Relief to the elevation or dry floodproofing standards may be granted for accessory structures containing no more than 600 square feet. Such structures must meet the following standards:
(A) They shall not be used for human habitation;
(B) They shall be constructed of flood resistant materials;
(C) They shall be constructed and placed on the lot to offer the minimum resistance to the flow of floodwaters;
(D) They shall be firmly anchored to prevent flotation;
(E) Service facilities such as electrical and heating equipment shall be elevated or flood proofed to or above the level of the flood protection elevation; and
(F) They shall meet the opening requirements of Sections 1266.27(E)(3);