In some older urban districts or rural areas, most houses lack professional maintenance, leading to increasingly evident signs of aging and eventually becoming dilapidated.

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 evaluations or reinforcement work on dangerous buildings, most of the issues encountered are extremely challenging.

Most people might assume that only houses with visible cracks in the ground, crooked walls, peeling wallpaper, or tiles falling off are considered dilapidated.

In fact, from the perspective of building grade, most houses displaying the aforementioned issues are already classified as medium to high-risk. Upon inspection with professional detection equipment, it would be revealed that the majority of damage is in a dangerous state, with the load-bearing capacity of the building's structural components being relatively low.

For houses with issues that are clearly visible to the naked eye, it is undeniable that a house inspection and evaluation will classify them as dilapidated. Generally, quality issues in houses are not initially visible to us, and professional house inspection and evaluation work is required to determine this. In fact, to know the condition of a house, regular assessments should be conducted, especially for those "diagnosed" as dangerous buildings.

According to the standards for identifying the safety of dilapidated buildings, these buildings can be categorized into different levels.

1. Deteriorating buildings must be analyzed and judged based on the evidence provided by the evaluation unit, and then submitted 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, the scope of impact, and specific conditions, categorizing them as light, severe, moderate, or urgent accordingly.

3. Hazards should be addressed promptly, combining regular maintenance to eliminate risks.

4. For dilapidated buildings and hazardous spots, effective measures should be taken upon investigation and confirmation to ensure safe habitation.

Safety Assessment Standards for Deteriorated Buildings

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

2. This standard applies to residential properties managed by real estate management 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 buildings of cultural heritage protection.

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 buildings or complex structures that are difficult to authenticate, necessary testing and calculations should be conducted.

5. When there are significant differences in the factors that constitute a dangerous house across regions, real estate management departments in various areas may implement detailed measures or supplementary regulations in accordance with this standard.

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

On-site inspection includes: tilt, 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 person responsible for the safety assessment of the house structure shall promptly entrust a house structure safety assessment unit to conduct a safety assessment of the house structure:

1. Foundation or main structure of the house showing significant sinking, cracks, deformation, or corrosion.

2. Houses exceeding the designed service life and requiring continued use.

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

4. Requires alteration of the building's main structure or load-bearing elements, changing the building's intended use, or significantly increasing the building's load.

5. Other potential scenarios requiring assessment for potential harm to the house's safety.

Houses in the aforementioned situations, which have not been inspected or have been inspected but do not meet the safety standards for the building, may not be used as business locations.