Prefabricated House Renovation Plan

The renovation of prefabricated houses should be systematically advanced from three aspects: safety appraisal, plan formulation, and functional enhancement, in combination with policy requirements, housing conditions, and living needs.

I. Renovation Paths Under the National Policy Background

1. Safety Appraisal and Differentiated Disposal Local governments should organize professional institutions to conduct safety appraisals of prefabricated houses and take differentiated measures based on the appraisal results: severely dangerous houses should be immediately evacuated and demolished within a specified time limit; generally dangerous houses can be reinforced or demolished. For example, Handan City replaces residential buildings at a ratio of 1:1.1 and homestead houses at a maximum ratio of 1:1.2, with a guaranteed minimum area of 30 square meters per person, demonstrating policy flexibility.
2. Formulation of Renovation Plans In conjunction with urban planning, comprehensive plans should be formulated that include demolition and reconstruction, reinforcement and repair, and functional enhancement. For example, monetary compensation should be no less than 110% of the market price of surrounding commercial housing, and the housing voucher resettlement system should be gradually promoted to provide residents with diverse choices.
3. Optimization of Compensation Mechanisms Compensation methods include monetary compensation, property rights exchange, and housing voucher resettlement. Monetary compensation should cover market premiums; property rights exchange should clarify the replacement ratio and guaranteed minimum area; housing voucher resettlement can promote the de-stocking of regional real estate, and supporting policies should be improved to ensure fairness.

II. Special Measures for Renovation in Sichuan Region

1. Precise Investigation and Assessment For prefabricated houses built before the end of 2000, an electronic file should be established for each house following the process of “data collection—on-site inspection—structural testing—seismic appraisal—comprehensive assessment” to clarify the renovation priority.
2. Emphasis on Both Structural Safety and Functional Enhancement Focus on solving problems such as structural reinforcement, waterproofing and moisture resistance, and energy-saving insulation. For example, grouting is used to repair wall cracks, and steel plates are added to reinforce severely damaged parts; the roof is re-waterproofed, and insulation boards are added to the exterior walls; water and electricity pipelines are updated simultaneously to improve building energy efficiency.
3. Green, Low-Carbon, and Cost Control Priority should be given to the use of local materials and mature technologies to avoid excessive renovation. For example, recycled concrete or industrial waste building materials are used to reduce renovation costs; sustainability is improved through solar panels, rainwater collection systems, etc.

III. Practical Tips for Renovating Old Prefabricated Panel Buildings

1. Comprehensive Inspection and Precise Repair Commission a professional team to inspect problems such as wall cracks, steel bar corrosion, and foundation settlement. Small cracks are repaired by grouting, and large cracks are reinforced with steel plates; roof leaks require re-waterproofing; unstable foundations require piling or grouting reinforcement.
2. Functional Upgrades and Age-Friendly Renovations Add soundproof panels and double-glazed windows to improve sound insulation; optimize space utilization through reasonable layout; install elevators or barrier-free facilities to enhance convenience. For example, non-load-bearing walls are replaced with glass partitions to increase lighting and transparency.
3. Equipment Updates and Intelligent Renovations Replace old water and electricity pipelines, install smart meters and gas alarms; add community surveillance and emergency call systems to improve living safety.