Key Biscayne Homes for Sale Over $5 Million
There are 42 homes over $5 million for sale in Key Biscayne right now, with a median asking price of $8.38M. The most active communities are Biscayne Key Estates, Cape Florida Sub Sec 3, Tropical Isle Homes Sub 4.
- 42
- For sale now
- $8.38M
- Median asking price
- $2,056
- Median price per sq ft
- 107
- Median days on market
- 0
- New in the last 7 days
By price
- Under $500K0
- $500K to $1M0
- $1M to $2M0
- $2M to $5M0
- $5M and up42
Most active communities
- Biscayne Key Estates8
- Cape Florida Sub Sec 35
- Tropical Isle Homes Sub 44
- Oceana Key Biscayne Condo3
- Tropical Isle Homes Sub3
- Cape Fla Sub Sec 22
- Club Tower Two Condo2
- Mashta Island2
Key Biscayne inventory trend
Trend available from Oct 27, 2026. We record the market nightly and never back-fill history.
Trend available from Dec 26, 2026. We record the market nightly and never back-fill history.
Trend available from Sep 27, 2027. We record the market nightly and never back-fill history.
Listing courtesy of Luxe Living Realty (Dora Puig). Contact: [email protected].
Listing courtesy of One Sotheby's International Realty (Mark Chatburn). Contact: [email protected].
Listing courtesy of Avanti Way Realty LLC (Marisela Gonzalez Servat). Contact: [email protected].
Listing courtesy of Coldwell Banker Realty (Adriana Vollmer). Contact: [email protected].
Listing courtesy of Douglas Elliman (Kaila Mardoyan). Contact: [email protected].
Listing courtesy of Fortune Christie's Intl R.E. (Jacqueline Molina). Contact: [email protected].
Listing courtesy of DLS International Realty (Brigitte De Langeron). Contact: [email protected].
Listing courtesy of Compass Florida, LLC (Xiomara Cortes). Contact: [email protected].
Listing courtesy of HR 19 Realty LLC (Adolfo Yanes Luciani). Contact: [email protected].
Listing courtesy of Great Properties International LLC (Josefina Fiorito). Contact: [email protected].
Listing courtesy of One Sotheby's International Realty (Brigitte Nachtigall). Contact: [email protected].
Listing courtesy of BHHS EWM Realty (Victoria De Giraldo). Contact: [email protected].
Listing courtesy of Scale Commercial Realty (Pablo Rodriguez). Contact: [email protected].
Listing courtesy of Ocean Club Realty, Inc. (Victor Florencio Sanchez). Contact: [email protected].
Listing courtesy of One Sotheby's International Realty (Brigitte Nachtigall). Contact: [email protected].
Listing courtesy of Fortune Christie's International Real Estate (Douglas Kinsley). Contact: [email protected].
Listing courtesy of One Sotheby's International Realty (Claudine Coto). Contact: [email protected].
Listing courtesy of Swann Realty Partners, LLC. (Camila Freytes De Marotta). Contact: [email protected].
More in Key Biscayne
Over $5M in other cities
Key Biscayne by zip code
Questions, answered from the data
How many homes over $5 million are for sale in Key Biscayne?
42 listings are active in the MLS right now. The count updates hourly.
What is the median asking price for homes over $5 million in Key Biscayne?
$8,375,000, the midpoint of the 42 active asking prices. Asking prices run from $5,100,000 to $237,000,000.
What do homes over $5 million in Key Biscayne cost per square foot?
The median asking price is $2,056 per square foot of living area, across listings that report their size.
How long do homes over $5 million in Key Biscayne stay on the market?
The median active listing has been on the market 107 days. A home priced right for its community usually moves faster than the median.
What is the highest asking price among homes over $5 million in Key Biscayne?
The highest asking price right now is $237,000,000, for a single family residence in Tropical Isle Homes Resub.
How many homes over $5 million in Key Biscayne are on the water?
50% of the active listings are waterfront, as the listing agents report it.
What kinds of homes are for sale in Key Biscayne?
33 single family residence, 9 condominium, by the MLS property type.
What are HOA fees like in Key Biscayne?
Among listings that report an association fee, most fall between about $2,421 and $6,381 a month (the middle 80 percent), as listed. Confirm the current fee and any special assessment with the association.
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Listing data provided by the Southeast Florida Multiple Listing Service (MIAMI REALTORS®). The data is deemed reliable but is not guaranteed accurate by the MLS. IDX information is provided exclusively for consumers' personal, non-commercial use, may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and is deemed reliable but is not guaranteed accurate by the MLS. Figures are computed from active listings in the MLS and describe asking prices, not closed sales. Atlantic Luxury Advisors is a real estate team at Keller Williams Realty.