Brookhaven, NY Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Size trigger
- Over 12,000 sq ft gross area
- Renovation trigger
- Over 50% of floor area modified
- Care facilities
- Sprinklers required regardless of size
- Permit authority
- Chief Fire Marshal
- Fine
- $500 to $1,000 per day
- Testing
- Annual report to Fire Prevention
Summary
A new building in Brookhaven, house or otherwise, needs an automatic fire sprinkler system once it exceeds 12,000 square feet of gross floor area, per Town Code § 30-27. The same threshold catches additions and major renovations that push an existing building over that size, and nursing and adult homes need sprinklers regardless of size under § 30-28.
Every new building or structure exceeding 12,000 square feet in gross area within exterior walls, fire walls notwithstanding, shall be protected throughout by an approved automatic fire sprinkler system. Every existing building exceeding 12,000 square feet in gross area within exterior walls, fire walls notwithstanding, in which greater than 50% of the floor area is modified, shall be protected throughout by an approved automatic fire sprinkler system. Every existing building with a gross area of less than 12,000 feet which is added to so that when the addition is completed, the building will have a floor area exceeding 12,000 square feet in gross area within exterior walls, fire walls notwithstanding, shall be protected throughout by an approved automatic fire sprinkler system.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4966897; v79 updated 2026-05-28; through 05-28-2026).
Full Breakdown
Chapter 30, Article III of the Brookhaven Town Code sets a size-based sprinkler mandate rather than a blanket residential rule. A(2) and A(3). Separately, § 30-28 requires sprinklers in 'every nursing home, convalescent home, old-age home, adult home or other home or structure used for the inpatient care of' sick, infirm, or convalescent persons, no matter the square footage. Before any sprinkler, fire alarm, or other water-based fire protection system is installed or altered, § 30-29 requires a permit from the Chief Fire Marshal, and § 30-30 bars treating the system as approved until the Division of Fire Prevention inspects it and issues a certificate of compliance.
1 requires an annual testing report submitted to the Division of Fire Prevention. Most single-family homes never approach the 12,000-square-foot trigger, so the rule mainly reaches large custom homes, additions, and licensed care facilities.
Violations & Fines
Chapter 30's general penalty section, § 30-16, applies here: violating the sprinkler mandate, the permit requirement, or any Chief Fire Marshal order carries a fine of $500 to $1,000 per day of violation, up to 15 days' imprisonment, or both, plus a separate civil penalty of $500 to $1,000 per day. A violation creating a substantial risk of serious physical injury is a misdemeanor punishable by $1,000 to $2,500 or up to three months in jail.
Frequently Asked Questions
Does my single-family house need a sprinkler system in Brookhaven?
What triggers the sprinkler mandate for an existing home?
Who permits and inspects a Brookhaven sprinkler installation?
What are the penalties for skipping a required sprinkler system?
Sources & Official References
Other rules in Brookhaven
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Fire Sprinkler Requirements in Nearby Cities
How other cities in Suffolk County handle fire sprinkler requirements.