OFF MARKET

Off Market Oct 2020 for $3.5M

$6,476,210

Est. refi paymentEst. refi $25,861/mo

•

5,497

sq ft

234 Corsair Rd, Duck Key, FL 33050

About this home

One of the most prestigious waterfront estate homes on Duck Key! A rare palatial home built on 1 acre w/ open water views & wraparound 300 foot concrete seawall connecting to two decorative Venetian-style bridges. The privacy wall, gated entrance & brick driveway accent this masterpiece in a lush tropical setting. The 5,497 sq ft home featuring 4 Bed 4.5 Bath is designed in a perfect mix of Modern, Old World and Coastal elegance with soft hues of cream, sand and blues. Automatic opening blinds and drapes, an elevator & dumb waiter are just a few of the luxury features. Almost every room in this comfortable home has spectacular open water views with all kinds of living space perfect for entertaining inside and out. The swimming pool terrace and upstairs balcony are unparalleled.

Single-familyProperty Type

1978Year Built

1.02 acresLot Size

$1,178Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Kristen Brenner/Margie Casey Kristen Brenner/Margie Casey Team • Florida Keys Real Estate Group

Bought with outside of mls mls • Outside Of MLS

Redfin checked: a minute ago

•Source:FLKMLS #588775

Redfin Estimate

$6,476,210

$3.0M since sold in October 2020$139K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 107.3% higher than the average sale price ($3.12M) of 6 comparable homes.

SOLD JUL 8, 2026
$2,100,000
A
4 beds3.5 baths2,779 sq ft
156 S Indies Dr, Duck Key, FL 33050
SOLD JUL 20, 2026
$1,550,000
B
4 beds4 baths3,298 sq ft
132 N Indies Dr, Duck Key, FL 33050
SOLD JUN 25, 2026
$4,495,000
C
5 beds5 baths4,284 sq ft
116 Avenue G, Marathon, FL 33050
SOLD JUN 1, 2026
$3,999,999
D
5 beds3.5 baths3,262 sq ft
2125 Avenue H, Marathon, FL 33050
SOLD JUN 5, 2026
$2,600,000
E
3 beds3 baths1,960 sq ft
344 E Seaview Dr, Duck Key, FL 33050
SOLD DEC 12, 2025
$4,000,000
F
4 beds4 baths2,519 sq ft
254 W Seaview Cir, Duck Key, FL 33050

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Earn from this home

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,776/mo

Redfin rental estimate

List your home for rent

Market trends in 33050, FL

Last updated August 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

93.9%

+0.4% MoM

Median sale price

$1.0M

$5K MoM

Avg. days on market

117d

17 days MoM

Recently sold homes

101

4 MoM

New listings for sale

$622,500
3 beds3 baths1,760 sq ft
410 101St St Ocean St Unit B, Marathon, FL 33050
$299,000
— beds— baths— sq ft
35 Sombrero Blvd Unit B22, Marathon, FL 33050
$275,000
— beds— baths— sq ft
35 Sombrero Blvd Unit B9, Marathon, FL 33050
3D WALKTHROUGH
$2,395,000
4 beds3 baths2,464 sq ft
211 S Anglers Dr S, Marathon, FL 33050
(305) 451-4078
$379,000
1 bed1.5 baths732 sq ft
2000 Coco Plum Dr #302, Marathon, FL 33050
$1,150,000
3 beds2 baths1,392 sq ft
11295 6Th Avenue Gulf, Marathon, FL 33050
3D WALKTHROUGH
$3,450,000
5 beds4 baths3,244 sq ft
69 Tingler Ln, Marathon, FL 33050
$409,999
1 bed1 bath664 sq ft
105 Avenue D Apt 113, Marathon, FL 33050
$1,539,000
3 beds2 baths1,623 sq ft
1791 Grouper Dr, Marathon, FL 33050
(305) 743-8328
OPEN SUN, 11AM TO 2PM
$1,399,000
4 beds2.5 baths3,647 sq ft
235 Tropical Ave, Grassy Key, FL 33050
See all

