524 Warren Ln
Key Biscayne, FL 33149
5 Beds
4 Baths
2,700 sqft
5 Beds
4 Baths
2,700 sqft
Local Information
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Description
Located in one of the most exclusive residential pockets of Key Biscayne, surrounded by multi-million-dollar estates, this beautifully designed 5-bedroom, 4 full bathroom home offers the perfect balance of privacy, functionality, and tropical lifestyle. The layout is thoughtfully distributed with a private primary suite on one side, a separate nanny/guest suite with its own bathroom, and a dedicated wing for the children’s bedrooms—ideal for both family living and entertaining. Just steps from top-rated schools and only 10 minutes from the beach, the property features a stunning outdoor space with a resort-style pool and a charming tiki bar, creating the ultimate South Florida oasis. A rare opportunity to own in a highly sought-after neighborhood where surrounding homes reach $10M+.
Home Highlights
Parking
Garage
Outdoor
Patio, Pool
View
Garden
HOA
None
Price/Sqft
$1,381
Listed
70 days ago
Home Details for 524 Warren Ln
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Beds & Baths Number of Bedrooms: 5Number of Bathrooms: 4Number of Bathrooms (full): 4 |
Dimensions and Layout Living Area: 2700 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Dryer, Electric Water Heater, Ice Maker, Microwave, Electric Range, Oven, WasherDishwasherDryerLaundry: In Garage,Common AreaMicrowaveWasher |
Heating & Cooling Heating: CentralHas CoolingAir Conditioning: Ceiling Fan(s),Central AirHas HeatingHeating Fuel: Central |
Gas & Electric Electric: Circuit BreakersGas: Natural Gas |
Windows, Doors, Floors & Walls Window: Hurricane ShuttersFlooring: Concrete |
Levels, Entrance, & Accessibility Floors: Concrete |
View Has a ViewView: Garden |
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Exterior Home Features Roof: Barrel RoofPatio / Porch: PatioFencing: FencedExterior: Barbecue, LightingFoundation: SlabHas a Private Pool |
Parking & Garage Number of Garage Spaces: 1Number of Covered Spaces: 1Has a GarageHas Open ParkingParking Spaces: 1Parking: Circular Driveway,Golf Cart Parking |
Pool Pool: In Ground, Concrete, Gunite, Pool OnlyPool |
Frontage Not on Waterfront |
Water & Sewer Sewer: Public Sewer |
Farm & Range Not Allowed to Raise Horses |
Surface & Elevation Elevation Units: Feet |
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Days on Market: 70 |
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Year Built Year Built: 1950 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: Other |
Building Building Name: Tropical Isle Homes Sub 1Construction Materials: Concrete Block Construction, Concrete |
Property Information Parcel Number: 2442320040220 |
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Price List Price: $3,730,000Price Per Sqft: $1,381 |
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MLS Status: Active |
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Direction & Address City: Key BiscayneCommunity: Tropical Isle Homes Sub 1 |
School Information Elementary School: KeybiscayneJr High / Middle School: Ponce De LeonHigh School: Coral Gables |
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Listing Agent Listing ID: A11999112 |
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Building Area Building Area: 2740 Square Feet |
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Community Features: Picnic Area |
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Association for this Listing: A-Miami Association of REALTORSNo HOA |
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Lot Area: 8136 sqft |
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Listing Terms: All Cash, Conventional |
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Mls Number: A11999112 |
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Picnic AreaSource Internet Entire Listing Display |
Last check for updates: about 11 hours ago
Listing courtesy of Fabrice Ernandes, (786) 603-0184
Serhant
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A11999112
Also Listed on MIAMI.
