Prefabricated Assembly-Type Housing Standards
The relevant standards for prefabricated assembly-type housing mainly include national standards, local standards, and engineering construction specifications in Shanghai. The specific content is as follows:
I. National Standards
"Assessment Standard for Prefabricated Buildings" (GB/T51129-2017)
This standard was implemented on February 1, 2018, replacing the original "Assessment Standard for Industrialized Buildings" (GB/T51129-2015). Its core content revolves around the assessment system for prefabricated buildings, clarifying the definition, assessment principles, and grading standards for prefabricated buildings, providing a unified basis for quality assessment of prefabricated buildings nationwide."Appearance Quality Requirements and Dimensional Deviation Limits for Prefabricated Concrete Components Used in Prefabricated Buildings"
This standard was drafted in accordance with the provisions of GB/T 1.1—2020. The General Office of the Ministry of Housing and Urban-Rural Development issued a draft for comments on September 3, 2025, with the deadline for feedback being October 13, 2025. The standard focuses on regulating the appearance quality (such as surface flatness, cracks, honeycombing, etc.) and dimensional deviation limits of prefabricated concrete components, aiming to improve the production precision of components and ensure the structural safety and construction efficiency of prefabricated buildings.
II. Local Standards
"Assessment Standard for Prefabricated Buildings" (DB4401/T 151—2022)
This is a local standard in Guangzhou, issued on March 21, 2022, and implemented on April 15, 2022. This standard refines the assessment clauses in the national standard by taking into account Guangzhou's climate, geological conditions, and the development characteristics of prefabricated buildings. For example, it adds assessments of local requirements such as building energy efficiency and the application of green building materials, reflecting regional adaptability.
III. Engineering Construction Specifications in Shanghai
"Design Code for Monolithic Prefabricated Concrete Residential Building Systems"
Approved by the Shanghai Municipal Commission of Housing and Urban-Rural Development and Transport and edited by Tongji University, this code was implemented in 2010 (the specific month is not specified). The code focuses on the design aspects of monolithic prefabricated concrete residential buildings, covering general provisions, terminology, material selection, architectural design (such as floor plan layout and spatial combination), and basic requirements for structural design (such as load values and connection node design). It provides technical guidance for the design of prefabricated residential buildings in Shanghai and promotes the industrialization of local housing.
The above standards collectively form a comprehensive normative system for prefabricated assembly-type housing from design, production, to assessment, providing technical support for the high-quality development of the industry.
