If your Naples view is framed by mangroves, you know how fast they grow and how valuable that shoreline is. You want to protect your property and your view, but you also want to follow the rules and avoid costly mistakes. This guide breaks down what you can do yourself, when you need a pro, which permits may apply, and how to stay compliant in Collier County. Let’s dive in.
Why mangroves matter
Mangroves stabilize shorelines, provide nursery habitat for fish, and help buffer storm impacts along Naples’ coast. Florida protects red, black, and white mangroves, and the Florida Department of Environmental Protection (DEP) provides clear guidance on their care and regulation. You can learn more about their role and protections on the DEP’s mangrove resource page.
Explore DEP’s mangrove overview
Who regulates in Naples
In Collier County, state law is primary. Florida’s Mangrove Trimming and Preservation Act sets the rules on definitions, exemptions, and permits, and DEP implements the program. Collier County and the City of Naples are not on DEP’s delegated list, so DEP’s South District handles mangrove trimming oversight locally.
- See the controlling law: Florida Statutes, Mangrove Act
- Confirm delegation status: DEP delegated governments list
Federal permits can also apply. If your work involves dredging, filling, navigation, or dock and channel impacts, coordinate with the U.S. Army Corps of Engineers in addition to the state.
- Check federal permitting: USACE Florida Regulatory
Local zoning, conservation easements, and HOA rules may add limits, but DEP still handles mangrove trimming permits in the Naples area.
Key rules for owners
Homeowner exemption basics
Some trimming is allowed without a state permit if you meet strict limits.
- The mangroves must be within a Riparian Mangrove Fringe, which is a band along the shoreline that is 50 feet deep or less measured from the most landward trunk to the most waterward trunk. Definitions are in state law.
- Each tree must be 10 feet or less in pre‑trim height.
- You cannot cut any tree below 6 feet measured from the substrate.
- No defoliation or herbicides.
Learn the definitions used for measurements: Statute definitions, including RMF
Review exemption limits: Exemptions and rules
If your shoreline is longer than 150 feet, exemptions typically limit trimming to no more than 65 percent of that shoreline.
PMT trimming limits
A DEP‑qualified Professional Mangrove Trimmer, or PMT, can trim under expanded exemptions when trees are taller, but limits still apply.
- Trees up to 24 feet pre‑trim height may qualify when a PMT performs the work, but no tree can be cut below 6 feet.
- For trees over 16 feet, trimming must be staged. No more than 25 percent of foliage can be removed in one year.
- For first‑time trimming of red mangroves under the PMT exemption, the PMT must notify DEP before work.
Find qualified PMTs: DEP’s state‑authorized PMT resource
Permits you may need
If your project exceeds exemption limits, you will likely need one of these:
- General permit. A PMT files a Notice of Intent, and work must follow strict limits, including the 6‑foot minimum height and shoreline percentage caps.
- Individual permit. Required for larger alterations, trimming below 6 feet, or when mitigation is needed. DEP may require planting or mitigation bank credits.
Start here for forms and the NOI: DEP forms and ERP portal
Actions to avoid
- Do not trim any tree below 6 feet unless an individual permit allows it.
- Do not remove, defoliate, or chemically treat mangroves.
- Do not cut prop roots or pneumatophores.
See specific prohibitions and limits: Exemptions and rules
Step‑by‑step checklist
Confirm ownership and boundaries. Determine if mangroves sit on your upland, on sovereign submerged lands, or within a conservation area. Boundaries matter for what you can do and where permits apply.
Measure depth and height. Check if your site is an RMF by measuring from the most landward trunk to the most waterward trunk. Measure tree height from the substrate. These numbers determine whether exemptions apply.
Decide if the homeowner exemption fits. If all criteria are met and you will keep trees at or above 6 feet, you may trim without a permit. When in doubt, ask DEP to verify.
Hire a PMT if needed. If trees exceed 10 feet or you need staged trimming, bring in a DEP‑qualified PMT who understands notifications, NOIs, and staging.
File paperwork. If your project needs a general or individual permit, submit the appropriate forms to DEP South District. Keep copies of filings and photos.
Follow best practices. Take before photos, mark cut heights above 6 feet, and schedule work in the lower growth period.
Coordinate other authorizations. If your plan affects docks, seawalls, channels, dredge or fill, contact the USACE and check any local or HOA requirements.
Forms and NOI: DEP forms and ERP portal
Penalties and enforcement
DEP enforces the Mangrove Act. Violations can bring fines, required restoration, and mitigation obligations, with higher penalties for repeat offenses. PMTs face separate penalties for repeated violations. Because penalty schedules can change, verify current figures directly in the statutes or with DEP.
Review enforcement provisions: Florida Statutes 403.9332
Best season and tips
DEP recommends trimming between October and March to reduce stress on trees. For tall trees that need staged work, space cuts so you do not remove more than 25 percent of foliage in a single year. Avoid nesting areas and never use herbicides or sealants on cuts.
Timing guidance and FAQs: DEP mangrove FAQ
Buying or selling with mangroves
If you are planning to buy or sell a Naples waterfront property with mangroves, build trimming rules into your due diligence. Confirm prior trimming history, take current photos, measure heights and RMF depth, and identify whether future view management will require a PMT or permits. Align timelines with DEP review windows if any filings are needed during your ownership or before closing.
When you want a smooth transaction that respects both the shoreline and your lifestyle goals, connect with a local advisor who understands waterfront specifics. For trusted guidance on Naples and Marco Island waterfront homes, condos, and slips, reach out to The Sprigg Group.
FAQs
Can I trim mangroves myself to improve my view?
- Yes, if your mangroves are in a Riparian Mangrove Fringe of 50 feet or less and each tree is 10 feet or less pre‑trim, but you must keep every tree at or above 6 feet and avoid defoliation.
When do I need a Professional Mangrove Trimmer?
- You will need a PMT for taller trees, staged trimming over multiple years, or any trimming beyond basic homeowner exemptions, and a PMT is required for work under a general permit.
Do I need a permit to work near my dock or seawall?
- Possibly; if trimming is beyond exemptions or if work affects navigation, dredge or fill, or structure maintenance, you may need DEP authorization and USACE coordination.
What happens if someone trims illegally?
- DEP can require restoration and assess fines, with higher penalties for repeat violations; document the issue with photos and contact DEP promptly.
