House Prices

Grand Bay Key Biscayne, FL House Prices & Home Values 2026


Average Data

average house price$2,834,026
average size per house2521 ft²
average price per ft²1160 $ / ft²

04/05/2026 - The value range (VR) for house prices in Grand Bay Key Biscayne, FL is $1102/ sqft to $1218/ sqft. An average home with 2521 sqft costs approximately $2,864,265 to $3,165,766. 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 $1160. Our analysis is based on 16 property listings.

Avergage prices by ZIP codes Grand Bay Key Biscayne

33149862 $ / ft²




Historical development of home values in Grand Bay Key Biscayne

Year Estimated value (USD) Change vs. 2025
2010 $1,316,173 -53.6%
2011 $1,265,276 -55.4%
2012 $1,261,870 -55.5%
2013 $1,309,035 -53.8%
2014 $1,374,126 -51.5%
2015 $1,444,651 -49.0%
2016 $1,520,043 -46.4%
2017 $1,602,086 -43.5%
2018 $1,690,658 -40.3%
2019 $1,769,051 -37.6%
2020 $1,860,503 -34.4%
2021 $2,116,121 -25.3%
2022 $2,466,922 -13.0%
2023 $2,601,483 -8.2%
2024 $2,751,983 -2.9%
2025 $2,834,026 0.0%

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



Example: 100% financing house in Grand Bay Key Biscayne

Loan amount: $2,834,026

Interest rate: 6.19%

Fixed monthly payment: $17,331.79

Breakdown in the 1st month:
Interest portion: $14,609.40  –  Principal portion: $2,722.39

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $174,370.51 $33,611.00 $2,800,415.00
2 $172,231.36 $35,750.15 $2,764,664.86
3 $169,956.06 $38,025.44 $2,726,639.41
4 $167,535.96 $40,445.55 $2,686,193.86
5 $164,961.82 $43,019.68 $2,643,174.18
6 $162,223.86 $45,757.64 $2,597,416.54
7 $159,311.65 $48,669.86 $2,548,746.68
8 $156,214.08 $51,767.42 $2,496,979.26
9 $152,919.38 $55,062.13 $2,441,917.14
10 $149,414.98 $58,566.52 $2,383,350.62
11 $145,687.55 $62,293.95 $2,321,056.66
12 $141,722.90 $66,258.61 $2,254,798.05
13 $137,505.91 $70,475.60 $2,184,322.46
14 $133,020.53 $74,960.97 $2,109,361.48
15 $128,249.69 $79,731.82 $2,029,629.67
16 $123,175.21 $84,806.30 $1,944,823.37
17 $117,777.76 $90,203.74 $1,854,619.62
18 $112,036.80 $95,944.70 $1,758,674.92
19 $105,930.46 $102,051.04 $1,656,623.88
20 $99,435.49 $108,546.02 $1,548,077.86
21 $92,527.14 $115,454.36 $1,432,623.49
22 $85,179.12 $122,802.38 $1,309,821.11
23 $77,363.44 $130,618.07 $1,179,203.04
24 $69,050.33 $138,931.17 $1,040,271.87
25 $60,208.15 $147,773.36 $892,498.51
26 $50,803.20 $157,178.30 $735,320.21
27 $40,799.69 $167,181.82 $568,138.39
28 $30,159.51 $177,822.00 $390,316.40
29 $18,842.14 $189,139.37 $201,177.03
30 $6,804.48 $201,177.03 $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 Grand Bay Key Biscayne, FL


1500 sqft3900 sqft
Ø selling price$2,170,668$4,617,602
Ø fast selling$1,973,334$4,155,842
Ø high price sale$2,368,001$5,079,362

In 2026, houses in Grand Bay Key Biscayne, FL will be offered at an average price of $1160 per square foot. A 1,500 sqft home priced at $2,170,668 is 23.71% more expensive per square foot than a 3,900 sqft home priced at $4,617,602. Home prices in Grand Bay Key Biscayne, FL vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $3,196,802. Sellers who can wait longer may achieve a higher price of up to $3,907,202.


Grand Bay, Key Biscayne, FL: Oceanfront Luxury Living

Overview

Grand Bay in Key Biscayne, FL is a gated, oceanfront enclave known for luxury condominium living and resort-style amenities.

Set along the Atlantic shoreline, the community offers sweeping views of Biscayne Bay, the Miami skyline, and pristine beaches.

Amenities & Lifestyle

Residents enjoy private beach access, multiple pools, a state-of-the-art fitness center, and on-site concierge services.
Tennis courts, lush tropical landscaping, and walking paths create a serene, vacation-like atmosphere year-round.

Grand Bay?s pet-friendly policies, 24/7 security, and covered parking add convenience and peace of mind for full-time and seasonal residents.

Location & Recreation

The location places homeowners just minutes from the Ritz-Carlton Key Biscayne, island boutiques, and acclaimed restaurants.

Outdoor enthusiasts appreciate quick access to Crandon Park, Bill Baggs Cape Florida State Park, sailing clubs, and nearby marinas.

Residences & Real Estate

Architecturally, the residences feature spacious floor plans, expansive terraces, and floor-to-ceiling glass that maximize natural light and ocean breezes.

The Key Biscayne real estate market here is prized for its strong demand, limited inventory, and investment appeal among domestic and international buyers.

Whether seeking a primary home or a vacation retreat, Grand Bay delivers an exclusive waterfront lifestyle in one of Miami?s most desirable neighborhoods.



FAQ – Home Values in Grand Bay Key Biscayne

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

In 2026, the typical home value in Grand Bay Key Biscayne is about $2,834,026 for an average home size of 2521 square feet. This corresponds to an average price of roughly $1160 per square foot.

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

In 2026, homes in Grand Bay Key Biscayne sell for an average of around $1160 per square foot, with a typical range between $1102 and $1218 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Grand Bay?

The average home size in Grand Bay Key Biscayne is about 2521 square feet, with an estimated 2026 value around $2,834,026.



Neighborhoods close to Grand Bay Key Biscayne, FL

The Hammocks Miami, FL196 $ / ft²
Woodmont Fort Lauderdale, FL189 $ / ft²
Singer Island West Palm Beach, FL314 $ / ft²
Flagami Miami, FL323 $ / ft²
Gifford Vero Beach, FL181 $ / ft²
Lockmar Estates Palm Bay, FL139 $ / ft²
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