Fire Sprinkler Requirements: Fairfax vs Herndon
How do fire sprinkler requirements rules compare between Fairfax, VA and Herndon, VA?
Fairfax and Herndon have similar restriction levels.
Fairfax, VA
Fairfax County
Fairfax County follows the Virginia Uniform Statewide Building Code requiring automatic fire sprinklers in new high-rises, multifamily housing over three stories, and most commercial occupancies, with FCFRD plan review and acceptance testing mandatory.
View full Fairfax rules →Herndon, VA
Fairfax County
Fairfax County follows the Virginia Uniform Statewide Building Code requiring automatic fire sprinklers in new high-rises, multifamily housing over three stories, and most commercial occupancies, with FCFRD plan review and acceptance testing mandatory.
View full Herndon rules →Key Facts Comparison
| Fact | Fairfax | Herndon |
|---|---|---|
| Code basis | VA USBC Part 1 | VA USBC Part 1 |
| Standards | NFPA 13, 13R, 13D | NFPA 13, 13R, 13D |
| Trigger | Over three stories | Over three stories |
| Reviewer | FCFRD Fire Marshal | FCFRD Fire Marshal |
| Single-family | Not state-mandated | Not state-mandated |
Highlighted rows indicate differences between cities.
Fairfax FAQ
Are sprinklers required in single-family homes in Fairfax County?
No, Virginia state law preempts local single-family sprinkler mandates, though builders may voluntarily install NFPA 13D systems for insurance discounts.
Who inspects existing sprinkler systems?
Building owners contract with licensed sprinkler contractors for annual NFPA 25 inspections; FCFRD audits records and conducts spot inspections.
Herndon FAQ
Are sprinklers required in single-family homes in Fairfax County?
No, Virginia state law preempts local single-family sprinkler mandates, though builders may voluntarily install NFPA 13D systems for insurance discounts.
Who inspects existing sprinkler systems?
Building owners contract with licensed sprinkler contractors for annual NFPA 25 inspections; FCFRD audits records and conducts spot inspections.
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