Active Under ContractMLS® A12011094

$574,000

56 SE Marlin Avenue, Key Largo, FL 33037

Beds: 2
Baths: 1
Sqft: 828

Est. payment$3,605/mo

Home type: Single Family Residence
Year built: 1971
Lot size: 5,227 sqft
Price / sqft: $693
HOA: $0/mo
Community: LARGO SOUND PARK

Property description

Only 6 homes in from the Beach! Located in Key Largo's highly desirable Largo Sound Park neighborhood, this concrete conch home offers exclusive access to a private community park featuring a sandy beach, boat ramp, and pavilion with restrooms- all for you to enjoy the Keys lifestyle! Full of character and Old Florida charm this 2 bedroom home features a bright and open floor plan with terrazzo floors and a new roof in 2023. Off of the kitchen, there is a huge screened patio under roof that connects to a workshop - great for additional living space with excellent potential! The fully fenced yard provides ample room for multiple vehicles and a boat trailer. The spacious backyard offers endless possibilities, with plenty of room to add a pool, create an outdoor entertaining area, or simply enjoy the wide open space. This is a great opportunity to own in Largo Sound Park right by the Homeowner's park and make this house your very own! This rare location is something truly special! Live the Keys lifestyle!

Listing activity

Days on market: 142
Listed: Apr 21, 2026
MLS listing updated: Nov 1, 2026
Feed last checked: 7 minutes ago

Listed by Lorie Rose Leal · American Caribbean Real Estate

Map

Map location is based on MLS-supplied coordinates. Verify the location before relying on it.

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 2
Bathrooms: 1
Bathrooms (decimal): 1
Full bathrooms: 1
Half bathrooms: 0

Rooms & features

Rooms: 1
Interior features: Storage
Flooring: Terrazzo
Appliances: Electric Range, Refrigerator
Laundry: Washer Hookup, Dryer Hookup

Heating & cooling

Heating: Central
Cooling: Central Air

Property

Parking

Garage spaces: 0
Carport spaces: 0
Covered spaces: 0
Parking features: Boat, Driveway, RV Access/Parking
Attached garage: No

Exterior

Stories: 1
Building area: 1,191 sqft
Entry level: 1
Patio & porch: Porch - Screened, Porch
Fencing: Fenced
Pool: No
Waterfront: No Fixed Bridge
Waterfront property: No

Lot

Lot size: 5,227 sqft
Lot size (acres): 0.12 acres
Lot dimensions: 50 x 102.5
Lot features: Room for Pool
Zoning: IS

Construction

Type & style

Home type: Single Family Residence
Architectural style: Ranch
Year built: 1971
New construction: No

Materials

Construction: CBS
Roof: Metal
Property condition: Resale
Levels: One
Faces: Southeast

Utilities & green energy

Utilities

Sewer: Public Sewer
Water: Public

Community & HOA

Community

Subdivision: LARGO SOUND PARK
MLS area: 5940 - Other Florida County
MLS subarea: Other
55+ community: Yes

Association

Has association: Yes
Estimated monthly dues: $0
Amenities: Beach Access, Boating, Picnic Area, Other

Lease details

Not reported by the listing source.

Location

Area details

City: Key Largo
County: Monroe
ZIP code: 33037

Manufactured home details

Not reported by the listing source.

Financial & listing details

Listing

MLS number: A12011094
Possession: Negotiable
Original list price: $599,000
Parcel number: 00473320000000
Annual property tax: $4,070
Tax year: 2025
Tax legal description: BK 14 LT 16 LARGO SOUND PARK PB3-111 KEY LARGO OR266-595 OR402-197 OR758-294 OR826-2124 OR846-20 OR868-315 OR1030-1796 OR1410-1065 OR1410-10

Additional MLS details

Reported by the listing source

Association Amenities: Beach Access, Boating, Picnic Area, Other
Association: Yes
Bathrooms Total Decimal: 1
Bathrooms Total Integer: 1
Building Area Total: 1191
Construction Materials: CBS
County Or Parish: Monroe
Days On Market: 142
Direction Faces: Southeast
Elementary School: Key Largo
High School: Coral Shores
Laundry Features: Washer Hookup, Dryer Hookup
List Price: 574000
Listing Contract Date: 2026-04-21
Living Area: 828
Lot Size Acres: 0.12
Lot Size Area: 5125
Lot Size Dimensions: 50 x 102.5
MLSArea Major: 5940 - Other Florida County
MLSArea Minor: Other
Middle Or Junior School: Key Largo
Mls Status: Active Under Contract
On Market Date: 2026-04-21
Patio And Porch Features: Porch - Screened, Porch
Photos Count: 37
Postal Code: 33037
Price Change Timestamp: 2026-07-21T22:35:42Z
Property Sub Type: Single Family Residence
Property Type: Residential
Rooms Total: 1
Senior Community: Yes
Standard Status: Active Under Contract
State Or Province: FL
Status Change Timestamp: 2026-09-30T12:48:12Z
Stories Total: 1
Subdivision Name: LARGO SOUND PARK
Water Source: Public
Waterfront Features: No Fixed Bridge
Tax Annual Amount: 4070
Bathrooms Full: 1
Pool Private: No
Bedrooms Total: 2
Bathrooms Half: 0
General Property Information: Senior Community: Yes

Market value

Automated estimate—No licensed valuation source connected

Estimated sales range—Ask Karim for a local market analysis

Estimated rent—No licensed rental valuation source connected

Price history

Date	Event	Price
Apr 21, 2026	ListedMIAMI REALTORS® MLS	$599,000$723/sqft
Jul 21, 2026	Price reducedMIAMI REALTORS® MLS	$574,000$693/sqft

Public tax history

Year	Property taxes	Assessment
2025	$4,070	—

Payment calculator

Estimated monthly payment$3,605/moIllustrative estimate, not a loan offer.

Loan typeDown payment (%)Interest rate assumption (%)Loan termInsurance / month

Principal & interest: $2,978
Property taxes: $339
Insurance: $287
Association dues: $0

Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.

Neighborhood

Area

LARGO SOUND PARK

Key Largo · Monroe County · 33037

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Key LargoElementary

—

Key LargoMiddle

—

Coral ShoresHigh

—

School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

Nearby homes

12 homes