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16200 Old State Road 4A, Sugarloaf Key, FL 33042

$3,900,000
Property Type: Residential Bedrooms: 3 Baths: 2 Square Footage: 1,964 Lot Size (sq. ft.): 896,896 Status: Closed
Current Price: $3,900,000 List Date: 1/05/2026 Last Modified: 3/01/2026

Overview

Description

Retreat to over 20 acres of private paradise, where unobstructed open-water views and breathtaking sunrise and sunset skies set the tone for everyday. Remotely tucked away off Old State Road in Sugarloaf Key, this rare beachfront estate delivers a level of privacy and true coastal beauty that is nearly impossible to replicate in the Florida Keys. Concrete construction completed in 2024, this turnkey, fully furnished home was thoughtfully designed to take full advantage of its surroundings. Large hurricane-impact windows and doors frame open-water views from nearly every room, while the bright, spacious interior is completed with stylish, high-end finishes throughout. The outdoor living experience resembles your very own private resort, with multiple spaces designed to take in the peace, quiet, and surrounding views—including the balcony, pool, downstairs covered lanai, and fire pit area. The large, newly completed (2025) saltwater pool features both a heater and chiller for ye ...

Listing Details MLS# 617926

Location, Tax & Legal

Street #
16200
Street Name
Old State
Street Suffix
Road
Key/Island
Sugarloaf Key
State/Province
FL
Zip Code
33042
County
Monroe
Subdivision
Sugarloaf Beach (17.0)
Area
06 - Bay Point to Sugarloaf
Unit #
4A
City
Sugarloaf
Mile Marker
17
Marathon Neighborhood
N/A
Side
Ocean
Flood Zone
VE, AE
Alternate Key #
1152978
Add'l Parcel #1
1152978
Parcel #
00119450-000000
Zoning
SS - Sparsely Settled Residential District
Deed Restrictions
Unknown
Legal
14 67 27 SUGAR LOAF KEY PT LOT 3 D2-292
Taxes
17411.86
Tax Year
2025
Pub Sewer HkUp
No

Contract Information

Listing Board
Key West Association
Species List
Yes

General Property Description

Realtor.COM Type
Residential - Single Family
Style
Single Family
Waterfront
Yes
Control Depth
2
Pool
Yes
Year Built
2024
Lot SqFt
896896
Lot Sqft Source
Property Data Card
Acres
20.59
Living Apx SqFt
1964
SqFt Source
Property Data Card
Total Bedrooms
3
Full Baths
2
Total Baths
2
Rentals Allowed
With Restrictions

Status Change Info

Sold Date
2026-02-27

Association Info

Mandatory Home Owners Asc
No
1st Right of Refusal
No
Association Fee $
0

Building Style

Above Flood
Unknown

More Information

Vehicle Storage

Car(s)
4+
Covered Parking
Yes
Open Parking
Yes
RV Parking Open
Yes
Off Street Parking
Yes
Trailer Storage
Yes

Pre-Wired

Other
Cat6
Surround Sound
Yes

Pool Info

Other
Chiller
Heated
Yes
Dimensions
12’ x 24’
In Ground
Yes
Salt Water
Yes
Concrete
Yes

Remarks & Misc

Remarks – Consumer
Retreat to over 20 acres of private paradise, where unobstructed open-water views and breathtaking sunrise and sunset skies set the tone for everyday. Remotely tucked away off Old State Road in Sugarloaf Key, this rare beachfront estate delivers a level of privacy and true coastal beauty that is nearly impossible to replicate in the Florida Keys. Concrete construction completed in 2024, this turnkey, fully furnished home was thoughtfully designed to take full advantage of its surroundings. Large hurricane-impact windows and doors frame open-water views from nearly every room, while the bright, spacious interior is completed with stylish, high-end finishes throughout. The outdoor living experience resembles your very own private resort, with multiple spaces designed to take in the peace, quiet, and surrounding views—including the balcony, pool, downstairs covered lanai, and fire pit area. The large, newly completed (2025) saltwater pool features both a heater and chiller for year-round comfort. Artificial turf around the pool creates a clean, low-maintenance outdoor aesthetic ideal for effortless enjoyment. Professionally designed landscaping is supported by a full irrigation system, while mosquito control systems provide coverage across the balcony, pool area, and lower-level seating spaces. Endless adventure begins right in your backyard, with direct access to your own private sandy beach. Launch straight into the Keys' best snorkeling, fishing, diving, kayaking, and exploring. The home is fully wired with CAT6 cabling, features a Sonos sound system throughout the interior and exterior, and includes a 500-gallon propane tank. Rare in scale, intentional in design, and defined by unmatched privacy and open-water views, this is a generational opportunity to own a truly one-of-a-kind beachfront retreat in the Florida Keys.

Fee Includes

None
Yes

Dockage

None
Yes

Tax Exemptions

None
Yes

Appliances

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

Pets

Pets Allowed
Yes

Cooling

Ceiling Fans(s)
Yes
Central Air
Yes

Waterfront

Oceanfront
Yes
Open Water
Yes

Waterview

Ocean View
Yes
Open Water View
Yes

Floor

Vinyl
Yes

Neighborhood Feature

Bike Paths
Yes

Interior Features

Drapes/Blinds Incl
Yes
Fireplace(s)
Yes
Quartz Countertops
Yes
Smoke Alarms
Yes

Property Condition

New Construction
Yes

Windows/Doors

Impact Rstnce Doors
Yes
Impact Rstnce Window
Yes

Construction

CBS
Yes

Land Size

10 or more Acres
Yes

Furnished

Furnished
Yes

Terms

Cash
Yes
Conventional
Yes

Utilities

Aerobic System
Yes
Buyer to Verify
Yes
FKAA
Yes
Propane
Yes

Porch/Balcony

Deck
Yes
Open Porch/Balcony
Yes
Patio
Yes

Title

Negotiable
Yes

Exterior Features

Lighting
Yes
Outdoor Shower
Yes
Rain Gutters
Yes
Sandy Beach
Yes
Storage
Yes

Roof

Metal Roof
Yes

GF-Interior Features

Tankless Hot Wtr Htr
Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Oceanfront; Open Water Waterview: Ocean View; Open Water View Dockage: None Property Condition: New Construction Vehicle Storage: Covered Parking; Off Street Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Furnished Cooling: Ceiling Fans(s); Central Air Utilities: Aerobic System; Buyer to Verify; FKAA; Propane Interior Features: Drapes/Blinds Incl; Fireplace(s); Quartz Countertops; Smoke Alarms Pre-Wired: Surround Sound Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Lighting; Outdoor Shower; Rain Gutters; Sandy Beach; Storage Pool Info: In Ground; Salt Water; Concrete Construction: CBS Floor: Vinyl Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Bike Paths Land Size: 10 or more Acres Terms: Cash; Conventional Title: Negotiable GF-Interior Features: Tankless Hot Wtr Htr

Documents

Listing Office: Expert Realty LLC (HQ)
Last Updated: March - 01 - 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.