The old house downstairs demolished the balcony load bearing wall to the outside of the building and

But after all, the building is 20 years old, and if you want to seriously investigate the responsibility, you must ask a professional to identify what causes the water leakage, if it is the aging of the house and other reasons, the owner is responsible, and what impact he has on demolishing the wall can not be guessed. If his wall has been demolished for a long time before it starts to leak, it is difficult to say that it was caused by the demolition of the wall, and if a professional comes to identify the building because he demolished the wall and becomes a dangerous building, he will have to pay you money.

The downstairs requires the upstairs to bear the responsibility and bear the costs, and in accordance with the principle of "who claims, who presents evidence", the downstairs needs to provide evidence of the behavior that caused the water leakage of the house upstairs, otherwise the cost can only be borne by itself. Moreover, the downstairs has made major changes to the structure of the house, and the violation is in advance, so it is difficult to say that the behavior of the upstairs caused the house to leak.

Article 5 The following acts are prohibited in residential interior decoration activities: >>>More

It can be demolished, the key is how many floors you have, if it's the first floor, don't demolish it.

It can definitely be sued.

Load-bearing walls are not allowed to be demolished. >>>More