shaoxing case shows that residents must fully bear the reconstruction costs (e.g., a minimum-sized unit requiring an investment of nearly 100,000 yuan), with the government providing policy support (such as optimized subsidies and buyback solutions for hazard mitigation) to assist in the process.
2. Safety Monitoring and Risk Control:
   • Lishui City has installed 1,928 dynamic monitoring devices on dilapidated houses to monitor tilt, displacement, and other conditions in real-time, and has developed an alarm platform to ensure risk controllability before demolition.
3. Construction and Site Clearance Requirements:
   • The demolition project in Caozhuang Plot, Nanhu District, Jiaxing City, requires completion of construction, site clearance, and site leveling within 20 calendar days for a single plot, reflecting efficient execution standards.

III. Regional Differences and Implementation Models

1. Hangzhou, Jiaxing, Shaoxing: Focus on demolishing Class D dilapidated houses and prefabricated panel-structured houses, adopting an 'owner-led + government-supported' model, such as the Shaoxing residential area driving updates through 100% resident signing.
2. Lishui: Adopts a classified treatment approach through 'state-owned enterprise buybacks + urban updates', having acquired 541 households (completion rate of 86.28%) and expropriated 69 Class D dilapidated houses (covering an area of approximately 5,900 square meters), balancing demolition with resettlement.

IV. Core Principles

Both central and local policies emphasize 'prioritizing the demolition of uninhabitable houses' to ensure urban safety. Zhejiang promotes the coordinated advancement of cement prefabricated house demolition and old residential area renovation through policy refinement, financial support, and safety control, forming a replicable update model.