Market trends in Key Biscayne
Last updated May 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
167
2MoM
Price History for 524 Warren Ln
| Date | Price | Event | Source |
|---|---|---|---|
| 06/16/2026 | $3,730,000 | PriceChange | MIAMI #A11999112 |
| 05/18/2026 | $3,750,000 | PriceChange | MIAMI #A11999112 |
| 04/11/2026 | $3,850,000 | Listed For Sale | MIAMI #A11999112 |
| 12/11/2023 | ListingRemoved | Zillow Rentals | |
| 10/06/2023 | $19,800 | Listed For Rent | MIAMI #A11464841 |
| 10/02/2023 | ListingRemoved | MIAMI #A11453947 | |
| 09/16/2023 | $19,800 | Listed For Rent | MIAMI #A11453947 |
| 04/20/2015 | $2,050,000 | Sold | N/A |
| 11/20/2014 | $2,180,000 | Listed For Sale | Agent Provided |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $22,266 |
| Assessment | $2,484,737 |
Home facts updated by county records
Comparable Sales for 524 Warren Ln
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.20 | Single-Family Home | $3,125,000 | 03/09/26 | 5 | 3.5 | 2,429 | |
0.13 | Single-Family Home | $3,500,000 | 01/16/26 | 4 | 3.5 | 2,775 | |
0.04 | Single-Family Home | $3,726,000 | 07/07/25 | 4 | 3 | 2,473 | |
0.09 | Single-Family Home | $4,400,000 | 04/08/26 | 5 | 5 | 3,230 | |
0.20 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.11 | Single-Family Home | $3,700,000 | 01/27/26 | 5 | 5 | 3,962 | |
0.11 | Single-Family Home | $4,475,000 | 04/10/26 | 4 | 3.5 | 3,666 | |
0.09 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.
OFF MARKETCapital Intl Realty LLC
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OFF MARKETOne Sotheby's International Realty
SOLDAPR 10, 2026Coldwell Banker Realty
OFF MARKETUnited Realty Group, Inc
Assigned Schools
These are the assigned schools for 524 Warren Ln.
- Key Biscayne K-8 Center
- PK-8
- Public
- 803 Students
8/10GreatSchools RatingParent Rating Averagethey have nothing they lost it allParent Review8mo ago - Ponce De Leon Middle School
- 6-8
- Public
- 668 Students
6/10GreatSchools RatingParent Rating AverageMi hija estudio en Ponce de León Middle School durante 3 años, y realmente su experiencia fue muy satisfactoria. El personal administrativo, los maestros, Los principales Señor Balboa durante 1 año, y posteriormente la Sra Gonzalez durante los últimos dos años, en fin todo el staff. Nos llevamos muchas buenas experiencias de este colegio. La Sra Marlene Ramos, la coordinadora de IB marca la diferencia, nos aconsejo y acompaño durante estos años cada día, dándonos los mejores consejos y asesorías. Estamos felices de haber pertenecido a esta comunidad. Muchas graciasParent Review2w ago - Coral Gables Senior High School
- PK-12
- Public
- 2931 Students
5/10GreatSchools RatingParent Rating AverageAs a current teacher and Alumni of CGHS, this is, without a doubt, the worst school I have ever taught and studied at. The primary factor for this is the teachers, especially Diana Van-Wyk. She is the "IB Coordinator" of the school, who demonstrates clear favoritism, laziness, apathy, and sexism. As a counsellor and coordinator of such a prestige program such as the IB, I would expect her to care for her students and support them fully through their academic journey, as would most people. However, since she has joined this school years ago, I have seen a noticeable decline in student mental health, overall happiness, and communication with teachers. This is what inspired me to become a teacher, so I could be everything she isn't. Furthermore, I have received multiple student complaints about her, and her failure of communication as well as her stubbornness. I don't think she understands that the students she deals with are socially maturer than most, perhaps indicating why she refuses to admit she's wrong. It is in the best interest of the school to remove her as a faculty.Teacher Review3mo ago 
Check out schools near 524 Warren Ln.
What Locals Say about Key Biscayne
At least 116 Trulia users voted on each feature.
94 % Say it's walkable to grocery stores
94 % Say kids play outside
90 % Say it's dog friendly
90 % Say it's walkable to restaurants
85 % Say people would walk alone at night
85 % Say there are sidewalks
79 % Say it's quiet
79 % Say there's holiday spirit
76 % Say they plan to stay for at least 5 years
68 % Say parking is easy
67 % Say streets are well-lit
60 % Say there are community events
58 % Say neighbors are friendly
54 % Say yards are well-kept
52 % Say there's wildlife
50 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Fabrice Ernandes, Serhant
Agent Phone: (786) 603-0184
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
524 Warren Ln, Key Biscayne, FL 33149 is a 5 bedroom, 4 bathroom, 2,700 sqft single-family home built in 1950. This property is currently available for sale and was listed by MIAMI on Apr 11, 2026. The MLS # for this home is MLS# A11999112.