Help with your seawall project·Upper Keys
Key Largo & the Upper Keys

Seawall permits.
Know who reviews what.

Start with the parcel and a complete work description. In the Upper Keys, local building review, environmental review and sanctuary authorization can be separate steps.

About 4 min readOfficial sources linked below

Which local office handles the property?

Start with the property jurisdiction
LocationLocal starting pointBring
Unincorporated Key Largo and county parcels in Tavernier
Monroe County Building, 305-453-8800
Address, parcel ID, survey and full marine scope.
Ocean Reef / North Key Largo
County Ocean Reef office, 305-453-8765
Parcel and access information; private-community approval is separate.
Inside Islamorada
Village Building Services / CityView
Parcel, existing plans and proposed work; do not rely on a Tavernier mailing address.

Monroe County Building and Permitting · Monroe County Ocean Reef office · Islamorada Building Services

Keep four approval questions separate

Who to contact and why
ReviewQuestion
County or Village
What building, zoning, floodplain and inspection requirements apply?
Florida DEP
Does the scope need ERP review, exemption verification or submerged-lands authorization?
U.S. Army Corps of Engineers
Which current federal authorization applies to these waters and this scope?
NOAA sanctuary
Is sanctuary authorization required, and is the resource survey complete?

DEP Marathon: 305-289-7070. Corps Keys Permits Section: 305-526-7181.

DEP Southeast District Marathon branch · USACE regulatory offices and requests · Florida Keys sanctuary nearshore construction

Prepare one consistent project package

  • Survey with boundaries, shoreline features and the named elevation datum.
  • Plans showing existing and proposed walls, docks, lifts, returns and waterward limits.
  • The repair method and equipment access, including barges if proposed.
  • Existing authorizations and permit conditions.
  • Habitat or benthic information requested by the reviewing agencies.

NOAA’s complete-submission checklist asks for plans, state approval, a benthic survey if applicable and federal approval if applicable. Send nearshore inquiries to fknms.authorizations@noaa.gov.

NOAA nearshore submission checklist · Benthic resource assessment surveys

How do you keep several approvals in sync?

A small approval tracker prevents missed handoffs
RecordWhat to enter
Agency and reference
Responsible office and application or permit number.
Drawing version
The date and revision submitted to that reviewer.
Open item
Missing document, technical question or outstanding condition.
Next action
Named person, due date and evidence that closes the item.

Use one coordinator to track the whole package. If a wall face, access method or dock connection changes, ask that person which reviewers need the revised plans. A status update should say what is still needed, not only that an application was submitted.

An issued permit may not be permission to start

Read every condition on the county permit. For permits conditioned on outside agency approvals, the county’s 2022 handout says construction and inspections cannot begin until its Notice to Proceed is issued. Separately, NOAA says holders of Corps nationwide or general permits must submit their materials for sanctuary authorization review.

Notice To Proceed Instructional Handout (Internet Archive copy) · Corps permits and sanctuary review

Where do you find the county’s conditions and comments?

In OPAL, open the application or permit and select Conditions, then the individual condition name. Reviewer comments are under Plan Reviews → View Plan Comments. These are different checks; an issued status should not be read without its conditions.

Save the applicable comments and record the response against each item. If a requirement is unclear, ask the listed review team to explain the document or action it needs rather than uploading a guessed replacement.

Monroe County OPAL conditions and review comments

What if someone says the repair is exempt?

Ask which agency, which provision and which exact scope the statement covers. DEP offers written exemption verification. Monroe’s 2026 limited-work notice has structural-work and flood-zone restrictions; its dollar threshold is not a general seawall exemption. Keep the written determination with the plans.

DEP ERP e-Permitting · Monroe County limited-work exemption notice

How much and how long?

The county publishes valuation-based fees plus conditional charges. Its linked schedule lists a $976 Notice to Proceed fee when that procedure applies. See the fee examples and limitations.

Request a schedule that separates document preparation, agency questions, permit issuance, start authorization, construction and closeout. No universal review duration is established here; an incomplete sanctuary package does not enter NOAA’s review queue.

Resolution 277-2025: conditional fees · Corps permits and sanctuary review

What belongs in a realistic approval schedule?

NOAA’s general permit guidance calls for construction permit applications at least 90 days before the requested effective date. That is submission lead time, not a promised approval duration. Confirm the procedure for your nearshore authorization with the sanctuary coordinator.

  • Allow for survey and design before the application package is ready.
  • Identify dependencies between agency submissions and outside approvals.
  • Keep construction access and material ordering tied to the required authorizations.
  • Recheck the schedule if the footprint or survey needs change.

Florida Keys sanctuary permit timing

Use the agencies for the final determination

Upper Keys Seawall provides project guidance and contractor referrals. Use these public contacts to prepare your questions and confirm requirements with the agency responsible for your property.

Official permit resources

Find the permit office for your property
City or countyPermit officeOfficial source
Unincorporated Monroe County
Islamorada
Florida DEP
U.S. Army Corps
NOAA sanctuary
Show sourcesHide sources
  1. Monroe County Building and PermittingSource reviewed 2026-10-25
  2. Islamorada Building ServicesSource reviewed 2026-10-25
  3. DEP Southeast District Marathon branchSource reviewed 2026-10-25
  4. USACE regulatory offices and requestsSource reviewed 2026-10-25
  5. Florida Keys sanctuary nearshore constructionSource reviewed 2026-10-25
  6. Notice To Proceed Instructional Handout (Internet Archive copy)Source reviewed 2026-11-05
  7. Monroe County OPAL conditions and review commentsSource reviewed 2026-10-26
  8. DEP ERP e-PermittingSource reviewed 2026-10-25
  9. Resolution 277-2025: conditional feesSource reviewed 2026-10-25
  10. Florida Keys sanctuary permit timingSource reviewed 2026-10-26

Let’s move your project forward.

Tell us where your property is and what needs attention.

Start with what you know. We’ll help you work out the next step.