865 Sea Dune LN, MARCO ISLAND, FL 34145

$6,125,000

Presenting possibly the most impressive custom-built architectural masterpiece on one of the largest lots in prestigious Hideaway Beach with an outstanding location close to the beach and luxurious community amenities. Standing proudly at nearly 5,000 square feet of air-conditioned living space and more than 11,000 square feet under roof on… Read More a very private homesite encompassing almost three-quarters of an acre, this home features five bedrooms plus an office, five full baths, and one half bath. The first floor includes two air-conditioned garages with epoxy flooring and dual 6,000-pound car lifts, accommodating up to 11 cars. From the moment you approach, the home’s grandeur is undeniable, with two paver driveways, elegant landscape lighting, a durable metal roof, and impact turtle glass complementing its stately presence. The interior is a testament to luxury and comfort, boasting high-end designer furnishings, porcelain wood-like tile floors throughout, exquisite lighting, and finished with bleached oak and white shiplap, creating an ambiance of refined coastal elegance. Ascend via the three-stop elevator or take the oak staircase with LED-lit steps to unveil a gourmet kitchen featuring bespoke white cabinetry, waterfall-edge quartzite countertop, two large center islands, a butler’s pantry, and top-tier Wolf and Sub-Zero appliances. The adjacent living room, with its 28-foot cathedral ceiling, one-of-a-kind floating beam design, and oak textured media wall with fireplace, opens to an expansive lanai offering views of the 43-foot pool with a spa and sun shelf. This outdoor haven includes an outdoor kitchen with a built-in gas grill and beverage cooler, gas fireplace, and covered living spaces that epitomize luxury living. The owner’s suite is a private retreat with an LED-lit beam ceiling, a spa-like en-suite, and a private balcony overlooking the heated pool and waterways. The three guest bedrooms on this floor each have en-suite baths and one featuring four built-in bunk beds, accommodating guests in style. The third floor houses a fourth guest bedroom, a full bath, and a versatile office/media room with a wet bar and access to the fourth-floor observation deck showcasing stunning beach, water, and sunset views. Additional features such as a bar in the dining area, Control4 automation system, intricate ceilings, and a whole-home generator underscore the no-expense-spared approach to this home. Residents of Hideaway Beach enjoy ample amenities including access to over two miles of pristine beach, an elegant clubhouse with a swimming pool and both casual and fine dining overlooking the beach, a beautiful nine-hole executive golf course, tennis and pickleball courts, and a spectacular brand-new sports center in progress. The community also offers an extensive activity and event calendar, and the security of gated, patrolled grounds. This one-of-a-kind property offers a rare opportunity to own a very special piece of Marco Island paradise! Read Less

Listing courtesy of Premier Sotheby's Int'l Realty.

Listing Snapshot

Days Online

Last Updated

Jul 20, 2026

Property Type

Single Family Residence

Beds

Full Baths

Partial Baths

Square Ft.

10,331

Lot Size

0.73 Acres

Year Built

2020

MLS Number

224029193

30 Days Snapshot Of 34145

$1.84M

-10%

(avg) sold price

-24%

homes sold

138

(avg) days on market

Snapshot

Area Map

Additional Details

Property Access

Road surface type: Paved

Appliances & Equipment

Gas Cooktop, Dishwasher, Disposal, Double Oven, Dryer, Grill - Gas, Ice Maker - Stand Alone, Microwave, Range, Refrigerator/Freezer, Refrigerator/Icemaker, Self Cleaning Oven, Tankless Water Heater, Washer, Wine Cooler, Other equipment: Generator

Building

Built in 2020, Building area units: Square Feet, Living area: 5,113, Construction materials: "Concrete Block", "Stucco", Other structures: "Tennis Court(s)", "Outdoor Kitchen", 3 total stories, DSL/Cable Available

Community

Clubhouse, Pool, Fitness Center, Golf, Putting Green, Restaurant, Tennis Court(s), Gated

Cooling

Ceiling Fan(s), Central Electric, Exhaust Fan

Doors

French Doors

Exterior Features

Balcony, Open Porch/Lanai, Built In Grill, Outdoor Kitchen

Fence

Fenced

Floors

Tile, Wood

Garage

11 spaces

Heating

Central Electric

Home Owner's Association

Association fee: $20,530

Interior Features

Furnished: Furnished, Bar, Built-In Cabinets, Cathedral Ceiling(s), Closet Cabinets, Custom Mirrors, Exclusions, Fireplace, Foyer, French Doors, Laundry Tub, Pantry, Smoke Detectors, Wired for Sound, Tray Ceiling(s), Vaulted Ceiling(s), Volume Ceiling, Walk-In Closet(s), Wet Bar, Window Coverings

Laundry

Washer/Dryer Hookup, Laundry in Residence, Laundry Tub

Lot

0.73 acres, 31,799 square feet, Irregular Lot, Oversize

Parking

11 covered spaces, 11 total parkings, Covered, Driveway Paved, Guest, Paved, Under Bldg Closed, Attached

Pets Policy

Pets allowed: Yes

Pool

Community, Below Ground, Custom Upgrades, Gas Heat

Property

None, Patio and porch features: Deck, Lake, Landscaped Area, Mangroves, Partial Gulf, Preserve, Water

Roof

Metal

Security Features

Security System, Smoke Detector(s), Gated Community

Spa

Community, Below Ground, Equipment Stays, Heated Gas

Taxes

Tax annual amount: $31,429, Tax year: 2023

Windows

Window Coverings

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