Listed by LoKation

Recently sold · Key Biscayne

$1,380,000

151 Crandon Blvd # 122, Key Biscayne FL 33149

Listed by Xcellence · Sold by Avanti Way Realty LLC

Public MIAMI MLS record · deemed reliable but not guaranteed · MiamiCityRealty.com not necessarily a party

Miami · ZIP 33149 · Live MLS

Key Biscayne

Key Biscayne: barrier-island Village of 14K reached by one bridge. Ocean Club, Oceana by Renzo Piano, Grand Bay by Bjarke Ingels, Ritz-Carlton Residences, Mashta Island estates. Top-tier public schools (Key Biscayne K-8, MAST). Cape Florida lighthouse + Crandon Park.

$2.9M

Median price

$1326

Per sq ft

173

Active listings

70 d

Median days on mkt

Price position +289% vs MCR median
⊞See all

Median list price

$2,875,000

For-sale active inventory

Price / sq ft

$1326

Across active listings

Active inventory

173

On the market right now

Median days on market

70

Well-priced units move faster

✦ Computed live from MIAMI MLS active inventory · refreshed every few hours · updated October 21, 2026

Key Biscayne real estate market data, live from MIAMI MLS, updated October 21, 2026
Median list price$2,875,000
Median price per square foot$1326
Active for-sale inventory173
Median days on market70 days
Median asking rent$8,500 / month
Year-over-year price change-52.7%
Homes in a FEMA high-risk flood zone45% of active for-sale homes
Typical home typeCondominium

Market pulse

How Key Biscayne is trading

Median asking price by month listed, plus how active inventory splits — all live from MIAMI MLS active listings (not closed sales).

Median list price, by month listed

12-mo avg
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct

-52.7%

Median list, recent vs. earlier

$2,734,333

12-month average

173

For-sale listings

What's on the market, by price

Share of active for-sale inventory

Under $500K 3% · 6
$500K – $1M 10% · 18
$1M – $3M 39% · 67
$3M – $10M 34% · 59
$10M+ 13% · 23

Recently sold in Key Biscayne (12)

Public MIAMI MLS closings
Sold $1,380,000 151 Crandon Blvd # 122, Key Biscayne FL 33149 Sold Oct 14, 2026 Listed by Xcellence · Sold by Avanti Way Realty LLC Sold $3,400,000 791 Crandon Blvd # 603, Key Biscayne FL 33149 Sold Sep 27, 2026 Listed by One Sotheby's International Realty · Sold by Coldwell Banker Realty Sold $1,600,000 425 Grapetree Dr # 211, Key Biscayne FL 33149 Sold Sep 24, 2026 Listed by Beycome of Florida LLC · Sold by Xcellence Sold $1,700,000 155 Ocean Lane Dr # 300, Key Biscayne FL 33149 Sold Sep 23, 2026 Listed by One Sotheby's International Realty · Sold by Allte Realty Sold $2,220,000 881 Ocean Dr # 7D, Key Biscayne FL 33149 Sold Sep 3, 2026 Listed by BHHS EWM Realty · Sold by One Sotheby's International Realty Sold $1,450,000 607 Ocean Dr # 3K, Key Biscayne FL 33149 Sold Aug 30, 2026 Listed by One Sotheby's International Realty · Sold by One Sotheby's International Realty Sold $1,200,000 201 Crandon Blvd # 227, Key Biscayne FL 33149 Sold Aug 26, 2026 Listed by BHHS EWM Realty · Sold by Compass Florida, LLC Sold $10,850,000 111 Reef Ln, Key Biscayne FL 33149 Sold Aug 6, 2026 Listed by Compass Florida, LLC · Sold by Coldwell Banker Realty Sold $14,000,000 591 N Mashta Dr, Key Biscayne FL 33149 Sold Aug 2, 2026 Listed by EXP Realty LLC · Sold by BHHS EWM Realty Sold $1,870,000 200 Ocean Lane Dr # 1102, Key Biscayne FL 33149 Sold Jul 16, 2026 Listed by One Sotheby's International Realty · Sold by BBM Realty LLC Sold $3,950,000 791 Crandon Blvd # 405, Key Biscayne FL 33149 Sold Jul 16, 2026 Listed by One Sotheby's International Realty · Sold by Compass Florida, LLC Sold $1,330,000 141 Crandon Blvd # 331, Key Biscayne FL 33149 Sold Jul 15, 2026 Listed by Coldwell Banker Realty · Sold by Cervera Real Estate Inc.