Provided by Redfin

Sale history for 234 Corsair Rd

Date

Event

Price

FLKMLS #588775

Oct 1, 2020

Sold

$3,500,000

$637/sq ft

Dec 20, 2019

Listed

$3,995,000

$727/sq ft

FLKMLS #569377

Jun 5, 2020

Listing Removed

—

Jan 1, 2016

Listed

$3,399,000

$618/sq ft

FLKMLS #566226

Jun 5, 2020

Listing Removed

—

Jan 1, 2015

Listed

$3,499,999

$637/sq ft

FLKMLS #564412

Jun 5, 2020

Listing Removed

—

Jun 1, 2014

Listed

$3,650,000

$664/sq ft

FLKMLS #562697

Jun 5, 2020

Listing Removed

—

Dec 1, 2013

Listed

$3,850,000

$700/sq ft

FLKMLS #561229

Jun 5, 2020

Listing Removed

—

May 23, 2013

Listed

$3,850,000

$700/sq ft

FLKMLS #406571

Nov 6, 2018

Listing Removed

—

Jul 15, 1997

Listed

$1,175,000

$214/sq ft

Public Records

Jul 13, 2017

Sold

$3,050,100

$555/sq ft

FLKMLS #573996

Jun 29, 2017

Sold

$3,050,000

$555/sq ft

Jan 30, 2017

Listed

$3,299,000

$600/sq ft

FLKMLS #573380

Jan 30, 2017

Listing Removed

—

Jan 1, 2017

Listed

$3,399,000

$618/sq ft

FLKMLS #412580

Oct 29, 1999

Sold

$1,050,000

$191/sq ft

Dec 3, 1998

Listed

$1,175,000

$214/sq ft

Public Records

Feb 1, 1973

Sold

$42,000

$8/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$41,990 (+4.1%)

2024

$40,339 (+4.2%)

2023

$38,714 (+16.5%)

2022

$33,231 (+11.1%)

2021

$29,914 (−17.5%)

$1,530,937 + $1,476,884

$3,007,821

2020

$36,278 (+3.2%)

$1,845,788 + $1,787,277

$3,633,065

2019

$35,156 (+2.5%)

$1,845,788 + $1,787,277

$3,633,065

2018

$34,294 (+81.1%)

$1,836,670 + $1,701,634

$3,538,304

2017

$18,942 (−0.8%)

2016

$19,086 (−2.7%)

2015

$19,606 (−3.4%)

2014

$20,300

Tax history for 234 Corsair Rd

Year

Property tax

Land + Additions

Assessment*

2025

$41,990 (+4.1%)

2024

$40,339 (+4.2%)

2023

$38,714 (+16.5%)

2022

$33,231 (+11.1%)

2021

$29,914 (−17.5%)

$1,530,937 + $1,476,884

$3,007,821

2020

$36,278 (+3.2%)

$1,845,788 + $1,787,277

$3,633,065

2019

$35,156 (+2.5%)

$1,845,788 + $1,787,277

$3,633,065

2018

$34,294 (+81.1%)

$1,836,670 + $1,701,634

$3,538,304

2017

$18,942 (−0.8%)

2016

$19,086 (−2.7%)

2015

$19,606 (−3.4%)

2014

$20,300

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

Baths

4.5

Stories

Lot width

—

Lot depth

—

Lot size

1.02 Acres

Year renovated

2012

Sq. Ft.

5,497

Year built

1978

Style

Single Family Residential

County

Monroe County

APN

1665 34 00384130000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 10, 2026.

Property details

Parking

Parking / Garage Information
Vehicle Storage: Garage
Vehicle Storage: Car(s): 2

Interior

Interior Features
Interior Features: Built-in Cabinets, Quartz Countertops, Window Treatments, Whirlpool Bath Tub, Walk-in Closet, Tray Ceilings, Split Bedroom, Smoke Alarms, Security System, Drapes/Blinds Incl, Foyer, Elevator, Cathedral Ceilings
Flooring: Carpet, Wood Floor, Tile Floor, Marble, Combo
Windows/Doors: Casement, Impact Rstnce Doors, Single Hung Windows, Other Windows/Doors, Impact Rstnce Window, Glass Doors
Cooling/Heating: Ceiling Fans, Central A/C
Appliances: Dishwasher, Range, Washer, Refrigerator, Oven, Gas Appliances, Dryer
Furnished: Unfurnished

Bathroom Information
# of Full Baths: 4
# of Half Baths: 1

Specialty Room Information
Specialty Rooms: Laundry Room, Utility Room

Exterior

Boat Slip/Dock Information
Dockage: Dock Length: 390
Dockage: Seawall: Concrete
Dockage: Boat Lift, Boat Ramp

