56 SE Marlin Ave, Key Largo FL 33037, KEY LARGO, FL, 33037
Active107 days on marketListed Apr 21, 2026MLS #A12011094
About this home
56 SE Marlin Ave, Key Largo FL 33037
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!
Facts & features
The home at a glance
2
Bedrooms
1
Bathrooms
828
Sqft
1971
Year built
$723
Per sqft
Inside
Outside & construction
Community & fees
Utilities & systems
The numbers
What it really costs
Built from this home's actual numbers — the most recent property-tax bill on record — not generic estimates.
$3,956 /mo · 10% down Conventional, 30-yr fixed at 6%
The assumptions
Above the FHA loan limit for our service areas, so Conventional is the default. VA buyers: switch below — $0 down.
These numbers assume a generic buyer — your credit, down payment and loan program change them. Get the real quote in minutes:
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Run your own numbers
FHA isn’t available at this price — the loan would exceed the $541,287 FHA limit for our service areas.
Estimated payment
$3,956/mo
Includes estimated PMI — it drops off once you reach 20% equity. Taxes reflect the most recent bill on record; insurance is a typical-Florida estimate. Your lender’s numbers will differ. CENTURY 21 Edge partners with Florida’s best lenders.
Value check
Is the price right?
The internet’s favorite home-value number comes from a single automated model that has never seen the street, the finishes, or the view — which is why it routinely misses by tens of thousands of dollars. The edgeAI estimate combines multiple independent data sources with our team’s on-the-ground expertise in this exact market.
$/sqft vs Key Largo actives
$723 vs $727
Days on market
107 vs 71 typical
Where $723/sqft sits among the 110 Key Largo actives
The edgeAI estimate is a starting point, not an appraisal or a broker price opinion. It is generated from public records, listing data and market modeling, and is subject to change once a licensed real estate professional personally inspects the property. Condition, floor, view and lot are not fully captured by any model — ask us for a full comparative market analysis.
Where it sits
Inside Largo Sound Park
Get to know Key Largo. See the full Key Largo guide →
Largo Sound Park — neighborhood snapshot
Population
550
Median age
49
Median income
$69,117
Median home value
$578,000
Avg household
3
Households w/ children
82%
For the school run
Monroe County School District
School assignments and ratings via edgeAI — always verify with the district.
The numbers that matter
The Key Largo market
$1.1M → $910K
Key Largo median sold, yr/yr
95.6%
Sale-to-list ratio (12 mo)
10 of 110
Key Largo actives have cut their price
Median sold price, Key Largo, trailing 36 months (3-month rolling) · live MLS data.
This home is listed 14% below the KEY LARGO 33037 median. See the full Key Largo market guide →
Paper trail
This home's history
Reality check
What actually sold near 56 SE Marlin Ave
Asking prices are opinions — closed sales are facts. The most comparable homes that actually changed hands nearby in the last twelve months.
Sold · Mar ’26$760,000
37 Bonefish Ave, Key Largo FL 33037 · same community
3 bd · 2 ba · 1,376 sqft · $552/sqft · 25 DOM
Sold · May ’26$749,000
29 Bass Ave, Key Largo FL 33037 · same community
3 bd · 2 ba · 1,390 sqft · $539/sqft · 70 DOM
Sold · Apr ’26$1,084,900
Nearby listing · same community
3 bd · 3.5 ba · 100 DOM
Closed-sale data from the MLS, last 12 months, selected for similarity in size and location. No two homes are identical — ask us for a full comparative analysis.
Your home team
The pros in your corner
Buying a home is two conversations — the home and the money. Here’s who handles each, side by side, already working together.
Your agent
David Ramirez
Real Estate Agent · CENTURY 21 Edge
Tours, negotiation, and every question about 56 SE Marlin Ave — start here.
Your lender
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Pre-approval, rates, and the real monthly number for 56 SE Marlin Ave — before you fall in love.
See it in person
Schedule a tour
Pick a day that works — this goes straight to David's phone and CRM.
Straight answers
56 SE Marlin Ave FAQs
What would the monthly payment be for 56 SE Marlin Ave, Key Largo FL 33037?+
With 10% down on a 30-year Conventional loan at 6%, the all-in payment lands around $3,956/mo — principal and interest, the actual property-tax bill and typical Florida insurance. The payment calculator on this page lets you switch loan type (FHA, Conventional, VA) and adjust the down payment, rate and term.
What are the property taxes on 56 SE Marlin Ave, Key Largo FL 33037?+
The most recent tax bill on record (2025) was $4,070. A new owner's bill can differ once the sale price resets the assessed value — we can walk you through what to expect.
How does the price compare to other homes in Key Largo?+
At $599,000, this home is listed about 32% below the Key Largo median of $877,000. The market section on this page shows how the area is trending.
Which schools are assigned to 56 SE Marlin Ave, Key Largo FL 33037?+
Coral Shores High School (high) — Monroe County School District. Always verify school assignments with the district before relying on them.
Keep looking
Similar homes nearby
Listing courtesy of American Caribbean Real Estate · Lorie Leal. MLS #A12011094.
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. Data is deemed reliable but is not guaranteed accurate by Miami Association of REALTORS®.
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