Existing nonconforming structures which are damaged or destroyed by fire, explosion, flood or other calamity may be reconstructed and insofar as is practicable shall conform to the required building setback lines along streets and highways and the yard, height, parking, loading, and access provisions of this chapter. The provisions of this subsection with respect to reconstruction are applicable only if the lot or parcel conforms to the existing Sanitary Code requirements or is serviced by public sanitary sewer. Pursuant to § 62.23(7)(hc), Wis. Stats., a nonconforming structure damaged or destroyed by violent wind, vandalism, fire, flood, ice, snow, mold or infestation after March 2, 2006, may be restored to the size, location, and use that it had immediately before the damage or destruction occurred, and no limits may be imposed on the costs of the repair, reconstruction, or improvement of said structure. The size of the restored structure may be larger than the size it was immediately before the damage or destruction if necessary for the structure to comply with applicable state or federal requirements.