In case any building or structure is or is proposed to be erected, constructed, reconstructed, altered, maintained or used or any land is or is proposed to be used in violation of this article or of any regulation or provision of any regulation or change thereof enacted or adopted by the County government, the attorney thereof, or any owner of real estate within the district in which such building, structure or land is situated, may, in addition to other remedies provided by law, institute injunction, mandamus, abatement or any other appropriate action or actions, proceeding or proceedings to prevent, enjoin, abate or remove such unlawful erection, construction, reconstruction, alteration, maintenance or use.