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3 Beds
2 Baths
1,964 sqft

$3,900,000

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

Price per sqft$1,985.74
Built in2024
Property size1,964 sqft
Property typeResidential

Overview

Sold

Closed

Listed Jan 5, 2026

Updated 2 weeks ago

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.

Additional information

MLS® ID
617926

Interior Features

Bedrooms
3
Bathrooms
2
Cooling
Yes
Basement
No

Exterior Features

Lot Size
20.59 Acres

Other Property Details

Taxes
$17,412
Tax Frequency
Annually
View
Yes
Pets Allowed
Yes
New Construction
Yes
Pool
Yes
Waterfront
Yes
MLS provider logo

Listed by Madeleine Young with Expert Realty LLC (HQ)
Listing Contact: 305-587-7330 

The IDX display contains information sourced from the Florida Keys Board of REALTORS® as of 9/1/2026. This data is intended solely for personal, non-commercial use and is not to be utilized for any other purposes except to identify potential properties for purchase. Although the MLS data displayed is typically considered reliable, it is not guaranteed to be accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and are advised to conduct their own investigations or seek professional assistance. Other sources besides the Listing Agent may have contributed to the MLS data presented. Unless expressly specified in writing, the Broker/Agent has not confirmed any information obtained from external sources. The Broker/Agent may or may not have acted as the Listing and/or Selling Agent and cannot guarantee the accuracy of property locations displayed on any map. Any compensation offers are solely made to participants of the MLS where the listing is registered.

©2026 Florida Keys Board of REALTORS® all rights reserved.

Data last updated on 9/1/2026 at 1:43 AM UTC

 

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