International Existing Building Code Section 302 is hereby amended by the addition of a new Section 302.7 to read as follows:

. . . .F] 302.7 Buildings exceeding 10,000 square feet. An automatic sprinkler system shall be installed throughout all newly constructed buildings where the total floor area exceeds 10,000 square feet including basements. An automatic sprinkler system shall also be installed throughout existing buildings when an addition is made to the building and the total floor area, including the basements, of the existing building and the addition combined exceeds 10,000 square feet, or when the value of a structural alteration or repair of an existing building 10,000 square feet in area or greater exceeds 50 percent of the assessed valuation of such existing building, or exceeds 50 percent of the recognized replacement cost of the structure, without consideration of depreciation, as determined under the Marshall Valuation Service Cost Handbook, whichever is greater. For purposes of this section, portions of buildings separated by one or more fire walls shall not be considered a separate building. To the extent this section conflicts with any other provision of the International Building Code or the International Fire Code adopted by the City, this section shall control.