Fort Walton Beach · Condo Building
Sea Dunes Condos for Sale
Twenty-four homes share 663 Nautilus Court in Fort Walton Beach, Okaloosa County: the Sea Dunes condominium, completed in 2006.
Updated
2006
Year Built
24
Total Units
Year built, floor and unit figures are as published by the sources cited at the foot of this page. Confirm them against the association's own documents during diligence.
About Sea Dunes
Every one of the 24 homes at Sea Dunes carries a 2006 year built, and all sit under one condominium series at 663 Nautilus Court. Unit numbers run from 101 through 104 on the lowest level to 601 through 604 on the highest, four to a level, so the numbering alone points to six levels. The roll's living-area figures sort the homes into three sizes: six units ending in 01 at 1,251 square feet, twelve ending in 02 or 03 at 1,208, and six ending in 04 at 1,452. The same size repeats on every level, which means a home's level and position, not its floor plan, is the variable that changes between neighbors.
Drawn on the state map, the site covers about 0.6 acre, and one shared outline serves all 24 titles. Measured against FEMA's current flood layer, roughly three quarters of it lies in VE, the coastal high-hazard zone, at a base flood elevation of 15 feet, and the other quarter in AO with a flow depth of 3 feet. A 1991 control line from the state's coastal construction program also cuts through part of that outline. With one shape standing in for every home, no map can tell you which level or line of units falls in which zone; the building's elevation certificate and an insurance quote can.
The owners association is a nonprofit chartered February 3, 2006 under Sunbiz document N06000001194 and listed as active. Its record also notes a reinstatement dated October 17, 2023, followed by annual reports for 2024, 2025 and 2026. On the milestone calendar, a building of three habitable stories or more first cleared for use in 2006 turns thirty in 2036, and Florida law lets the local enforcement agency pull that forward to age 25. Budgets, rules and reserves sit in the association's own files, which this page has not seen.
HOA & Fees
What is the HOA fee at Sea Dunes?
As of November 11, 2026, the 2 Sea Dunes condos for sale that report a fee on the MLS list HOA fees from $1,396 to $1,678 a month, with a median of $1,537 a month. Fees vary with unit size and type, so the fee for a specific residence is the one its listing and the association state.
Based on 2 active MLS listings that report an HOA fee.
A major roof, window, waterproofing or structural project at a 24-owner building is divided among few owners, so ask how each share is set in the declaration and the adopted budget. Section 718.112(2)(g) of the Florida Statutes sends buildings three habitable stories or higher through a structural integrity reserve study, and budgets adopted from December 31, 2024 on may not zero out or trim the listed reserves where an owner-controlled association must obtain one. Ask the board for the study and the latest adopted budget, plus how the insurance deductible is allocated. Also ask the board what led to the 2023 reinstatement, and read the minutes from that period.
Rental Policy
Short-term rentals: allowed. Confirm the current minimum stay and registration with the association.
The Sea Dunes rental provisions are still unread. The declaration and its amendments may set a minimum stay, an owner approval step, guest registration and parking limits. Ask the Sea Dunes association to furnish them. Do this before relying on an old listing or on how a neighbor uses a unit. Licensing and tax registration for a short stay come from public agencies. The association does not issue them. Ask those public agencies directly.
Live Inventory
Active Listings at Sea Dunes

$875,000
663 Nautilus Court Unit 304
Fort Walton Beach, FL 32548

$675,000
663 Nautilus Court Unit 202
Fort Walton Beach, FL 32548
The short-term rental badge above is not a permission of record. It reflects the MLS short-term-rental field where a listing discloses one, and otherwise where the home sits. Confirm the association's current rules and the local registration requirement before relying on it.
Building Answers
Sea Dunes FAQ
How much is the HOA fee at Sea Dunes?
As of November 11, 2026, the 2 Sea Dunes condos for sale that report a fee on the MLS list HOA fees from $1,396 to $1,678 a month, with a median of $1,537 a month. Fees vary with unit size and type, so the fee for a specific residence is the one its listing and the association state.
How many units are in the Sea Dunes condominium in Fort Walton Beach?
Twenty-four parcels carry the condominium use code at 663 Nautilus Court, one residence apiece. Numbers run 101 through 104 on the lowest level up to 601 through 604 on the highest, four per level, so the count and the six-level pattern agree with each other.
What sizes are the Sea Dunes residences?
The roll shows three living areas: 1,251 square feet for the six units ending in 01, 1,208 for the twelve ending in 02 or 03, and 1,452 for the six ending in 04. Each size repeats on all six levels, so level and position separate comparable homes more than layout does.
Which FEMA zones cover the Sea Dunes site?
Two: VE with a base flood elevation of 15 feet over roughly three quarters of the outline, and AO with a depth of 3 feet over the rest. All 24 titles share one outline, so the map cannot assign a zone to a single home. Use the building's elevation certificate and current insurance quote for that.
When does Sea Dunes reach its first milestone inspection?
With 2006 on the roll, the thirtieth year is 2036, and for a building of three habitable stories or more the first structural inspection falls due by December 31 of it, counted from the building's original use certificate. Statute 553.899 allows the local agency to choose year 25, which here would be 2031. The association can say whether any date has been set.
Is the Sea Dunes owners association active with the state?
Yes, as of this check. Sunbiz shows Sea Dunes/Okaloosa Island Condominium Owners Association, Inc. under N06000001194 with a February 3, 2006 filing date, a reinstatement on October 17, 2023, and annual reports for 2024, 2025 and 2026. Those are filings only; they say nothing of finances or rules.
Sources
- Florida statewide cadastral, Sea Dunes condominium unit parcels (accessed October 17, 2026)
- FEMA National Flood Hazard Layer, Sea Dunes site outline (accessed October 17, 2026)
- Florida DEP coastal construction control line, Okaloosa County (accessed October 17, 2026)
- Florida Division of Corporations, Sea Dunes owners association (accessed October 17, 2026)
- Florida Statutes 553.899, milestone structural inspections (accessed October 17, 2026)
- Florida Statutes 718.112, structural integrity reserve study (accessed October 17, 2026)
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