Rare oversized lot in the heart of Duck Key: 12,099 SF, a lot and a half, well above the typical 7,500 to 7,800 SF lots found throughout the island. The property offers 128' of frontage with a 100' lot depth, exceptional dimensions for a custom island retreat. The lot sits in a favorable flood zone, has no wetlands, and is free of invasive plant species, a clean canvas ready for design. Public sewer is available; no plans or ROGO permit convey with the sale, so buyer to verify with the county. Three houses down, new construction on a 7,500 SF lot recently sold for $2,000,000, underscoring the upside on a lot nearly double the size. Owner will consider owner financing with a minimum 50% down payment. Duck Key delivers the authentic Keys lifestyle: crystal clear waters, easy access to deep drops just outside the island for world-class deep sea fishing, and nearby sandbars like Grassy Key for weekend gatherings. The island is home to a Michelin-rated chef's restaurant, and an optional HOA offers a pool, tennis courts, and additional amenities. Duck Key also has a marina where owners can arrange paid boat storage ahead of storms or hurricanes. Unlike much of the Keys, Duck Key enforces monthly rather than weekly rental minimums, preserving a quieter, more residential feel with less transient tourism, the calm, tropical, island-style living Duck Key is known for. 2025 property taxes were $1,388, which does not reflect any exemptions.
Details
MLS #
621297
Listing Type
For Sale
Sub-Type
Resale
Status
Active
Days On Site
9
Listing Provided By
Trustpoint Realty, LLC | Joseph Suarez
Features
Zoning
IS - Improved Subivision Distric
Acreage
0.28
Property View
No Waterview
Taxes
Property
1388
Area Information
State
FL
County
Monroe
City
Duck
Zip Code
33050
Area
20 Duck Key | Coral Key | Conch Key
Community Name
Duck Key (61.0)
Listing VS Median (in Duck Key (61.0))
Price: $399,000
low | high
Med: $19,500
100% of Average
On site: 9
low | high
Med: 377
2.387267904509% of Average
Sourced by Back At You
Market Activity 33050
Date
Sales
Avg $ Per SqFt
Min Sale Price
Max Sale Price
Med Sale Price
Date: Aug 2026
Sales: 4
Avg $ Per SqFt: $612.01
Min Sale Price: $235,000
Max Sale Price: $1,250,000
Med Sale Price: $625,000
Date: Jul 2026
Sales: 8
Avg $ Per SqFt: $828.65
Min Sale Price: $160,000
Max Sale Price: $2,995,000
Med Sale Price: $874,500
Date: Jun 2026
Sales: 9
Avg $ Per SqFt: $843.24
Min Sale Price: $410,000
Max Sale Price: $2,560,000
Med Sale Price: $950,000
Date: May 2026
Sales: 17
Avg $ Per SqFt: $816.13
Min Sale Price: $170,000
Max Sale Price: $3,475,000
Med Sale Price: $570,000
Date: Apr 2026
Sales: 22
Avg $ Per SqFt: $724.36
Min Sale Price: $160,000
Max Sale Price: $3,999,999
Med Sale Price: $878,500
Date: Mar 2026
Sales: 22
Avg $ Per SqFt: $639.94
Min Sale Price: $8,500
Max Sale Price: $3,250,000
Med Sale Price: $722,500
Date: Feb 2026
Sales: 27
Avg $ Per SqFt: $671.14
Min Sale Price: $9,500
Max Sale Price: $4,495,000
Med Sale Price: $580,000
Date: Jan 2026
Sales: 14
Avg $ Per SqFt: $569.9
Min Sale Price: $255,000
Max Sale Price: $3,250,000
Med Sale Price: $870,000
Date: Dec 2025
Sales: 19
Avg $ Per SqFt: $700.61
Min Sale Price: $1,000
Max Sale Price: $4,600,000
Med Sale Price: $900,000
Date: Nov 2025
Sales: 18
Avg $ Per SqFt: $664.77
Min Sale Price: $120,000
Max Sale Price: $4,950,000
Med Sale Price: $620,000
Date: Oct 2025
Sales: 25
Avg $ Per SqFt: $768.34
Min Sale Price: $130,000
Max Sale Price: $4,500,000
Med Sale Price: $799,500
Date: Sep 2025
Sales: 10
Avg $ Per SqFt: $813.67
Min Sale Price: $10,600
Max Sale Price: $3,000,000
Med Sale Price: $1,012,500
Sourced by Back At You
Aug 2026
Sales:
4
Avg $ Per SqFt:
$612.01
Min Sale Price:
$235,000
Max Sale Price:
$1,250,000
Med Sale Price:
$625,000
Jul 2026
Sales:
8
Avg $ Per SqFt:
$828.65
Min Sale Price:
$160,000
Max Sale Price:
$2,995,000
Med Sale Price:
$874,500
Jun 2026
Sales:
9
Avg $ Per SqFt:
$843.24
Min Sale Price:
$410,000
Max Sale Price:
$2,560,000
Med Sale Price:
$950,000
May 2026
Sales:
17
Avg $ Per SqFt:
$816.13
Min Sale Price:
$170,000
Max Sale Price:
$3,475,000
Med Sale Price:
$570,000
Apr 2026
Sales:
22
Avg $ Per SqFt:
$724.36
Min Sale Price:
$160,000
Max Sale Price:
$3,999,999
Med Sale Price:
$878,500
Mar 2026
Sales:
22
Avg $ Per SqFt:
$639.94
Min Sale Price:
$8,500
Max Sale Price:
$3,250,000
Med Sale Price:
$722,500
Feb 2026
Sales:
27
Avg $ Per SqFt:
$671.14
Min Sale Price:
$9,500
Max Sale Price:
$4,495,000
Med Sale Price:
$580,000
Jan 2026
Sales:
14
Avg $ Per SqFt:
$569.9
Min Sale Price:
$255,000
Max Sale Price:
$3,250,000
Med Sale Price:
$870,000
Dec 2025
Sales:
19
Avg $ Per SqFt:
$700.61
Min Sale Price:
$1,000
Max Sale Price:
$4,600,000
Med Sale Price:
$900,000
Nov 2025
Sales:
18
Avg $ Per SqFt:
$664.77
Min Sale Price:
$120,000
Max Sale Price:
$4,950,000
Med Sale Price:
$620,000
Oct 2025
Sales:
25
Avg $ Per SqFt:
$768.34
Min Sale Price:
$130,000
Max Sale Price:
$4,500,000
Med Sale Price:
$799,500
Sep 2025
Sales:
10
Avg $ Per SqFt:
$813.67
Min Sale Price:
$10,600
Max Sale Price:
$3,000,000
Med Sale Price:
$1,012,500
MLS Number: 621297
Joseph Suarez – (305) 300-2804 – info@trustpointrealty.com
MLS Internet Data Exchange (IDX) information 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, and that the data is deemed reliable but is not guaranteed accurate by the Florida Keys Board of Realtors.
The data relating to real estate for sale on this web site come s in part from the Internet Data Exchange program of the Marathon and Lower Keys Association of REALTORS®, Inc. MLS. Real Estate listings held by brokerage firms other than Coldwell Banker Schmitt are marked with the MLS logo and detailed information about them includes the name of the listing broker’s office.
MLS Number: 621297
Joseph Suarez – (305) 300-2804 – info@trustpointrealty.com