In case any building or structure is erected, constructed, altered, repaired, converted or maintained or any building, structure or land is used in violation of this chapter or of any ordinance or regulation made under authority conferred hereby, the Building Inspector, in addition to all other existing remedies, may institute appropriate legal action to prevent such condition, to restrain, correct or abate such violation, to prevent occupancy of such building, structure or land or to prevent any illegal act, conduct, business or use.