in the case of any nonresidential building, including a church, for which the risk premium rate is determined in accordance with the provisions of
section 4014(a)(1) of this title, additional flood insurance in excess of the limits specified in subparagraphs (B) and (C) of paragraph (1) shall be made available with respect to any single such building, up to an aggregate liability (including such limits specified in subparagraph (B) or (C) of paragraph (1), as applicable) of $500,000, and coverage shall be made available up to a total of $500,000 aggregate liability for contents owned by the building owner and $500,000 aggregate liability for each unit within the building for contents owned by the tenant; and