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 unsafe structures.

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

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

In fact, when it comes to the classification of buildings, most buildings showing the aforementioned issues are already considered medium to high-risk. Upon inspection with professional detection equipment, it becomes evident that the majority of the damage is in a dangerous state, with the load-bearing capacity of the building's structural components being relatively low.

For properties with issues that are clearly visible to the naked eye, it is a no-brainer that a house inspection would classify them as unsafe. Generally, quality issues in houses are not immediately apparent and require professional house inspection services to be identified. In fact, to keep tabs on the house's condition, regular assessments are recommended, especially for those "diagnosed" as dangerous structures.

According to the safety evaluation standards for dilapidated buildings, such buildings can be categorized into different levels.

1. Deteriorating buildings must provide the basis for analysis and comprehensive judgment by the identification unit, and submit it for approval by the municipal real estate management department or its authorized unit.

2. For dilapidated buildings, construction plans should be arranged based on the degree of danger, scope of impact, and specific conditions, prioritizing them into light, serious, moderate, and urgent categories respectively.

3. Hazardous points should be addressed promptly, integrating them into regular maintenance to eliminate risks.

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

Safety Assessment Standards for Dangerous Building Structures

1. To ensure habitation, the identification of dangerous houses is based on certain criteria.

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

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

4. For important houses or complex structures that are difficult to identify, necessary tests and calculations should be conducted.

5. When there are significant differences in factors that constitute hazardous houses across regions, local real estate management departments may implement detailed measures or supplementary regulations while enforcing this standard.

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

On-site inspection includes: inclination, settlement, cracks, foundation, masonry structural components, wooden structural components, concrete structural components, steel structural components, etc.

When 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 or main structures of houses showing significant sinking, cracks, deformation, or corrosion.

2. Structures exceeding their designed service life and requiring continued use.

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

4. Requires alteration of the main structure or load-bearing components of the building, change in the building's use function, or significantly increased building load.

5. Other situations that may pose a threat to the safety of the property requiring assessment.

Houses with the aforementioned conditions, which have not been inspected or have been inspected but do not meet the safety requirements for housing, may not be used as business locations.