$12,314,200
- 6 Beds
- 6 Baths
- 5,191 sqft (on 0.34 acres)
945 Mariner Dr, Key Biscayne, FL 33149
Est. Refi. Payment $83,246/mo*
Refinance Your HomeCurrently Off Market - Sold Apr 28, 2025 for $12,700,000
Home Value
Trulia Estimate
$12.3MSince last month
Increased$75K (+0.6%)Since last year
Decreased$228K (-1.8%)Since last sale
Decreased$353K (-2.8%)Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.
Trulia Estimate
The of this home's value increased by +115% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $12.35M |
| August 2026 | $12.32M |
| July 2026 | $12.27M |
| June 2026 | $12.42M |
| May 2026 | $12.31M |
| April 2026 | $12.51M |
| March 2026 | $12.49M |
| February 2026 | $12.4M |
| January 2026 | $12.4M |
2025 | |
2024 | |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2018 | |
2017 | |
2016 | |
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.14 | Single-Family Home | $6,500,000 | 03/31/26 | 7 | 7.5 | 5,528 | |
0.40 | Single-Family Home | $14,000,000 | 08/03/26 | 4 | 4.5 | 4,290 | |
0.25 | Single-Family Home | $21,000,000 | 02/26/26 | 6 | 7 | 8,031 | |
0.20 | Single-Family Home | $5,690,000 | 06/15/26 | 6 | 5 | 3,584 | |
0.83 | Single-Family Home | $10,850,000 | 08/07/26 | 7 | 5.5 | 5,008 | |
0.44 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.19 | Single-Family Home | $625,000 | 04/09/26 | 6 | 6 | 4,142 | |
0.84 | Single-Family Home | $10,500,000 | 07/01/26 | 5 | 5.5 | 5,074 | |
0.43 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.41 | Single-Family Home | $3,700,000 | 01/27/26 | 5 | 5 | 3,962 |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.03 | $19,500,000 | 6 | 9 | 7,742 | For Sale | |
0.06 | $16,299,000 | 5 | 6.5 | 5,760 | Off Market | |
0.12 | $3,813,600 | 4 | 3.5 | 2,861 | Off Market | |
0.14 | $6,500,000 | 7 | 7.5 | 5,528 | Recently Sold | |
0.14 | $5,112,000 | 6 | 6 | 3,628 | Off Market | |
0.17 | $12,485,000 | 6 | 7 | 6,405 | For Sale | |
0.18 | $3,181,100 | 5 | 4 | 2,867 | Off Market | |
0.15 | $3,161,100 | 4 | 3 | 2,403 | Off Market | |
0.16 | $5,200,000 | 5 | 4.5 | 3,535 | For Sale | |
0.18 | $6,395,000 | 5 | 5.5 | 4,003 | For Sale | |
0.14 | $19,335,200 | 7 | 6.5 | 6,333 | Off Market |
Local Information
-- mins to
Home Highlights
Single-Family Home
Built in 1983
0.34 acre lot
5,191 sqft
$2,372/sqft
2 Car Garage
About this House
Experience the ultimate Miami lifestyle in this stunning waterfront residence, featuring an extraordinary dock – a true boater’s paradise. Meticulously remodeled, this elegant home boasts spacious, open areas filled with natural light, great terraces, and impeccable finishes that capture the vibrant allure of Miami. Enjoy breathtaking views from nearly every room, bringing a sense of serenity and connection to the water. With 6 beautiful bedrooms, 6 baths, and a 2-car garage, it’s designed for both luxury and comfort. Outside, a gorgeous pool and a brand-new gazebo create the perfect setting for gatherings and relaxation. Situated on a serene private street in the exclusive paradise of Key Biscayne, this retreat truly offers the best of island living. Embrace your own private sanctuary.
945 Mariner Dr, Key Biscayne, FL 33149 is a 6 bedroom, 6 bathroom, 5,191 sqft single-family home built in 1983. It last sold for $12,700,000 on Apr 28, 2025 (2% below the $12,950,000 asking price). More recently, it was listed as a rental in May 2024 with an asking price of $40,000 per month. That rental listing was removed on May 18, 2024. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $12,314,200, with a rent estimate of $80,909/month.
