$19,750,000
1080 Mariner Drive
Key Biscayne, FL 33149
Explore the area: Key Biscayne homes for sale · Miami Dade County real estate
Price Check
How this price compares
- List price
- $19,750,000
- Price per sq ft
- $3,053
- Original price
- Unchanged
- Days on market
- N/A
This 6-bedroom single-family home in ZIP 33149 is listed at $19,750,000, or $3,053 per square foot.
Estimated monthly payment
$103,795 /mo
Principal and interest only, based on $3,950,000 down (20%), a 6.875% 30-year fixed rate. Property taxes, homeowners insurance are not included.
Customize this estimateListing Snapshot
- Price
- $19,750,000
- Days on Site
- 0 Days
- Bedrooms
- 6
- Total Baths
- 7
- Full Baths
- 6
- Partial Baths
- 1
- Living Area
- 6,468 sqft
- Total Sq Ft
- 8,699 sqft
- Lot Size
- 0.3 Acres
- Year Built
- 2018
- Property Type
- Single Family
- MLS #
- A12117649
- Property Tax
- $138,676 (2025)
- Subdivision
- CAPE FLA SUB SEC 2
- County
- Miami Dade
- Status
- Active
- Special Conditions
- Listed As Is
About This Property
Spanning over 6,200 sq. ft. with 6 bedrooms and 6.5 baths, the home sits at the end of a private cul-de-sac with sweeping water and mangrove views. A dramatic entry opens to light-filled living spaces with floor-to-ceiling glass, wide-plank European oak floors, and custom millwork throughout. The sleek chef’s kitchen features Italian cabinetry, a marble waterfall island, and top-of-the-line Miele and Sub-Zero appliances. The primary suite offers a private sitting area, expansive custom closets, and a spa-style bathroom with book-matched marble, freestanding soaking tub, dual vanities, and glass-enclosed rain shower. Secondary suites are equally refined, each with bespoke finishes and private baths. Seamlessly connecting indoors and outdoors, the residence showcases covered terraces with natural stone flooring, a summer kitchen with custom cabinetry and Wolf appliances, and a resort-style pool surrounded by tropical gardens curated by CCLA. A private dock with direct Biscayne Bay access completes the waterfront lifestyle. Located within one of Miami’s most coveted island communities, this estate blends modern craftsmanship with timeless design, just minutes from pristine beaches, parks, dining, and top-rated schools.
MLS media linkGeneral Features
- Property Type
- Single Family
- Status
- Active
- Year Built
- 2018
- Property Condition
- Resale
- Number of Stories
- 2
- Levels
- Two
- Garage Spaces
- 2
- Parking
- Driveway / Paver Block
- Direction Faces
- South
- Lot Size (Acres)
- 0.3
- Living Sq Ft
- 6,468
- Total Sq Ft
- 8,699
- Sewer
- Public Sewer
- Water Source
- Public
- Zoning
- 2000
Interior Features
- Appliances
- Dryer / Dishwasher / Disposal / Microwave / Oven / Washer
- Cooling
- Central Air / Electric
- Heating
- Central / Electric
- Flooring
- Tile
- Interior Features
- Kitchen Island / Main Level Primary / Upper Level Primary
- Total Rooms
- 1
- Furnished
- Unfurnished
Exterior Features
- Construction
- CBS Concrete Block Structure / Block
- Roof
- Aluminum
- Exterior Features
- Barbecue
- Private Pool
- Yes
- Pool Features
- Other
- Lot Features
- Quarter To Half Acre Lot
- Waterfront
- Yes
- Waterfront Features
- Other
- Frontage Length
- 0.00 ft
- View
- Canal / Pool
Community & HOA
- Association Amenities
- Other
- 55+ Community
- Yes
- Financing Terms
- Cash / Conventional
- Restrictions
- No Restrictions
- MLS Area
- 2520
Schools
- Elementary School
- Key Biscayne K-8
- Middle School
- Ponce De Leon
- High School
- Coral Gables
About the Community
Cape Fla Sub Sec 2 is an age-restricted 55+ community in Key Biscayne, Miami-Dade County, Florida, governed under the Housing for Older Persons Act (HOPA). Homes are priced from $11,600,000 to $20,300,000. At least one resident per home must be 55 or older. Pure Equity lists homes in Cape Fla Sub Sec 2 and represents buyers. Commission is negotiable, and what we are paid is agreed with you in writing before you commit to anything.
