Is it legal to wash your own car in the underground garage?

Legal analysis: It is illegal to open a car wash in an underground garage.

Legal basis: Article 49 of the Regulations on Property Management. Public buildings and facilities planned within the property management area shall not be changed.

Owners need to change the use of public buildings and facilities according to law, and shall inform the realty service enterprise after handling the relevant formalities according to law; If the realty service enterprise really needs to change the use of public buildings and facilities, it shall be submitted to the owners' meeting for discussion and approval, and the owners shall go through the relevant formalities according to law.