Exterior Features
Exterior Features: Built-in Grill, Privacy Wall/Fence, Hot Tub
Has Pool
Pool Information: Concrete, In Ground, Decked
Porch/Balcony: Deck, Roof Top Deck, Widow's Walk, Patio, Open Porch/Balcony

Security
Central Station Sys, Patrolled Area, On Premises System, Electric Gate

Property Features
Accessibility Features: Elevator
On Waterfront
Waterfront Type: Canal Front, Gulf Front
Waterview: Bay/Gulf View, Open Water View, Canal View

Property Information
Property Condition: Updated/Remodeled
Deed Restrictions: Yes
Pets: Pets Allowed
Rentals Allowed: With Restrictions
Min Rental Days: 28

Lot Information
Acres: 1.02
Zoning: IS - Improved Subivision District
Land Size: 1 Less Than 2 Acres
Control Depth: 5
Flood Zone: AE, VE

Building Information
Year Built: 1,978
Sq. Ft. Source: Property Data Card
Building Style: Above Flood: Yes
Construction: CBS
Roof: Concrete Roof

Subdivision/Neighborhood
Subdivision: Plantation Island (61.0)
Marathon Neighborhood: N/A

Financial

Tax Information
Taxes: $35,156.06
Tax Year: 2,019
Tax Exemptions: Homestead

Financial Information
Terms: Cash, Conventional

Utilities

Utility Information
Utilities: Buyer to Verify, Propane, FKAA, Community Sewer Plant, Cable Available
Pre-Wired: Cable
Has Public Sewer Hook-up

Location

Homeowners Association Information
Voluntary Home Owners Association
Association Info: 1st Right of Refusal: No
Association Info: Association Fee $: 200.00
Association Info: Association/Maintenance Fee Per: Yearly
Fee Includes: None

Location Information
Side: Bay/Gulf
Mile Marker: 61.00
Directions: Overseas Highway to Duck Key (MM61). Drive past Hawks Cay Resort over two historic bridges. The property is just past the second bridge on the right.

Neighborhood Features
Clubhouse, Fire Hydrant, Tennis Courts, Spa, Community Pool, Community Dockage

Public facts

Beds: 4
Baths: 4.5
Sq. Ft.: 5,497
Stories: 3.0
Lot Size: 1.02 acres
Style: Single Family Residential
Year Built: 1978
Year Renovated: 2012
County: Monroe County
APN: 1665 34 00384130000000

Home facts updated by county records on Jul 10, 2026

Around this home

Schools

Stanley Switlik Elementary School

Public PreK-5 • Assigned • 11.6mi

5/10

Marathon School

Public 6-12 • Assigned • 10.9mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

Heat Factor

We're working on getting current and accurate heat risk information for this home.

10/10 Wind Factor

99% chance of strong winds in next 30 years

1/10 Air Factor

0 unhealthy days expected this year, 0 days in 30 years

Provided by First Street

Historical weather

Duck Key, FL • 33050

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.8 hours in June and 7.2 hours in December, placing it above the U.S. average for solar exposure.

9.8 hrs

7.2 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$6.15M – $7.45M

Sell confidently with a local market expert in Duck Key. 3 minutes to get started.

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Home values near 234 Corsair Rd

Data from public records.

Address	Redfin Estimate
228 Corsair Road, Duck Key, FL 3 Beds \| 3 Baths \| 2502 Sq. Ft.	$2,730,891
202 Schooner Lane, Duck Key, FL 2 Beds \| 1 Baths \| 840 Sq. Ft.	$1,080,677

Address	Redfin Estimate
230 Corsair Road, Duck Key, FL 4 Beds \| 4 Baths \| 3898 Sq. Ft.	$2,531,307
401 Harbour Drive, Duck Key, FL 3 Beds \| 2.5 Baths \| 2562 Sq. Ft.	$4,180,055

Address	Redfin Estimate
229 Corsair Road, Duck Key, FL 3 Beds \| 2.5 Baths \| 2087 Sq. Ft.	$1,565,259
403 Harbour Drive, Duck Key, FL 3 Beds \| 3 Baths \| 3025 Sq. Ft.	$2,953,883

Property information provided by FLKMLS when last listed in 2019. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 33050, FL

Sale history for 234 Corsair Rd

Tax history for 234 Corsair Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 33050

Home values near 234 Corsair Rd

More real estate resources