Closed-sale data from the MIAMI MLS · deemed reliable but not guaranteed. MiamiCityRealty.com was not necessarily involved in these transactions; the listing and selling brokerages credited above are the parties to each sale.

The insider read

Why Key Biscayne is different

Key Biscayne is a barrier island reached by one bridge — the Rickenbacker Causeway from mainland Miami. The Village of Key Biscayne, incorporated in 1991, used the autonomy to cap growth: strict zoning, no commercial high-rises, no new tower construction beyond what was already approved, no chain stores on Crandon Boulevard (the one main street). The result is an island town of ~14,000 residents that physically looks like a Florida fishing village from the 1960s — until you realize the houses are $5-50M and the gated condo enclaves rival anything in South Florida.

What that means for buyers: Key Biscayne trades on scarcity. The island will not grow. Inventory is tightly held — average days-on-market for the premier waterfront estates is among the lowest in the County, and ten-year owners are common. Longtime owners tend to pass property down rather than sell. New buyers often wait two-to-three years for the right house to come available.

The Key Biscayne markets

  • Waterfront estates — bayfront + oceanfront + canal-front single-family on the north end, south end, and Mashta Island. $8M-$50M+. The deepest pockets on the island.
  • Off-water estates — large lots on tree-lined streets in the heart of the island. $3M-$10M.
  • Ocean Club — gated 7-tower condo enclave on the Atlantic side. Private beach, club, amenities. $2M-$12M.
  • Grand Bay Residences + Grand Bay Tower — Bjarke Ingels Group (BIG) designed twin towers. $3M-$15M.
  • Oceana Key Biscayne — Renzo Piano-designed, Atlantic oceanfront. $4M-$20M+.
  • Ritz-Carlton Key Biscayne + Residences — branded resort + condo combination. $1.5M-$10M.
  • L’Atelier Key Biscayne — boutique 25-residence luxury tower. $2M-$8M.
  • Older 1970s-1990s condos — the value tier. Casa del Mar, Towers of Key Biscayne, Sands of Key Biscayne. $500K-$2M.
  • Village townhomes — limited inventory in a handful of townhome communities. $1.5M-$4M.
  • Rentals — relatively shallow pool because owners hold. Furnished oceanfront 3BR runs $10-25K/mo; trophy estates $30-80K/mo.

Live Key Biscayne inventory by market tier

Every listing priced in dollars AND Bitcoin. Tier filter computed from MLS data — lot size, sqft, bedrooms/baths, waterfront status, and the gated-community detection that flags Ocean Club + Grand Bay as condo estates automatically.

🏝️ Key Biscayne Estates — bayfront + oceanfront + Mashta Island

Waterfront single-family. 7,500+ sqft OR water-direct lot. Generational waterfront compounds, plus the trophy mainland-billionaire weekend homes.

🏛️ Key Biscayne Mansions

5,000-7,500 sqft single-family — large off-water lots, tree-canopied streets, the heart-of-the-island estate belt.

🏡 Key Biscayne Homes

3-5 BR single-family. The Village's single-family tier — walk-to-school inventory.

🌃 Key Biscayne Condo Estates — Ocean Club whole-floor + top Oceana

4,500+ sqft units. Ocean Club whole-floor residences, Oceana Renzo Piano units, Grand Bay top floors.

🌇 Key Biscayne Penthouses

2,500-4,500 sqft top-floor units. The signature unit of every major Key Biscayne tower.

🏢 Luxury Key Biscayne Condos

1,500-2,500 sqft, 2-3 BR. Ocean Club B-lines, Ritz-Carlton Residences, established luxury buildings.

🏬 Key Biscayne Starter Condos

1BR + studios in the older 1970s-1990s buildings. Entry-tier Key Biscayne ownership — your foot in the door before the bigger trade.

