Should the nonconforming structure be damaged or destroyed by fire, wind, tornado, earthquake, flood or other natural disaster, such structure may be reconstructed, provided that the new structure may not increase the dimensional nonconformities of the previous structure (including but not limited to nonconformities related to building setbacks, lot coverage and height limitations) and that such rebuilding does not increase the intensity of use. In the event of arson or other willful destruction, reconstruction of nonconforming structures shall be prohibited if such casualty is traceable to the owner or their agent. Such instances shall result in the forfeiture of the nonconforming status, and must subsequently be brought within all the prevailing restrictions applied to the surrounding district.