56 SE Marlin Ave

Key Largo, FL 33037

$574,000

$693/ft²

2Beds

1Baths

828Sq ft

1971Year built

Single-family homeType

About this home

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!

Property details

Listing

MLS #: A12011094
Status: For sale
Listed on: Apr 21, 2026
Days on market: 111 days
Listing data updated: Jul 21, 2026

Interior

Beds: 2
Baths: 1
Living area: 828 ft²
Price per ft²: $693/ft²

Building & community

Type: Single-family home
Year built: 1971
County: Monroe

Lot & exterior

Lot size: 5,125 ft²

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest): $2,902
Property taxes (est.): $526
Home insurance (est.): $433
Flood insurance (est.): —

Estimated total$3,861*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?