Is it possible to directly demolish residential board houses?

You can't. Property can't forcibly tear down the owner's things. The responsibility of the property is to inform the owners of illegal buildings that their illegal buildings have harmed the rights and interests of other owners, but they cannot take compulsory action to prohibit construction or ban it. The property has no compulsory law enforcement power, and can only issue rectification notices and exhortations. The owner should seek the relevant government administrative departments for illegal construction, and the property has the obligation to assist the owner to seek relief from law enforcement departments.