I designed a standard 13D system for a new SFR in Hermosa Beach Ca.. The city of Hermosa Beach contracts with LA County for their fire protection. I received corrections requiring a 4 head calculation, heads in all compartments and attic, and under all exterior overhangs. They call it a modified 13D system. I spoke with the plans examiner and he stated this is an LA country requirement with approval from the city of Hermosa Beach. I asked for the amendment that allows this “modified 13D” system. He stated that because the SFR encroaches into the 5’ setback, it’s an alternate means and method, no amendment required. This is going to result in a significant cost increase. Is this situation legit? Owen Evans
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