Production Process of Prefabricated Housing in Hong Kong

The production process of prefabricated housing in Hong Kong (such as the "Simplified Public Housing") combines modular construction technology with a Guangdong-Hong Kong collaboration model, primarily divided into four stages: design, production, assembly, and acceptance. It features short construction periods, high precision, and environmental friendliness.

1. Design and Standard Setting

Hong Kong leads in setting technical standards and modular construction (MiC) specifications, integrating British standards with local regulations to ensure designs meet local needs. For example, the Ma On Shan Heng Kwong Street project, a collaboration between the Hong Kong Architectural Services Department and the joint venture of China Construction Science and Industry Corporation, optimizes design resources through institutional alignment. The design phase requires defining the dimensions, interfaces, and functional divisions of modular components to provide a precise blueprint for subsequent production.

2. Factory Prefabrication

Production takes place at intelligent manufacturing bases in Guangdong (such as the Huizhou China Construction Science and Industry base), relying on highly automated production lines for industrial manufacturing:

• Structural Components: Ceilings, floors, walls, etc., are prefabricated on assembly lines using welding robots and intelligent equipment, with errors controlled to the millimeter level;
• Interior Finishing: Bathroom waterproofing, plumbing and electrical systems, kitchens, and windows are integrated in the factory, reducing on-site construction steps;
• Quality Control: Each module comes with an "ID card" (including project name, model, production date), enabling full-process traceability to ensure quality.
  Guangdong factories leverage supply chain advantages and industrial worker resources to synchronize with on-site construction in Hong Kong, shortening the overall project duration.

3. Logistics and On-Site Assembly

• Transportation Coordination: Prefabricated modules are transported to Hong Kong construction sites via an efficient logistics system, using a "Hong Kong front desk + Guangdong back office" mechanism to dynamically adjust transportation and construction schedules;
• Module Hoisting: On-site, tower cranes and other equipment precisely hoist modules into place, such as the Ma On Shan project, which rapidly assembled high-rise buildings using MiC technology;
• Structural Connection: Modules are connected using cast-in-place techniques to enhance overall stability while reducing on-site noise, dust, and construction waste.

4. Acceptance and Delivery

Upon project completion, strict quality inspections are conducted, covering structural safety, finishing quality, and environmental indicators. For example, the "Simplified Public Housing" initiative has delivered nearly 13,000 residential units, significantly improving living conditions for grassroots residents (e.g., spacious interiors, good lighting, enhanced safety).

Process Advantages:

• Shortened Construction Period: Construction time is reduced by over 60% compared to traditional buildings (e.g., a Shenzhen public housing project was completed in 1 year instead of 2.5-3 years);
• Controlled Quality: Factory production minimizes human errors, achieving millimeter-level module precision;
• Environmental Protection and Energy Efficiency: On-site work is reduced by about 50%, lowering disruption to residents;
• Efficient Collaboration: Guangdong and Hong Kong achieve deep cooperation through technology sharing and standard alignment.