Renovation of Prefabricated Slab Houses in Ningbo
The renovation of prefabricated slab houses in Ningbo is based on structural inspections and follows the principle of 'repair as the priority and partial demolition as the supplement'. It promotes functional upgrades through cost-sharing among the government, property owners, and society. The specific measures are as follows:
1. Renovation Core: Structural Safety Assessment and Targeted Treatment
The first step in the renovation of prefabricated slab houses in Ningbo is structural safety inspection, focusing on checking for cracks, deformations, or aging issues in key areas such as the joints of prefabricated slabs, load-bearing walls, and foundation settlement. For example, Beilun District's Beijixing Village, a typical hollow prefabricated slab building, has suffered from roof damage, pipe corrosion, and wall leakage due to long-term disrepair. Before renovation, a professional institution is required to assess its structural stability and then decide on 'repair and reinforcement' or 'demolition and reconstruction'. According to the Ministry of Housing and Urban-Rural Development's 'Special Action Plan for the Investigation and Rectification of Safety Hazards in Old Prefabricated Slab Buildings', Ningbo has included such houses in the scope of key inspections since 2022 to ensure that the renovation plan is scientifically feasible.
2. Renovation Model: Multi-Party Cost-Sharing for 'Repair Without Demolition'
The renovation of old residential areas in Ningbo adopts a multi-funding model of 'property owner contribution + government subsidy + social investment' to avoid overburdening a single entity. The renovation covers residents' pain points, such as elevator installation, smart access control addition, parking space optimization, and pipeline updates, but in principle, no overall demolition is carried out. Instead, living functions are improved through repairs. For example, although Beijixing Village has not yet decided on 'demolition' or 'repair', if repair is chosen, the government will subsidize part of the costs, property owners will share the remaining costs proportionally, and social capital can participate in the construction of public facilities such as shared gardens, forming a sustainable renovation mechanism.
3. Policy Support: Government-Led and Special Action-Driven
The Ningbo Municipal Government and the Haishu District Government have long invested funds and manpower in the renovation of old residential areas built before the 1990s, but early efforts mainly focused on surface painting with limited effects. After 2022, the Ministry of Housing and Urban-Rural Development, together with multiple departments, launched a special action, and Ningbo simultaneously upgraded its renovation strategy, shifting from 'cosmetic projects' to 'substantive projects' and focusing on addressing structural hazards and functional shortcomings of prefabricated slab houses. For example, the renovation of Beijixing Village needs to comply with the requirements of the special action, prioritizing the repair of infrastructure such as roofs and pipelines, and then deciding whether to reinforce the prefabricated slabs or carry out partial reconstruction based on the assessment results.
4. Typical Case: 'Undetermined Repair or Demolition' and Renovation Direction of Beijixing Village
As a representative of hollow prefabricated slab buildings, the renovation path of Beijixing Village has reference value. Currently, the village faces problems such as roof decay, pipe aging, and wall leakage, but it has not yet been determined whether to 'repair' or 'demolish'. If repair is chosen, structural reinforcement is required to extend its service life; if demolition is necessary, it must meet the criteria for 'major safety hazards' specified in the special action. Regardless of the plan, Ningbo emphasizes resident participation in decision-making. Renovation needs are fed back to government departments through a process to ensure that the plan meets actual needs.
