Section 903.2 Where required is hereby revised as follows:
903.2 Where required. Approved automatic sprinkler systems in buildings and structures shall be provided in the following locations:
1. New buildings: Notwithstanding any applicable provisions of Sections 903.2.1 through 903.2.19, an automatic fire-extinguishing system shall also be installed in all occupancies when the total building area, as defined in Section 202, exceeds 5,000 square feet (465 m2), or more than two stories in height, regardless of fire areas or allowable area.
2. New buildings in the VHFHSZ: An automatic sprinkler system shall be provided in all new structures in the VHFHSZ.
3. Existing buildings: Notwithstanding any applicable provisions of this code, an automatic sprinkler system shall be provided in an existing building when an addition occurs and when one of the following conditions exists:
a. When the addition is 50% or more of the existing building area and the resulting building area, as defined in Section 202, exceeds 5000 square feet (465 m²); or
b. When the addition exceeds 2000 square feet (185.81 m²) and the resulting building area, as defined in Section 202, exceeds 5000 square feet (465m²); or
c. An additional story is added above the second floor regardless of fire areas or allowable area.
Exception: Group R-3 occupancies. Group R-3 occupancies shall comply with Section 903.2.8.
Section 903.2.8 Group R is hereby revised as follows:
903.2.8 Group R. An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R fire area as follows:
1. New buildings: An automatic sprinkler system shall be installed throughout all new buildings.
2. Existing buildings: An automatic sprinkler system shall be installed throughout when one of the following conditions exist:
a. When an addition is 50% or more of the existing building area, as defined in Section 202, or greater than 1000 square feet (92.903 m2) within a two year period; or
b. An addition when the existing building is already provided with automatic sprinklers; or.
c. When an existing Group R Occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Code Official determines that the complexity of installing a sprinkler system would be similar as in a new building.
3. Existing buildings in the Very High Fire Hazard Severity Zone: An automatic sprinkler system shall be installed throughout when one of the following conditions exists:
a. When an addition is 33% or more of the existing building area, as defined in Section 202, or greater than 1000 square feet (92.903 m2) within a two year period; or
b. An addition when the existing building is already provided with automatic sprinklers; or
c. When an existing Group R Occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Code Official determines that the complexity of installing a sprinkler system would be similar as in a new building.
(Ord. 1187, passed 12-6-16; Am. Ord. 1211, passed 11-19-19; Am. Ord. 1233, passed 11-15-22)