House Prices

House Prices & Home Values Key Biscayne, FL 2026


Average Data

average house price$2,748,813
average size per house2445 ft²
average price per ft²1125 $ / ft²

04/05/2026 - The value range (VR) for house prices in Key Biscayne, FL is $836/ sqft to $836/ sqft. An average home with 2445 sqft costs approximately $2,044,020 to $2,044,020. Key Biscayne, FL includes 1 ZIP codes and it is located in Miami Dade county. The lowest prices are found in ZIP 33149, while the highest are in ZIP 33149. The average price per sqare feet is $1125. Our analysis is based on 176 property listings.

Avergage prices by ZIP codes Key Biscayne

33149871 $ / ft²


House prices by neighborhoods in Key Biscayne

Biscayne Key Estates910 $ / ft²
Cape Florida885 $ / ft²
Grand Bay862 $ / ft²
Harbor Drive864 $ / ft²
Holiday Colony899 $ / ft²
Key Colony893 $ / ft²
Mashta Island913 $ / ft²
Ocean Club893 $ / ft²
Oceana Key Biscayne906 $ / ft²
Smugglers Cove803 $ / ft²




Historical development of home values in Key Biscayne

Year Estimated value (USD) Change vs. 2025
2010 $1,276,598 -53.6%
2011 $1,227,232 -55.4%
2012 $1,223,928 -55.5%
2013 $1,269,675 -53.8%
2014 $1,332,809 -51.5%
2015 $1,401,214 -49.0%
2016 $1,474,339 -46.4%
2017 $1,553,915 -43.5%
2018 $1,639,824 -40.3%
2019 $1,715,859 -37.6%
2020 $1,804,561 -34.4%
2021 $2,052,494 -25.3%
2022 $2,392,747 -13.0%
2023 $2,523,263 -8.2%
2024 $2,669,237 -2.9%
2025 $2,748,813 0.0%

Graph: estimated home values in Key Biscayne over time (USD)



Example: 100% financing house in Key Biscayne

Loan amount: $2,748,813

Interest rate: 6.00%

Fixed monthly payment: $16,480.52

Breakdown in the 1st month:
Interest portion: $13,744.07  –  Principal portion: $2,736.46

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $164,010.53 $33,755.75 $2,715,057.25
2 $161,928.55 $35,837.73 $2,679,219.53
3 $159,718.15 $38,048.12 $2,641,171.41
4 $157,371.43 $40,394.84 $2,600,776.57
5 $154,879.96 $42,886.31 $2,557,890.26
6 $152,234.83 $45,531.44 $2,512,358.81
7 $149,426.55 $48,339.72 $2,464,019.09
8 $146,445.06 $51,321.21 $2,412,697.88
9 $143,279.68 $54,486.59 $2,358,211.29
10 $139,919.07 $57,847.20 $2,300,364.09
11 $136,351.18 $61,415.09 $2,238,948.99
12 $132,563.23 $65,203.04 $2,173,745.95
13 $128,541.65 $69,224.62 $2,104,521.33
14 $124,272.03 $73,494.25 $2,031,027.08
15 $119,739.06 $78,027.21 $1,952,999.87
16 $114,926.52 $82,839.76 $1,870,160.11
17 $109,817.14 $87,949.13 $1,782,210.98
18 $104,392.63 $93,373.64 $1,688,837.34
19 $98,633.55 $99,132.73 $1,589,704.61
20 $92,519.26 $105,247.01 $1,484,457.60
21 $86,027.85 $111,738.42 $1,372,719.18
22 $79,136.07 $118,630.20 $1,254,088.98
23 $71,819.22 $125,947.05 $1,128,141.93
24 $64,051.08 $133,715.19 $994,426.73
25 $55,803.82 $141,962.45 $852,464.28
26 $47,047.89 $150,718.39 $701,745.90
27 $37,751.91 $160,014.37 $541,731.53
28 $27,882.57 $169,883.70 $371,847.83
29 $17,404.52 $180,361.76 $191,486.07
30 $6,280.20 $191,486.07 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Key Biscayne, FL


1500 sqft3900 sqft
Ø selling price$2,041,876$4,343,625
Ø fast selling$1,856,251$3,909,263
Ø high price sale$2,227,500$4,777,988

In 2026, houses in Key Biscayne, FL will be offered at an average price of $1125 per square foot. A 1,500 sqft home priced at $2,041,876 is 23.94% more expensive per square foot than a 3,900 sqft home priced at $4,343,625. Home prices in Key Biscayne, FL vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $3,007,126. Sellers who can wait longer may achieve a higher price of up to $3,675,376.

FAQ – Home Values in Key Biscayne

What is the median home value in Key Biscayne in 2026?

In 2026, the typical home value in Key Biscayne is about $2,748,813 for an average home size of 2445 square feet. This corresponds to an average price of roughly $1125 per square foot.

What is the average cost per square foot in Key Biscayne?

In 2026, homes in Key Biscayne sell for an average of around $1125 per square foot, with a typical range between $836 and $836 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in Key Biscayne is about 2445 square feet, with an estimated 2026 value around $2,748,813.



Locations close to Key Biscayne, FL

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