Zhejiang Hangzhou Cement Prefabricated Houses
The renovation policies and compensation methods for cement prefabricated houses (prefabricated panel houses) in Hangzhou, Zhejiang are as follows:
I. Characteristics and Issues of Prefabricated Panel Houses
Cement prefabricated houses are constructed by prefabricating and assembling cement concrete blocks. They have the advantages of fast construction speed and low cost, but they also suffer from issues such as short service life (30-40 years), wall cracks, water leakage, poor sound and thermal insulation, and insufficient resilience in natural disasters like earthquakes. As a key area for urban renewal, Hangzhou has made such houses a focal point for renovation.
II. Renovation Measures and Policy Basis
Hangzhou has adopted measures such as reinforcement, repair, or demolition and reconstruction for prefabricated panel houses. Based on Zhejiang Province's Guiding Opinions on Steadily Promoting the Pilot Work of Independent Renewal of Old Urban Residential Areas (Trial), the principle of "demolition first, safety first" is emphasized, supporting "original-site reconstruction". Additionally, the pre-sale system is being gradually phased out, and the sale of completed houses is being promoted.
III. Priority Conditions for Demolition
Prefabricated panel houses that meet the following conditions will be prioritized for demolition:
- Grade D dilapidated houses: Structurally severely damaged and at risk of collapse;
- Houses over 40 years old: Such as those built before the 1980s;
- Located in the urban core area: Areas prioritized by the government for renovation;
- High owner approval rate: For example, over 90% of residents support demolition.
IV. Compensation Methods for Residents
For residents whose houses are demolished, a common compensation method is original-site relocation, with area replacement (e.g., 1:1.2), meaning the original housing area is multiplied by 1.2 to determine the area of the new house. If the house structure is intact but requires improved living conditions, it may be included in the old renovation plan and upgraded through measures such as pipeline replacement, elevator installation, and facade renovation, rather than direct demolition.
V. Typical Cases
Regions such as Chaohui and Jingfang in Hangzhou have been included in demolition plans due to subway construction, with some communities being demolished and rebuilt, while others are being upgraded. For example, the Chaohui community has improved living conditions through "original-site reconstruction", while the Jingfang community has enhanced functionality through elevator installation and pipeline replacement.
Summary: The renovation of cement prefabricated houses in Hangzhou focuses on safety, prioritizing the demolition of dilapidated, old houses, and projects in core areas. Compensation is primarily through original-site relocation, while old renovations target houses with intact structures. The policy aims to balance urban renewal with residents' rights and interests, promoting sustainable improvement of the living environment.
