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Nassau County, FL Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Adopted code
8th Edition (2023) Florida Building Code
Plumbing volume trigger
FBC Section 101.4.3
Permit requirement
FBC Section 105.1
Enforcing agency
Nassau County Building Department
Narrow exemptions
Leak stops, minor stoppage clearing, irrigation repair

Summary

Nassau County enforces plumbing work through the 8th Edition (2023) Florida Building Code, adopted wholesale by County Code Section 7-6. Under Florida Building Code Section 101.4.3, any installation, alteration, repair or replacement of a plumbing system, from fixtures to medical gas lines, must follow the Florida Building Code, Plumbing volume, and a Building Department permit is required before that work begins.

These county ordinances apply to unincorporated areas of Nassau County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

The Board of County Commissioners hereby adopts the 8th Edition (2023) Florida Building Code, in its entirety, with the following amendments to Chapter 1, Scope and Administration. ... 101.4.3 Plumbing. The provisions of the 8th edition, 2023, Florida Building Code, Plumbing shall apply to the installation, alteration, repair, and replacement of plumbing systems, including equipment, appliances, fixtures, fittings, and appurtenances, and where connected to a water or sewage system and all aspects of a medical gas system.

Full Breakdown

Section 7-6 has the Board of County Commissioners adopt the entire 8th Edition (2023) Florida Building Code, with only its Chapter 1 Scope and Administration amended locally, and that amended chapter is printed into the county code in full. 3 is one of the referenced-codes provisions in that chapter: it folds the Florida Building Code, Plumbing volume into county requirements for installing, altering, repairing or replacing plumbing systems, including equipment, fixtures, fittings and appurtenances connected to a water or sewage system, and it extends to every aspect of a medical gas system.

1, requiring any owner who intends to erect, install, enlarge, alter, repair, remove, convert or replace a plumbing system to first apply to the building official and obtain a permit. 2's Plumbing exemptions are narrow: stopping a leak in a drain, water, soil, waste or vent pipe (unless the pipe must be removed and replaced, which counts as new work); clearing stoppages or repairing leaks in pipes, valves or fixtures, including removing and reinstalling a water closet, so long as no valve, pipe or fixture is replaced or rearranged; and repairing a lawn irrigation system. 2.

Violations & Fines

Plumbing work performed without the required permit is subject to an increased permit fee under the local fee schedule once discovered, per Section 105.1, and the building official can issue notices or orders under Section 104.3 requiring the work be brought into compliance. Persistent noncompliance can be referred to Nassau County code enforcement before the Special Magistrate for fines under Chapter 1, Article III.

Frequently Asked Questions

Do I need a permit to replace a water heater or repipe my house?
Yes. Section 101.4.3 applies the Florida Building Code, Plumbing volume to any plumbing alteration, and Section 105.1 requires a Building Department permit before that installation or replacement work begins.
Is fixing a leaky faucet exempt from a permit?
Yes, stopping a leak in a drain, water, soil, waste or vent pipe is permit-exempt under Section 105.2, but if the pipe has to be removed and replaced, that is treated as new work requiring a permit and inspection.
What edition of the plumbing code does Nassau County use?
The 8th Edition (2023) Florida Building Code, Plumbing volume, referenced at Section 101.4.3 and adopted in full by County Code Section 7-6.
What happens if plumbing work is done without a permit?
The Building Department can assess an increased permit fee under the local fee schedule once the unpermitted work is discovered, per Section 105.1, on top of any code enforcement action.

Sources & Official References

Other rules in Nassau County

All Nassau County rules

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