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Monroe County, FL Building Safety: Building Permits (2026)

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

Key Facts

Governing section
Monroe County Code Sec. 6-100
General rule
Permit required unless table exempts it
Minor interior remodel exception
Under $2,500, no size/configuration change
No-exception zones
CBRS, flood zones AE and VE
Application authority
Building Official, Sec. 6-101

Summary

In the unincorporated Florida Keys (Monroe County), Section 6-100 requires a permit for every category of work listed in its table, including all new construction and remodeling of principal and accessory structures, unless a specific residential exception applies.

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

(a)Applicability. ... A permit shall be required for all work shown in the following table, except where specifically exempted this section. ... Any new construction and remodeling work of principal and accessory structures Interior remodeling where the fair market value of such work is less than $2,500.00 and there is no change in the original size or configuration.

Full Breakdown

Monroe County Code Section 6-100(a) states that a permit is required for all work shown in the section's table, except where the table specifically exempts it. The table covers site preparation, demolition, tie-downs, signs, fences, sheds, chickees, resource extraction, floodplain-regulated work, and any new construction and remodeling of principal and accessory structures. 00 are also carved out for residential work generally. The table's closing note overrides every listed exception for electrical, mechanical or plumbing work and for anything subject to floodplain regulation, and eliminates all exceptions for work below base flood elevation or within a Coastal Barrier Resource System or flood zones AE or VE.

Section 6-101 then governs the application itself: the owner or authorized agent submits a completed, signed application with the required fee and supporting drawings, and the Building Official issues the permit only after confirming it complies with the Florida Building Code, Chapter 6, and Part II of the county code as verified by the Planning Director. Section 6-104 lets the Building Official revoke a permit obtained through a false statement or issued in error.

Violations & Fines

Working without a required permit exposes the property to a stop-work order under Section 6-31 and treatment as an unsafe or illegal structure under Section 6-27; a permit obtained through a false statement or misrepresentation can be voided, suspended or revoked under Section 6-104.

Frequently Asked Questions

Do I need a permit for remodeling work on my house in unincorporated Monroe County?
Yes, unless it is interior remodeling valued under $2,500.00 that does not change the original size or configuration; Section 6-100's table requires a permit for all other new construction and remodeling of principal and accessory structures.
Are there work categories with no permit exceptions at all?
Yes. Fences, demolition, tie-downs of habitable structures, and sheds carry no residential exception in the Section 6-100 table, and floodplain-regulated work in a Coastal Barrier Resource System or flood zones AE or VE has no exceptions regardless of category.
Who issues the building permit?
The Building Official issues it under Section 6-101 only after confirming the application complies with the Florida Building Code, Chapter 6, and Part II of the Monroe County Code, as verified by the Planning Director.

Sources & Official References

Other rules in Monroe County

All Monroe County rules

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