On Key Biscayne the property type is the story. Single-family homes carry a median near $4,300,000 while condos sit near $1,440,000 as of mid-2026, both up year over year. The condo side has the volume; the single-family side is a tighter trophy market.
The Village of Key Biscayne is an island town off the Rickenbacker Causeway with its own schools, beaches, and a gated feel. It is genuinely two markets: a deep condo segment and a smaller, pricier single-family segment. This page keeps them separate so the island's condo median and house median each stay clean.
Buyers here are paying for the island as much as the property, so I always layer building quality, water exposure, and lot onto these neighborhood medians.
Key Biscayne Prices by Property Type
Use the toggle to switch between property types. Each one keeps its own median, price per square foot, and trend, so single-family homes and condos never distort each other.
Condos & co-ops in Key Biscayne, based on about 52 sales over the trailing three months.
Key Biscayne Condos scoreboard
Condos are the liquid heart of Key Biscayne. The median sat near $1,440,000 at about $920 per square foot, up about 20 percent year over year, on roughly 52 sales over the trailing three months. With that volume the condo median is reliable. Oceanfront versus interior and building age drive most of the spread inside this number, so I price by building and line.
| Period (3-mo end) | Value |
|---|---|
| 2025-12 | $1,260,000 |
| 2026-01 | $1,250,000 |
| 2026-02 | $1,200,000 |
| 2026-03 | $1,197,000 |
| 2026-04 | $1,225,000 |
| 2026-05 | $1,440,000 |
| Segment | Months of supply | Market |
|---|---|---|
| Key Biscayne Condos | 6.6 | Balanced |
Rule of thumb: under 5 months of supply = seller's market, 5 to 7 = balanced, over 7 = buyer's market. Months of supply is derived from active inventory and the trailing 3-month sale pace.
| Period (3-mo end) | Value |
|---|---|
| 2025-12 | 86 |
| 2026-01 | 99 |
| 2026-02 | 114 |
| 2026-03 | 118 |
| 2026-04 | 91 |
| 2026-05 | 92 |
Key Biscayne condos near $1.44M, up double digits, are the island's deep, liquid market. The number here is solid.
Gerardo Gonzalez, Licensed Real Estate Agent at Compass
Single-family homes in Key Biscayne, based on about 10 sales over the trailing three months.
Key Biscayne Single-family scoreboard
Single-family homes on Key Biscayne are a tighter, pricier market, with a median near $4,300,000 at about $1,248 per square foot on roughly 10 sales over the trailing three months. The median was up year over year, and days on market ran long, which is normal for a thin island house market where the right buyer takes time to appear. Per-square-foot and comparable sales matter more than the median on this side.
| Period (3-mo end) | Value |
|---|---|
| 2025-12 | $5,242,500 |
| 2026-01 | $3,700,000 |
| 2026-02 | $5,007,500 |
| 2026-03 | $4,160,000 |
| 2026-04 | $4,437,500 |
| 2026-05 | $4,300,000 |
| Segment | Months of supply | Market |
|---|---|---|
| Key Biscayne Single-family | 10.2 | Buyer's market |
Rule of thumb: under 5 months of supply = seller's market, 5 to 7 = balanced, over 7 = buyer's market. Months of supply is derived from active inventory and the trailing 3-month sale pace.
| Period (3-mo end) | Value |
|---|---|
| 2025-12 | 74 |
| 2026-01 | 155 |
| 2026-02 | 182 |
| 2026-03 | 207 |
| 2026-04 | 189 |
| 2026-05 | 189 |
Key Biscayne houses sit near $4.3M and trade slowly. That is a different decision than the island's condo market.
Gerardo Gonzalez, Licensed Real Estate Agent at Compass
Methodology and Sources
- Compiled by: LuxuryDade and Gerardo Gonzalez, Licensed Real Estate Agent at Compass. I assemble and refresh this neighborhood report myself.
- Why split by property type: a neighborhood that mixes single-family estates and condos produces a blended median that fits neither. Each property type is reported separately so its median stays clean.
- Geography: the Key Biscayne neighborhood as defined within the Miami metro area, filtered so same-name neighborhoods in other Florida metros are excluded.
- Window: figures are trailing three-month (rolling) medians, which is the right granularity at the neighborhood level where monthly sale counts are tiny.
- Months of supply: derived from active inventory divided by the trailing 3-month sale pace.
- Missing or thin values: any cell shown as "unavailable" was missing in the underlying data; property types with very few sales are flagged as small-sample and read as directional.
- Data reference: compiled with reference to Redfin (redfin.com/news/data-center). Aggregated market figures, split by property type, not MLS or proprietary brokerage data.
LuxuryDade and Gerardo Gonzalez. "Key Biscayne Home Prices 2026 by Property Type." As of May 2026. https://luxurydade.com/reports/neighborhoods/key-biscayne-home-prices-2026 (verified June 5, 2026).
Related Guides and Data
- South Florida Neighborhood Guides
- South Florida Housing Market Data (full dashboard)
- All South Florida neighborhood data
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