Key Biscayne Real Estate Market Overview in October 2025
Sale Market Overview
Median Sale Price: The median sale price for all bedrooms houses and condos in Key Biscayne is $4,757,551 in October 2025, averaging $1,949 per square foot.
Median Sold Price: The median sold price for all bedrooms houses and condos in Key Biscayne in the last 12 months is $2,580,257, averaging $1,266 per square foot.
Properties Available for Sale: There are 158 properties for sale in Key Biscayne, of which 48 are houses and 110 are condominium units listed for sale now.
Days in the Market: Key Biscayne properties are selling after an average of 93 days on the market.
Rental Market Overview
Median List Price for Rent: The median rental price for all bedrooms houses and condos in Key Biscayne is $14,966 in October 2025, averaging $7 per square foot.
Average Rent: The average rent in Key Biscayne for all bedrooms houses and condos in the last 12 months is $8,921 per month, averaging $5 per square foot.
Properties Available for Rent: There are 163 properties for rent right now in Key Biscayne, of which 30 are houses and 133 are condos.
Days in the Market: Key Biscayne properties are renting after an average of 82 days on the market.
Pros and Cons for Buying a Property in Key Biscaine in October 2025
Pros of Buying a Property in Key Biscayne
Exclusive Location: With a limited number of properties on an exclusive island, buyers invest in a unique and prestigious location.
Long-term Value: Despite current market fluctuations, the long-term value of properties in Key Biscayne has traditionally been strong due to its desirability and limited supply.
Strong Rental Market: The rental market in Key Biscayne is robust, with high median rents that can yield significant returns for property owners.
Wealthy Demographics: With a per capita income of $79,743, which is wealthy relative to Florida and the nation, the demographics of Key Biscayne support a high-end rental and sales market​​.
Cons of Buying a Property in Key Biscayne
High Entry Price: The cost of entry into the Key Biscayne market is steep, making it challenging for average buyers.
Market Volatility: Like any upscale market, Key Biscayne can experience significant price fluctuations, which may impact short-term investments.
High Cost of Living: The cost of living in Key Biscayne is significantly higher than the national average, with utility, groceries, and transportation costs all above average due to its island location.
Sold Units (30 days)
Unit
Beds / Baths
Liv Area SqFt
Sold Price
Price/SqFt
Close Date
251 Galen Dr #112E
2 BR / 2.0 BA
1,109 SqFt
$400,000
$361/Sqft
10/24/2025
199 Ocean Lane Dr #706
2 BR / 2.0 BA
1,260 SqFt
$1,250,000
$992/Sqft
10/24/2025
199 Ocean Lane Dr #1005
3 BR / 3.1 BA
2,155 SqFt
$2,250,000
$1,044/Sqft
10/22/2025
765 Crandon Blvd #PH-12
