Prefabricated Panel Houses in Old Residential Areas
Prefabricated panel houses in old residential areas are classified and handled through 'retention, renovation, and demolition' based on their safety levels, rather than being uniformly demolished. Most can continue to be used safely after renovation.
I. Current Situation and Problems of Prefabricated Panel Houses
Prefabricated panel houses in old residential areas were mostly built in the 1970s and 1980s. Due to the construction conditions at that time, the floor slabs were assembled from cement panels, resulting in relatively weak integrity. Their designed service life is typically around 40 years. Nowadays, many of these houses have exceeded their intended service life and commonly suffer from problems such as poor thermal insulation and soundproofing, peeling wall surfaces, wall cracks, and ceiling water leakage. In extreme cases, they may even pose safety hazards.
II. Classification and Disposal Policies and Bases
The state explicitly rejects large-scale demolition and construction, adopting a classification and disposal approach of 'retention, renovation, and demolition' based on house safety appraisal reports issued by qualified institutions. The appraisal results are divided into four grades: A, B, C, and D:
- Grade A Houses: The structure is intact with no dangerous components, and they are safe for habitation. They are included in regular renovations of old residential areas, such as replacing aging water and electricity pipelines, repairing roof waterproofing, improving the environment, and installing elevators where conditions permit.
- Grade B Houses: The main structure is stable, with individual minor components having problems that do not affect overall safety. Priority is given to local maintenance and upkeep, along with comprehensive improvements, allowing for normal habitation without issues.
- Grade C Houses: These are partially dilapidated houses with some load-bearing components showing defects. Targeted structural reinforcement is required, such as repairing floor slab cracks and seismic strengthening. Most of the renovation funds are covered by special funds for old residential area renovations.
- Grade D Dilapidated Houses: The entire load-bearing structure is severely damaged with no value for reinforcement or repair. They need to be promptly demolished and rebuilt to ensure the safety of residents.
III. Clarification of Common Misconceptions
Relevant surveys show that over 70% of the prefabricated panel building blocks appraised do not belong to Grade D dilapidated houses. Through repair and reinforcement renovations, they can continue to be used safely. Only a small number truly require demolition and reconstruction. Online rumors such as 'uniform demolition of all prefabricated panel houses' and 'mandatory demolition upon reaching the age limit' are untrue. Demolition and reconstruction are determined based on a comprehensive assessment of house safety levels and overall urban planning.
IV. Policy Extensions and Goals
In 2023, relevant departments clearly stipulated that the construction of buildings that do not meet safety standards, such as prefabricated panel houses, is prohibited within urban construction land for new construction, renovation, or expansion. The '15th Five-Year Plan' for urban renewal in Qinghai Province proposes that by 2030, Grade D dilapidated houses will be completely and dynamically eliminated, and 150,000 sets of old residential areas in cities and towns will be renovated, further promoting safety upgrades in old residential areas.