Last check for updates: about 6 hours ago
Listed by Brigitte Nachtigall, (305) 710-9664
One Sotheby's International Realty
Mark Chatburn, (305) 393-6032
One Sotheby's International Realty
Bought with: Giulietta Ulloa, (305) 710-6620, BHHS EWM Realty
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A11684771

Home Details for 945 Mariner Dr
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Beds & Baths Number of Bedrooms: 6Number of Bathrooms: 6Number of Bathrooms (full): 6 |
Dimensions and Layout Living Area: 5191 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Disposal, Dryer, Electric Water Heater, Electric Range, Refrigerator, Oven, WasherDishwasherDisposalDryerLaundry: Laundry RoomRefrigeratorWasher |
Heating & Cooling Heating: ElectricHas CoolingAir Conditioning: ElectricHas HeatingHeating Fuel: Electric |
Windows, Doors, Floors & Walls Window: BlindsFlooring: Ceramic Tile |
Levels, Entrance, & Accessibility Stories: 2Entry Location: First Floor Entry, FoyerFloors: Ceramic Tile |
View Has a ViewView: Canal |
Security Security: Smoke Detector |
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Exterior Home Features Roof: ConcretePatio / Porch: Open Porch, PatioFencing: FencedHas a Private Pool |
Parking & Garage Number of Garage Spaces: 2Number of Covered Spaces: 2Has a GarageHas an Attached GarageHas Open ParkingParking Spaces: 2Parking: Circular Driveway,Covered,Driveway,Garage Door Opener |
Pool Pool: In Ground, CommunityPool |
Frontage WaterfrontWaterfront: Ocean Access, Canal Front, WF/Pool/Ocean AccessOn Waterfront |
Water & Sewer Sewer: Public Sewer |
Farm & Range Frontage Length: 0Not Allowed to Raise Horses |
Surface & Elevation Elevation Units: Feet |
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Year Built Year Built: 1983 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: House,Attached |
Building Building Name: Cape Fla Sub Sec 2Construction Materials: CBS Construction |
Property Information Usage of Home: Unknown/WithheldParcel Number: 2452050110250 |
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Price List Price: $12,950,000 |
Status Change & Dates Off Market Date: Tue Feb 25 2025Possession Timing: Funding |
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MLS Status: Closed |
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Direction & Address City: Key BiscayneCommunity: Cape Fla Sub Sec 2 |
School Information Elementary School: KeybiscayneHigh School: Mast Academy |
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Building Area Building Area: 6526 Square Feet |
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Community Features: Pool |
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Association for this Listing: A-Miami Association of REALTORSNo HOA |
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Lot Area: 0.34 acres |
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Contingencies: No ContingenciesListing Terms: All Cash, Conventional |
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Mls Number: A11684771Water ViewWater View: Canal |
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PoolSource Internet Entire Listing Display |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Apr 28, 2025 Source: MIAMI #A11684771 | Sold | $12,700,000 |
Mar 25, 2025 Source: MIAMI #A11684771 | Pending | $12,950,000 |
Feb 20, 2025 Source: MIAMI #A11684771 | PriceChange | $12,950,000 Price decreased by 4% |
Dec 27, 2024 Source: MIAMI #A11684771 | PriceChange | $13,450,000 Price decreased by 7% |
Nov 8, 2024 Source: MIAMI #A11684771 | Listed For Sale | $14,475,000 |
Jun 29, 2024 Source: MIAMI #A11565697 | ListingRemoved | $15,900,000 |
May 18, 2024 Source: MIAMI #A11507824 | ListingRemoved | |
May 9, 2024 Source: MIAMI #A11507824 | Listed For Rent | $40,000 |
Apr 9, 2024 Source: MIAMI #A11507824 | ListingRemoved | |
Apr 9, 2024 Source: MIAMI #A11565697 | Listed For Sale | $15,900,000 |
Jan 3, 2024 Source: MIAMI #A11507824 | Listed For Rent | $40,000 |
Mar 4, 2021 Source: MIAMI #A10876063 | Sold | $5,750,000 |
Feb 17, 2021 Source: MIAMI #A10876063 | Pending | $5,975,000 |
Dec 23, 2020 Source: MIAMI #A10876063 | Contingent | $5,975,000 |
Dec 22, 2020 Source: Agent Provided | PendingToActive | $5,975,000 |
Oct 15, 2020 Source: Agent Provided | Pending | $5,975,000 |
Jul 27, 2020 Source: Agent Provided | PriceChange | $5,975,000 Price decreased by 6% |
Jun 15, 2020 Source: Agent Provided | Listed For Sale | $6,375,000 |
Jan 1, 2020 Source: Agent Provided | ListingRemoved | $5,875,000 |
Jul 16, 2019 Source: Agent Provided | PriceChange | $5,875,000 Price decreased by 8% |
Feb 6, 2019 Source: Agent Provided | Listed For Sale | $6,375,000 |
Jun 20, 2017 Source: Agent Provided | ListingRemoved | $6,750,000 |
Apr 19, 2016 Source: Agent Provided | Listed For Sale | $6,750,000 |
Mar 5, 2016 Source: Agent Provided | ListingRemoved | $6,975,000 |
Sep 4, 2015 Source: Agent Provided | Listed For Sale | $6,975,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $119,419 | $7,931,195 |
Home facts updated by county records
Market trends in Key Biscayne
Last updated July 2026
Avg. sale price
$1.56M
$26.67KMoM
Sale-to-List Price
94.6%
Price per sq ft
$981
$37MoM
Available listings
144
15MoM
Around this home
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
86 % Say people would walk alone at night
86 % 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

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.
Frequently asked questions about 945 Mariner Dr
- What is 945 Mariner Dr estimated to be worth?Trulia's estimated value for 945 Mariner Dr in Key Biscayne, FL is $12,314,200.
- What is the price history for 945 Mariner Dr?945 Mariner Dr in Key Biscayne, FL last sold for $12,700,000 in April 2025.
- Is Key Biscayne a buyer's or seller's market?Key Biscayne is currently a buyer's market, based on recent for-sale activity.
- What's the median sale price in Key Biscayne?The median sale price in Key Biscayne is $1.56M. That is down $26.67K from the prior month.
- Does 945 Mariner Dr have air conditioning?Yes, 945 Mariner Dr in Key Biscayne, FL has air conditioning.
- Does 945 Mariner Dr have a pool?Yes, 945 Mariner Dr in Key Biscayne, FL has a pool.