3 BR / 4.1 BA
3,112 SqFt
$2,850,000
$916/Sqft
10/22/2025
260 Sunrise Dr #E
2 BR / 2.0 BA
1,250 SqFt
$705,000
$564/Sqft
10/17/2025
725 Fernwood Rd
3 BR / 2.0 BA
2,159 SqFt
$2,400,000
$1,112/Sqft
10/15/2025
765 Crandon Blvd #510
3 BR / 3.0 BA
2,602 SqFt
$2,700,000
$1,038/Sqft
10/14/2025
799 Crandon Blvd #1208
3 BR / 4.1 BA
3,011 SqFt
$4,950,000
$1,644/Sqft
10/10/2025
220 Cypress Dr
5 BR / 5.1 BA
4,089 SqFt
$4,600,000
$1,125/Sqft
10/10/2025
199 Ocean Lane Dr #1015
2 BR / 2.0 BA
1,350 SqFt
$1,275,000
$944/Sqft
10/09/2025
5 Harbor Pt
3 BR / 4.2 BA
10,926 SqFt
$23,500,000
$2,151/Sqft
10/09/2025
320 Woodcrest Rd
6 BR / 6.0 BA
3,737 SqFt
$5,220,000
$1,397/Sqft
10/01/2025
201 Crandon Blvd #633
2 BR / 2.0 BA
1,541 SqFt
$1,210,000
$785/Sqft
09/29/2025
251 Crandon Blvd #829
2 BR / 2.0 BA
1,532 SqFt
$1,420,000
$927/Sqft
09/29/2025
Average Price: $927/Sqft
Rented Units (30 days)
Unit
Beds / Baths
Liv Area SqFt
Rented Price
Price/SqFt
Close Date
255 Galen Dr #3D
2 BR / 2.0 BA
1,036 SqFt
$4,250
$4/Sqft
10/22/2025
201 Galen Dr #201
2 BR / 2.0 BA
1,109 SqFt
$3,300
$3/Sqft
10/22/2025
121 Crandon Blvd #453
3 BR / 2.0 BA
1,720 SqFt
$6,900
$4/Sqft
10/20/2025
151 Crandon Blvd #237
2 BR / 2.0 BA
1,532 SqFt
$5,000
$3/Sqft
10/20/2025
613 Ocean Dr #8C
2 BR / 2.0 BA
1,496 SqFt
$7,000
$5/Sqft
10/20/2025
201 Crandon Blvd #739
2 BR / 2.0 BA
1,541 SqFt
$7,900
$5/Sqft
10/16/2025
155 Sunrise Dr #3A
2 BR / 2.0 BA
1,212 SqFt
$4,200
$3/Sqft
10/15/2025
201 Galen Dr #211W
2 BR / 2.0 BA
1,200 SqFt
$3,400
$3/Sqft
10/15/2025
251 Crandon Boulevard #734
2 BR / 2.0 BA
1,560 SqFt
$6,200
$4/Sqft
10/15/2025
55 Ocean Lane Dr #3021
2 BR / 2.0 BA
1,450 SqFt
$4,700
$3/Sqft
10/14/2025
100 Sunrise Dr #32
0 BR / 1.0 BA
410 SqFt
$1,700
$4/Sqft
10/13/2025
789 Crandon Blvd #1406
3 BR / 5.1 BA
2,790 SqFt
$19,500
$7/Sqft
10/13/2025
181 Crandon Blvd #206
2 BR / 2.0 BA
1,600 SqFt
$4,950
$3/Sqft
10/10/2025
725 Crandon Blvd #203
4 BR / 3.0 BA
2,174 SqFt
$18,000
$8/Sqft
10/08/2025
791 Crandon Blvd #704
3 BR / 3.0 BA
2,510 SqFt
$20,000
$8/Sqft
10/07/2025
1121 Crandon Blvd #E1006
2 BR / 2.0 BA
1,409 SqFt
$6,200
$4/Sqft
10/06/2025
77 Crandon Blvd #10D
2 BR / 2.0 BA
1,231 SqFt
$4,400
$4/Sqft
10/05/2025
613 Ocean Dr #8D
2 BR / 2.0 BA
1,496 SqFt
$7,250
$5/Sqft
10/01/2025
1121 Crandon Blvd #E802
3 BR / 2.0 BA
1,782 SqFt
$6,750
$4/Sqft
10/01/2025
155 Ocean Lane Dr #1006
1 BR / 1.1 BA
895 SqFt
$3,300
$4/Sqft
10/01/2025
251 Crandon Blvd #227
2 BR / 2.0 BA
1,546 SqFt
$8,500
$6/Sqft
10/01/2025
791 Crandon Blvd #1401
3 BR / 2.1 BA
2,174 SqFt
$12,000
$6/Sqft
10/01/2025
735 Fernwood Rd
5 BR / 6.1 BA
3,742 SqFt
$25,000
$7/Sqft
09/30/2025
798 Crandon Bl #14-C
2 BR / 1.1 BA
875 SqFt
$3,200
$4/Sqft
09/29/2025
201 Crandon Blvd #336
1 BR / 1.1 BA
1,134 SqFt
$4,750
$4/Sqft
09/29/2025
Average Price: $4/Sqft
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