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121 Calle Ensueno, Marathon, FL 33050

New Listing
$2,800,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 3,079 Lot Size (sq. ft.): 27,973 Status: Active
Current Price: $2,800,000 List Date: 8/07/2026 Last Modified: 8/07/2026

Overview

Description

Welcome to prestigious Sombrero Isle, one of the Middle Keys' most exclusive waterfront communities. This exceptional 4-bedroom, 4-bath residence blends timeless elegance with the relaxed luxury of the Florida Keys lifestyle. Step inside to a grand living room highlighted by soaring volume ceilings, gleaming marble floors, a gracefully curved staircase, and a wraparound mezzanine that leads to the spacious bedrooms and private guest quarters. Designed for both everyday living and entertaining, the home offers an open, inviting atmosphere with impressive Mediterranean architectural details throughout. The well-appointed kitchen features granite countertops, stainless steel appliances, and abundant cabinetry, providing both style and functionality. Outdoors, enjoy your own tropical retreat with a heated freeform swimming pool and over 40 feet of dockage with approximately 5 feet of controlling depth, offering convenient access for a variety of boats. Nestled within the exclus ...

Listing Details MLS# 620899

Location, Tax & Legal

Street #
121
Street Name
Calle Ensueno
Key/Island
Marathon
State/Province
FL
Zip Code
33050
County
Monroe
Subdivision
Sombrero Isle (49.5)
Area
14 - Sombrero Area
City
MARATHON
Mile Marker
49.5
Marathon Neighborhood
Sombrero
Senior Community YN
No
Side
Ocean
Flood Zone
AE
Alternate Key #
1438961
Handicap Access
No
Parcel #
00357041-002300
Zoning
RM - Residential Medium
Deed Restrictions
No
Legal
LT 23 SOMBRERO ISLE BOOT KEY PB6-85
Taxes
19466.18
Tax Year
2025
Pub Sewer HkUp
Yes

Contract Information

Listing Board
Marathon/Lower Keys
As is Rght to Inspct
Yes
Potential Short Sale
No
Bank Owned
No
Species List
Yes

General Property Description

Realtor.COM Type
Residential - Single Family
Style
Single Family
Waterfront
Yes
Control Depth
5
Pool
Yes
Year Built
1998
Lot SqFt
27973
Lot Sqft Source
Tax Records
Acres
0.64
Living Apx SqFt
3079
SqFt Source
Tax Records
Total Bedrooms
4
Full Baths
3
Half Baths
Yes
Total Baths
4
Rentals Allowed
Yes
Min Rental Days
7
Total Units
0

Association Info

Mandatory Home Owners Asc
No
Voluntary Home Owners Asc
Yes
1st Right of Refusal
No
Maintenance Fee $
500
Assoc/Mnt Fee Per
Yearly
Association Fee $
0

License Info

Transient Rntl Licns
Yes

More Information

Dockage

Dock Length
40
Dock
Wood

Building Style

Above Flood
Yes
Stories
2 Stories
Ground Level
Yes

Vehicle Storage

Car(s)
2
Garage
Yes
Guest Parking
Yes
Open Parking
Yes
RV Parking Open
Yes
Attached
Yes
Off Street Parking
Yes
Trailer Storage
Yes

Financial Status

Bank Owned
No
Potential Short Sale
No

Remarks & Misc

Remarks – Consumer
Welcome to prestigious Sombrero Isle, one of the Middle Keys' most exclusive waterfront communities. This exceptional 4-bedroom, 4-bath residence blends timeless elegance with the relaxed luxury of the Florida Keys lifestyle. Step inside to a grand living room highlighted by soaring volume ceilings, gleaming marble floors, a gracefully curved staircase, and a wraparound mezzanine that leads to the spacious bedrooms and private guest quarters. Designed for both everyday living and entertaining, the home offers an open, inviting atmosphere with impressive Mediterranean architectural details throughout. The well-appointed kitchen features granite countertops, stainless steel appliances, and abundant cabinetry, providing both style and functionality. Outdoors, enjoy your own tropical retreat with a heated freeform swimming pool and over 40 feet of dockage with approximately 5 feet of controlling depth, offering convenient access for a variety of boats. Nestled within the exclusive island community of Sombrero Isle, this intimate enclave consists of only 32 waterfront homes, each situated on approximately one-half acre. Boaters will appreciate the quick access via Sister's Creek to the Atlantic Ocean and some of the finest fishing and diving waters in the United States. Residents also enjoy close proximity to the renowned Sombrero Beach, scenic parks, shopping, fine dining, and vibrant local restaurants and waterfront bars. Marathon International Airport is just 10 minutes away, making travel to and from paradise effortless. Experience the perfect combination of luxury, privacy, and premier boating access in one of Marathon's most coveted waterfront neighborhoods.

Fee Includes

Common Area Mnt
Yes

Tax Exemptions

None
Yes

Appliances

Dishwasher
Yes
Disposal
Yes
Dryer
Yes
Microwave
Yes
Oven
Yes
Range
Yes
Refrigerator
Yes
Stainless Steel Appliance(s)
Yes
Washer
Yes
Wine Cooler
Yes

Pets

Pets Allowed
Yes

Cooling

Ceiling Fans(s)
Yes
Central Air
Yes

Waterfront

Canal Front
Yes

Waterview

Canal View
Yes

Floor

Tile
Yes

Neighborhood Feature

Beach
Yes

Interior Features

Cathedral Ceilings
Yes
Granite Counter Top
Yes
Smoke Alarms
Yes
Split Bedroom
Yes
Storage
Yes
Walk-in Closet(s)
Yes

Specialty Rooms

Laundry Room
Yes

Windows/Doors

Aluminum Windows
Yes

Construction

CBS
Yes

Land Size

1/2 - Less Than 1 AC
Yes

Furnished

Furnished
Yes

Terms

Conventional
Yes
Seller Finance Psble
Yes

Utilities

FKAA
Yes
Municipal Sewer
Yes

Porch/Balcony

Deck
Yes
Open Porch/Balcony
Yes
Patio
Yes

Title

Title Ins - Buyer
Yes

Exterior Features

Fencing
Yes
Storage
Yes

Pool Info

In Ground
Yes
Concrete
Yes
Decked
Yes

Roof

Tile Roof
Yes

Shutters

Panel
Yes
Roll Down Electric
Yes

Property Features

Fee Includes: Common Area Mnt Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Building Style: Ground Level Vehicle Storage: Garage; Attached; Guest Parking; Off Street Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Furnished Cooling: Ceiling Fans(s); Central Air Utilities: FKAA; Municipal Sewer Interior Features: Cathedral Ceilings; Granite Counter Top; Smoke Alarms; Split Bedroom; Storage; Walk-in Closet(s) Specialty Rooms: Laundry Room Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler Exterior Features: Fencing; Storage Pool Info: In Ground; Concrete; Decked Construction: CBS Shutters: Panel; Roll Down Electric Floor: Tile Roof: Tile Roof Pets: Pets Allowed Neighborhood Feature: Beach Land Size: 1/2 - Less Than 1 AC Terms: Conventional; Seller Finance Psble Title: Title Ins - Buyer
Listing Office: Coldwell Banker Schmitt Real Estate Co.
Last Updated: August - 07 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.