🏘️ Key Biscayne Townhouses

Limited inventory — the Village's handful of townhome communities.

Key Biscayne rentals — the patient inventory

The rental pool here is shallow because Key Biscayne owners tend to hold. When rentals do come available, they often clear at the top of their tier within days. The seasonal-furnished market is its own world: international relocators often rent furnished for a year while shopping for the right house — and frequently end up buying the rental.

🏝️ Key Biscayne Estate Rentals

$20K+/mo OR 4,000+ sqft. Waterfront estate rentals + Ocean Club whole-floor units — almost always furnished, often seasonal.

🌃 Key Biscayne Premium Rentals

$8K-$20K/mo. Furnished 3BR oceanfront units in Ocean Club, Oceana, Ritz-Carlton Residences — the seasonal-furnished landing tier.

🏢 Key Biscayne Luxury Rentals

$3K-$8K/mo. 2-3BR units — the established Key Biscayne rental tier.

🏬 Key Biscayne Starter Rentals

Under $3K/mo. Smaller units, often in the older condo cluster — the first-Miami-apartment tier.

The buildings worth knowing

Ocean Club — Key Biscayne’s gated luxury enclave

791 Crandon Boulevard. The Village’s premier gated condo community — 7 oceanfront residential towers (Ocean Tower 1, 2; Lake Tower 1, 2, 3; Resort Tower 1, 2) plus the Ocean Club Beach + Tennis Club. Private beach, restaurants, pools, fitness center, tennis. Originally developed by the Fontainebleau organization in the 1990s. $2M-$12M. The most active condo trading on the island.

Oceana Key Biscayne — Renzo Piano

360 Ocean Drive. 154 residences across two 12-story buildings by Pritzker laureate Renzo Piano (his first U.S. residential). Completed 2016. Direct Atlantic oceanfront. Wraparound terraces; Piano’s signature filtered light. $4M-$20M+. The architecturally defining Key Biscayne building.

Grand Bay Residences + Grand Bay Tower — Bjarke Ingels

770 Crandon Boulevard. The twin BIG (Bjarke Ingels Group) towers — twisted form, the most photographed silhouette in Key Biscayne. 96 residences. Bayfront, not oceanfront. $3M-$15M.

Ritz-Carlton Key Biscayne + Residences

455 Grand Bay Drive. Brand-managed resort + condo combination — the convenience of full hotel services for residential owners. $1.5M-$10M. The most-rented luxury condo line on the island (less HOA pushback against short-term rental than Ocean Club).

L’Atelier Key Biscayne

1300 Crandon Boulevard. Boutique 25-residence luxury tower by the L’Atelier team that later built L’Atelier Residences Miami Beach. Italian-design interiors. $2M-$8M.

The estate belt — Mashta Island, North Bay Road, South Mashta Drive

The waterfront single-family addresses. Mashta Island is a small island within Key Biscayne — accessed by its own bridge — with about 50 estates, $8-50M+. North Bay Road area + South Mashta Drive hold the open-bay-front estates. The “Royal Palm Avenue” and “Harbor Drive” addresses are heart-of-island, off-water but on the prestigious tree-lined streets.

Living on the island

Schools

  • Key Biscayne K-8 Center — the in-district public, A-rated, the island’s most sought-after school.
  • MAST Academy (Maritime & Science Technology) — magnet 9-12 on adjacent Virginia Key, top-rated public high school in Miami-Dade. Marine-science specialty, IB program. Many Key Biscayne K-8 students continue here.
  • St. Agnes Academy — Catholic Pre-K-8 on the island.
  • Carrollton School of the Sacred Heart (Coconut Grove, 15 min) — Catholic all-girls Pre-K-12.
  • Ransom Everglades (Coconut Grove, 15 min) — independent 6-12, a highest-tier college-prep option.
  • Gulliver Prep (Coral Gables, 25 min) — independent Pre-K-12.

