For sale

Price cut: $175K (7/8)

$500,000

329 63rd Ct, Marathon, FL 33050

2beds

1,302sqft

$3,022/mo

Get pre-qualified

Duplex

Built in 1968

-- sqft lot

$480,500 Zestimate^®

$384/sqft

$-- HOA

What's special

Two-story duplex

'United States Bankruptcy Auction. The Listing Price is for MLS Purposes only. Actual Price will be determined at Auction. The Auction will take place Live via Zoom on Thursday, September 10, 2026 at 11 AM ET. Bidder Registration Packages and Qualifying Deposits are due on or before Tuesday, September 8, 2026 at 5:00 PM ET. https://www.dropbox.com/scl/fo/6zvlde9vkafsi4gyurrge/AFbZzVpEx4s1umkeSKne1Us?rlkey=9ejdq1stq5w01ifjwsdhdrzyh&st=nzppom5j&dl=0 Excellent opportunity to own a two-story duplex in the heart of Marathon. Each unit offers 1 bedroom and 1 bathroom, situated on a generous 10,591 SF lot. Ideal for redevelopment, expansion, or construction of a larger duplex, subject to local approvals. Prime location near popular restaurants, Sombrero Beach, Marathon Sandbar, Florida Keys Marathon Airport, and Curry Hammock State Park. A versatile property with strong upside potential in the Middle Keys.

210 days

841

59

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 2
Bathrooms: 2
Full bathrooms: 2

Heating

Has Heating (Unspecified Type)

Cooling

Wall/Window Unit(s)

Appliances

Included: Refrigerator, Range, Oven

Features

Flooring: Other

Interior area

Total structure area: 1,302
Total interior livable area: 1,302 sqft

Property

Accessibility

Accessibility features: None

Features

Patio & porch: Patio

Lot

Size: 10,591 Square Feet

Details

Parcel number: 00336410000000
Zoning: RM - Residential Medium

Construction

Type & style

Home type: MultiFamily
Property subtype: Duplex

Materials

Condition

Fixer
New construction: No
Year built: 1968

Community & HOA

Community

Security: Other
Subdivision: Casa Blanca (50.5)

HOA

Has HOA: No
Services included: None

Location

Region: Marathon

Financial & listing details

Price per square foot: $384/sqft
Tax assessed value: $495,012
Annual tax amount: $5,510
Date on market: 1/22/2026
Listing terms: Cash,Conventional

Estimated market value

$480,500

$456,000 - $505,000

$2,882/mo

Price history

Date	Event	Price
7/8/2026	Price change	$500,000-25.9%$384/sqft
Source: Key West AOR #618269 Report a problem
3/12/2026	Price change	$675,000-3.6%$518/sqft
Source: FLKMLS #618269 Report a problem
1/22/2026	Listed for sale	$700,000+75%$538/sqft
Source: MIAMI #A11947574 Report a problem
4/26/2021	Sold	$400,000-5.9%$307/sqft
Source: FLKMLS #594271 Report a problem
1/21/2021	Listed for sale	$425,000+70%$326/sqft
Source: Key to the Keys Real Estate, Inc #594271 Report a problem
5/20/2004	Sold	$250,000$192/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$5,575 +1.2%	$495,012 +8.8%
2024	$5,510 +6.5%	$454,792 +10%
2023	$5,175 -5.3%	$413,447 +10%
2022	$5,464 +12.3%	$375,861 +24.9%
2021	$4,868 +7.7%	$300,912 +10%
2020	$4,521	$273,556 -0.6%
2019	$4,521 -0.2%	$275,094 +2.5%
2018	$4,530 +4.1%	$268,316 +1.6%
2017	$4,351 +2.1%	$264,087 +8.4%
2016	$4,260 +3.3%	$243,591 +14.6%
2015	$4,124	$212,564