Nothing in this Subtitle shall be construed as rendering other applicable laws invalid. In any situation where a conflict exists between a provision of this Subtitle and another County code, law or regulation, the more stringent code shall apply. The property owner may petition in writing to the Office of the Fire Marshal when a conflict arises on the interpretation of the County-related Fire Codes. The Fire Marshal and appropriate head of the agency responsible for enforcing the conflicting provisions shall in concert resolve the conflict with reference to the circumstances of the case by determining which provisions shall apply. Conflicts that are irreconcilable shall be referred to the Fire Chief. The decision of the Fire Chief shall be final and in any matter relating to structures exclusive of fire safety, the decision of the Building Official shall be final, except that any person aggrieved by a decision of the Fire Chief shall have the right to appeal to the Board of Appeals.