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9300 Overseas Highway

Marathon, FL 33050

5 beds
9 baths
8,573 sqft
~5 acre lot
$2,449 per sqft
2007 build
– on site

This breathtaking five-acre oceanfront estate, with 244 feet of private ocean frontage, is the crown jewel of the Florida Keys. From the moment you pass through the gates, you'll be captivated by a world of elegance, privacy, and unparalleled amenities. At the heart of this premier estate lies a resort-style pool oasis. The custom-designed 5,600+/- square foot main residence showcases exquisite craftsmanship. A separate 2,999 sq.ft. guest house offers a private retreat. A marina provide direct access to the world-famous waters of the Keys. Enjoy the gourmet kitchen, guest suites, movie theater and even the potential for a private hangar. This estate isn't just a home; it's a lifestyle—your personal resort blending tropical serenity, architectural excellence, and unmatched prestige.

Listing courtesy of MLSM / Coldwell Banker Schmitt Real E

Last checked: Checking… • Last updated Apr 19, 2025 •

MLS# A11720611 —

This home is listed in more than one place. See it here, and here, and here.

The Building

Year Built:

2007
Year Built Details:

Resale
Construction Materials:

Block
Architectural Style:

Detached, TwoStory
Stories:

2
Levels:

Two
Roof:

Metal
Foundation Details:

Raised
Exterior Features:

Balcony, Deck, Fence, FruitTrees, Lighting, Porch, Shed
Door Features:

FrenchDoors
Window Features:

PlantationShutters, ImpactGlass, Skylights
Patio And Porch Features:

Balcony, Deck, Open, Porch
Security Features:

FireSprinklerSystem, SmokeDetectors
Other Equipment:

Generator
Direction Faces:

North
Building Area Total:

18482.0

Interior

Interior Features:

WetBar, BuiltInFeatures, BedroomOnMainLevel, FrenchDoorsAtriumDoors, FirstFloorEntry, Fireplace, HandicapAccess, HighCeilings, CustomMirrors, MainLevelPrimary, Pantry, Skylights, WalkInClosets, Workshop
Furnished:

Furnished
Flooring:

Carpet, Other, Tile, Wood
Fireplace:

true
Accessibility Features:

LowThresholdShower, AccessibleDoors, AccessibleHallways

Room Dimensions

Living Area:

8573.0
Living Area Source:

Builder

Financial & Terms

Lease Considered:

false

Location

Directions:

Overseas Highway South. Make a U-turn at 92nd Street Ocean. 400 feet turn right and enter private gate at 9300 Overseas Highway, Marathon.

The Property

View:

Ocean, Pool
Parcel Number:

00100800 000000
Property Type:

Residential
Property Subtype:

SingleFamilyResidence
Property Subtype Additional:

SingleFamilyResidence
Property Condition:

UpdatedRemodeled
Zoning Description:

SR
Lot Features:

FiveToTenAcres,SprinklersAutomatic
Lot Size Area:

216901.0
Lot Size SqFt:

216,901 Sqft
Lot Size Units:

SquareFeet
Frontage Length:

244
Other Structures:

Apartment, GuestHouse
Waterfront:

true
Waterfront Features:

OceanAccess, OceanFront

Listing Agent

Contact info:

Taxes

Tax Year:

2023
Tax Annual Amount:

$85,703
Tax Legal Description:

1 66 32 KEY VACCAS PT GOV LOT 4 G70-98/99 OR839-1346DC OR926-2275/79 OR995-1422/30 OR1159-1818/19 OR1221-685/86 OR1727-2212/20 OR1438-1207/0

Beds

Bedrooms Total:

5

Baths

Total Baths:

9
Full Baths:

6
Half Baths:

3

The Listing

Virtual Tour Unbranded:

Virtual Tour

Heating & Cooling

Heating:

Electric
Heating:

true
Cooling:

CentralAir, CeilingFans
Cooling:

true

Utilities

Utilities:

CableAvailable
Sewer:

PublicSewer
Water Source:

Public

Appliances

Appliances:

Dryer, Dishwasher, ElectricWaterHeater, Freezer, Disposal, GasRange, IceMaker, Microwave, Refrigerator, Washer

The Community

Subdivision Name:

Sea Crest Heights
Senior Community:

false
Community Features:

BoatFacilities
Spa:

True
Spa Features:

Heated, InGround
Pool Features:

Concrete, InGround, PoolEquipment, Pool
Pets Allowed:

NoPetRestrictions,Yes
Association Fee Includes:

MaintenanceGrounds

Parking

Parking Features:

Attached, Covered, ElectricVehicleChargingStations, Garage, RvAccessParking, GarageDoorOpener
Garage:

true
Attached Garage:

true
Garage Spaces:

8.0
Covered Spaces:

8.0

Monthly cost estimate

Asking price

$21,000,000

Expense	Monthly cost
Mortgage	$112,448
Taxes	$7,141
Insurance	$5,775
Utilities	$380 See report
Total	$125,744/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

Provided by WalkScore® Inc.

Air Pollution Index

Provided by ClearlyEnergy

Sale history

Date	Event	Source	Price	% Change
1/9/25 Jan 9, 2025	Listed / Active	MLSM	$21,000,000	500.0% (25.2% / YR)
7/5/24 Jul 5, 2024	Listed / Active	FGCMLS
3/4/24 Mar 4, 2024	Listed / Active	SWFLMLS

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This house located in Marathon, FL 33050 is currently for sale for $21,000,000. 9300 Overseas Highway is a 8,573 square foot house with 5 beds and 9 baths that has been on Estately for 125 days. This house is in the attendance area of Stanley Switlik Elementary School and Marathon Middle High School.

Listing Courtesy of: MLSM and Coldwell Banker Schmitt Real E.

Based on information from the MLS MIAMI 2025. All information provided is deemed reliable but is not guaranteed and should be independently verified. MLSM, Estately and their affiliates provide the MLS and all content therein “AS IS” and without any warranty, express or implied. The information included in this listing is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The information on each listing is furnished by the owner and deemed reliable to the best of his/her knowledge, but should be verified by the purchaser. MLSM and Estately assume no responsibility for typographical errors, misprints or misinformation. This property is offered without respect to any protected classes in accordance with the law.