Collier County, FL Building Safety: Fire Sprinkler Requirements (2026)

1: automatic fire extinguishing systems must be installed under NFPA 13 in every new residential occupancy with more than four living units, and in any other building where sprinklers are required by the Code or by any standard listed in NFPA 1's Chapter 2. A carved-out exception lets residential buildings up to four stories in height use NFPA 13R, the lighter standard for residential occupancies, instead of full NFPA 13, when nothing else independently requires sprinklers. 1 requires the system to follow whichever standard fits the building, NFPA 13, 13R, or 13D for one- and two-family homes and manufactured housing, and hydraulic calculations based on a current flow test.

Monitoring rules differ by system size: control valves on sprinkler and fixed water-based suppression systems must be supervised by a UL-listed central-station, proprietary, or remote-station signaling service, except 13D systems in one- and two-family homes, whose control valves need only be chained and locked open. Any system installed voluntarily, not because the code required it, must still be built with a stub-out for future sprinkler protection on lanais, balconies, and canopies in residential occupancies, and a single dedicated backflow assembly may serve no more than two buildings.