- Homes for Sale
- 4
- Under Contract
- 0
- Median List Price
- $19,475,000
- Median $/Sq Ft
- $2,786
- Avg Days on Market
- 170
Frequently Asked Questions
- How do I schedule a tour of 1080 Mariner Drive, Key Biscayne, FL 33149?
- Use the Tour button on this listing to request a showing of 1080 Mariner Drive, Key Biscayne, FL 33149. Pick a day and time and choose an in-person or video-chat tour, and a Pure Equity agent will confirm your visit, often the same day.
- Is 1080 Mariner Drive, Key Biscayne, FL 33149 still available?
- 1080 Mariner Drive, Key Biscayne, FL 33149 is currently listed as Active. Status updates directly from the MLS as homes go under contract, so ask us to confirm availability before you plan a visit.
- How much is the monthly payment for 1080 Mariner Drive, Key Biscayne, FL 33149?
- With 20% down ($3,950,000) on the $19,750,000 list price and a 30-year fixed loan at an illustrative 6.875% rate, the estimated principal & interest for 1080 Mariner Drive, Key Biscayne, FL 33149 is about $103,795/mo, before property taxes, insurance. Use the payment estimate on this page to adjust the down payment and rate.
- How do I get pre-approved to buy 1080 Mariner Drive, Key Biscayne, FL 33149?
- Getting pre-approved shows sellers you're a serious buyer and clarifies your true budget before you offer on 1080 Mariner Drive, Key Biscayne, FL 33149. Contact Pure Equity and we'll connect you with a trusted local lender to review your financing options, no obligation.
- What schools serve 1080 Mariner Drive, Key Biscayne, FL 33149?
- 1080 Mariner Drive, Key Biscayne, FL 33149 is zoned for Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments and boundaries can change year to year, so confirm current zoning with the local school district before you buy.
- Can I negotiate the price of 1080 Mariner Drive, Key Biscayne, FL 33149?
- Often, yes. The right offer on 1080 Mariner Drive, Key Biscayne, FL 33149 depends on how it's priced against comparable single family sales in Key Biscayne, how long it's been listed, and how motivated the seller is. Pure Equity will run the comps and help you craft a competitive, well-supported offer.
Listing courtesy of One Sotheby's International Realty
Listing information is provided by BeachesMLS, Inc.and is deemed reliable but not guaranteed accurate by the MLS or Pure Equity. Information is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. © 2026 BeachesMLS, Inc. Last updated November 14, 2026.
$19,750,000
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Listed by Alina De La Vega, One Sotheby's International Realty
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Recent Sales
Recently sold homes in ZIP 33149
These are the last 6 recorded closings in ZIP 33149, with the price each home actually sold for rather than what it was listed at. They closed at a median of $1,131 per square foot. The most recent closed on November 13, 2026. Closed sales are what an appraiser and a buyer's agent will look at, so they are the starting point for pricing a home here.
Sold$11,100,000
Sold · November 13, 2026
350 Ocean Drive 701N
4 bed · 5.5 bath · 3,787 sqft · $2,931/sqft
$395,000 under the asking price
Sold$3,200,000
Sold · November 13, 2026
430 Grand Bay Drive 307
3 bed · 4 bath · 2,840 sqft · $1,127/sqft
$200,000 under the asking price
Sold$1,750,000
Sold · November 13, 2026
151 Crandon Boulevard 138
2 bed · 3 bath · 1,547 sqft · $1,131/sqft
$50,000 under the asking price
Sold$1,700,000
Sold · November 10, 2026
260 Crandon Boulevard A51
0 bed · 0 bath
$290,000 under the asking price
Sold$670,000
Sold · November 9, 2026
798 Crandon Boulevard 16-C
2 bed · 2 bath · 875 sqft · $766/sqft
$29,000 under the asking price
Sold$3,300,000
Sold · November 6, 2026
430 Grand Bay Drive 708
3 bed · 3 bath · 2,840 sqft · $1,162/sqft
$190,000 under the asking price
See every recorded sale in ZIP 33149 or find out what your ZIP 33149 home is worth.
