According to the law, any building behavior (including the renovation of old houses) must be approved by the relevant land management departments. Moreover, according to Article 3 1 in Chapter 4 of the Regulations on Highway Management in People's Republic of China (PRC), "when building permanent engineering facilities on both sides of the highway, the distance between the edge of the building and the outer edge of the highway side ditch shall be no less than 20m for the national highway,15m for the provincial highway,10m for the county road and 5m for the township road." Your house has not been approved, and it is built on the side of the road. It does not conform to the law and should be demolished.

However, it is illegal for relevant demolition departments to demolish without legal procedures, and they can file an administrative lawsuit to confirm that the act is illegal (generally, compensation will not be supported, but it may just be illegal).

As for the problem of building houses with five guarantees, you can report to the land management department whether there are legal examination and approval procedures. If it does not need to be demolished, there are approval procedures to make suggestions on its violation of the highway law. If the administration does not act, it can bring a lawsuit to the court.

There are some irregularities in society that can be reflected through legal channels. We can't assume that the world is unfair just because it is unfair now. This view should not exist. You should trust the national laws. Governing the country according to law not only requires state organs to strictly abide by the law, but also depends on the people to supervise and abide by the law.