How Many Prefabricated Panel Houses Are There in China?

There are approximately 18.7 million sets of prefabricated panel residential buildings in China, with another claim stating that there are about 120 million prefabricated panel buildings (80 million in urban areas). However, the figure of 18.7 million sets is generally regarded as the primary reference due to its more authoritative source.

Sources and Explanations of Data Differences

1. Different Statistical Criteria
   The figure of 18.7 million sets released by the Ministry of Housing and Urban-Rural Development specifically targets "prefabricated panel residential buildings," which are residential structures with prefabricated panels as the main load-bearing components, focusing on residential buildings. The statement of "120 million buildings" may include non-residential structures (such as industrial plants and public facilities), and the difference in units between "buildings" and "sets" leads to an expansion in the order of magnitude. For example, a multi-story residential building may contain dozens of housing units, and directly converting "buildings" to "sets" would significantly inflate the data.

2. Differences in Regional Coverage
   The data from the Ministry of Housing and Urban-Rural Development covers the entire country, while the statement of "80 million buildings in urban areas" only refers to urban regions and does not include rural prefabricated panel buildings. If rural areas are included in the statistics of "120 million buildings," the data may be subject to duplication or estimation errors due to the high proportion of low-rise buildings in rural areas and the difficulty in conducting statistics.

3. Time and Standard Updates
   The statistics of prefabricated panel buildings are significantly influenced by the time dimension. During the 1980s and 1990s, China extensively adopted prefabricated panel technology for residential construction, but some buildings have been removed from the statistics through renovations (such as elevator installations and structural reinforcements) or demolitions and reconstructions. Additionally, different regions may have varying definitions of "prefabricated panel buildings," such as whether to include mixed-structure buildings that partially use prefabricated panels.

Reference Value of Authoritative Data

As the competent authority in the housing construction sector, the Ministry of Housing and Urban-Rural Development obtains its data through channels such as national housing censuses and real estate registration systems, ensuring higher accuracy and policy guidance significance. The figure of 18.7 million sets is more suitable for analyzing specific issues such as residential safety and renovation needs, while the statement of "120 million buildings" should be further verified in terms of its statistical scope and definition in conjunction with the context to avoid misunderstandings caused by direct comparisons.