What is the reason for scratching in the wall?

Probably a mouse. Rats like to drill around, scratch and bite.

Matters needing attention in old residential areas

1. To buy an old residential area, we should first pay attention to the nature of the house and see whether it can be listed and traded, such as whether the delivery center has the conditions for listing and trading, whether the public welfare house of the unit has been renovated, including whether it has the conditions for trading, whether it involves inheritance, whether there are unpaid public maintenance, property fees, utilities, whether there are tenants in the house who are traveling and signing rental contracts, and so on.

2. Whether the purchased residential area is a self-managed building by the unit, many factories and units no longer exist, resulting in almost zero property services in some residential areas, no greening in the residential areas, littering and littering bicycles in the corridors.

Be careful when buying such a house. If it is an old community managed by one unit or jointly managed by several units, some are managed by their own housing management offices, and some are managed by third-party property companies. At least if something goes wrong, someone will solve it, and the public security and environment of the community will be improved.

3. Property delivery, compared with relatively new commercial housing projects, I think this piece is particularly important. Except for the water, electricity and sanitation expenses of the property mentioned in the first point, it needs to be settled in advance. Indoor immobile structures and facilities, such as pipes, walls, doors and windows, ceilings, etc. , are important areas that need to be observed, especially the bathroom and kitchen, whether there is water leakage and whether the pipeline has potential safety hazards due to aging. Don't despise them.