In some older urban districts or rural areas, most houses lack professional maintenance, leading to an increasing aging of the buildings and eventually developing into dilapidated structures.

For these houses, damage or aging that naturally occurs during use can escalate into dangerous conditions, with a variety of quality issues. By the time we discover the danger, it's too late. Because when conducting safety assessments or reinforcement work on these dangerous houses, most of the issues found are extremely challenging.

Most people might assume that only houses with visible signs like ground cracking, walls leaning, wall peeling, and tile falling off are considered dangerous.

In fact, when evaluating the grade of the houses, most houses showing the aforementioned issues are already classified as medium or higher risk. Upon using professional detection equipment for an inspection, it becomes evident that the majority of the damage is in a dangerous state, with the load-bearing capacity of the structural components being relatively low.

For houses with obvious issues visible to the naked eye, it is a no-brainer that a house inspection would classify them as dilapidated. Typically, quality problems in houses are not initially visible, and professional house inspections are required to identify them. In fact, to keep tabs on a house's condition, regular assessments are recommended, especially for those "diagnosed" as dangerous structures.

According to the safety identification standards for dilapidated buildings, such buildings can be classified into different grades.

1. Deteriorating buildings must be analyzed and judged based on evidence provided by the identification unit. The application for approval by the municipal real estate management department or its authorized units is required.

2. For dilapidated buildings, construction plans should be arranged based on the degree of danger, the scope of impact, and specific conditions, categorizing them as light, serious, moderate, or urgent accordingly.

3. Hazards should be addressed promptly during regular maintenance to prevent accidents.

4. For dilapidated buildings and hazardous spots, effective measures should be taken after thorough investigation and confirmation to ensure safe occupancy.

Safety Assessment Standards for Dangerous Buildings Structure

1. To ensure occupancy, there is a basis for the identification of dangerous houses.

2. This standard applies to residential properties managed by real estate departments. The identification of units owned and privately owned houses can refer to this standard. This standard does not apply to industrial buildings, public buildings, high-rise buildings, or cultural heritage buildings.

3. The components referred to in this standard are load-bearing components; the structures mentioned are systems composed of load-bearing components.

4. Necessary tests and calculations should be conducted for important buildings or complex structures that are difficult to identify.

5. When there are significant differences in factors that constitute hazardous buildings across regions, local real estate management authorities may implement specific measures or supplementary regulations when enforcing this standard.

Building structure safety assessment mainly includes on-site inspections and off-site inspections.

On-site inspection items include: tilt, settlement, cracks, foundation, masonry structural components, wooden structural components, concrete structural components, steel structural components, etc.

If a house has any of the following conditions, the house structure safety appraiser should promptly entrust a house structure safety appraisal unit to conduct a house structure safety appraisal:

1. Foundations and main structures of houses with obvious sinking, cracks, deformation, or corrosion.

2. Buildings exceeding their designed service life for continued use.

3. Damage to the main structure of the building due to natural disasters or accidents such as explosions and fires.

4. Requires modification of the building's main structure or load-bearing elements, alteration of the building's usage function, or significantly increased load on the building.

5. Other situations that may pose a risk to the house safety requiring assessment.

Houses in the aforementioned situations, without certification or with certification that does not meet the safety conditions of the house, shall not be used as business venues.