The food

Small, well-loved, mostly family-owned. Boater’s Grill at the Cape Florida Lighthouse — waterfront seafood, the most-Instagrammed Key Biscayne meal. Cioppino at Ritz-Carlton — Italian, oceanfront. Lightkeepers — also at the Ritz. Rusty Pelican (on the causeway in from Brickell, technically Virginia Key) — the cause-celebre Miami-skyline-from-across-the-bay view restaurant. Cantina Beach — Mexican at Ritz. Le Pizzaiolo — neighborhood pizza institution. Capri Restaurant + Pizzeria — family Italian since 1981. Caffe Vialetto — the social-club espresso spot. Oasis — Cuban breakfast and the Cuban-coffee window everyone uses. Costa Med Bistro — Mediterranean, casual.

Parks & beaches

  • Cape Florida State Park — the south end of the island. The Cape Florida Lighthouse (1825, the oldest standing structure in Miami-Dade), beach, kayak/paddleboard rental, Boater’s Grill. $8 vehicle entrance fee.
  • Crandon Park — the north end. 808 acres, two-mile beach, the Crandon Golf Course (public, championship), Crandon Tennis Center (former Miami Open site), Crandon Marina, amenities including a small zoo + carousel.
  • Village Green Park — the village’s center park, kids’ playground, dog area.
  • Calusa Park — tennis, basketball, soccer fields.
  • Beach Park — the Village’s small mid-island beach access.

Getting around

  • Rickenbacker Causeway — the only road on/off the island. $2.25 toll inbound. Connects to Brickell (10 min), Downtown (12 min), MIA (15-25 min depending on traffic).
  • Crandon Boulevard — the island’s one main street. Runs the length of the island. One stoplight.
  • Bike-friendly — the island is small (1.25 miles wide, 4.5 miles long), most residents bike + golf-cart locally.
  • Crandon Marina — full-service deep-water marina at north end; many residents keep boats here.
  • Hurricane planning — one bridge in/out means the Village takes evacuations seriously. Most residents prepare aggressively. Insurance + storm shutters + reinforced glass standard at the luxury price point.

Key Biscayne 2026 market: what we’re watching

  1. Generational transitions. Many Key Biscayne estates were acquired in the 1980s-1990s and have been long held. Owners are now making sell-or-keep decisions. Watch for estate listings from long-held addresses — when they hit, they tend to clear at premium.
  2. Insurance + hurricane risk pricing. Florida windstorm + flood insurance pressures hit barrier islands first. Premiums for Key Biscayne waterfront estates can clear $50-200K annually. Pricing is starting to factor this; pull insurance quotes before any offer.
  3. The Renzo Piano effect. Oceana resales have outperformed broader Key Biscayne by 10-20% since 2018. The Piano-design premium is real. The Bjarke Ingels twin towers showing similar pattern. Architecturally branded buildings outperform the generic luxury.
  4. The Crandon Marina + park investment. Miami-Dade’s planned 2025-2027 reinvestment in Crandon Marina + Crandon Park amenities lifts the north-end luxury cluster. Watch for the construction-noise discount + post-reno premium.
  5. School-anchored demand. Key Biscayne K-8 Center has waitlists; in-district priority drives demand for off-water mansion + townhouse inventory near the school. Less of a factor at the waterfront-estate tier.

Frequently asked questions

What’s it actually like living on an island connected by one bridge?

Quieter than mainland Miami. Slower. More you-know-your-neighbors. The bridge is the friction that keeps tourist density low and the Village character intact. Traffic on the causeway can be heavy at rush hour (especially the morning inbound), and major events at Marlins Park or the AAA Arena can back up the outbound. Most residents organize their schedules around the causeway pattern. Hurricane evacuations are taken seriously — when the order comes, the island clears in 12-18 hours.

How does Key Biscayne compare to Coconut Grove?

Both are tree-canopied and waterfront-oriented. Differences: Key Biscayne is an island Village of 14K residents with strict growth caps, top-tier public schools (K-8 + MAST), and genuinely walkable + bikeable scale. Coconut Grove is a larger mainland neighborhood with more residential diversity (estates, lofts, condos, single-family), the top private schools cluster (Ransom Everglades, Carrollton, St. Stephen’s), better dining + nightlife, more walking-to-restaurants density. Key Biscayne often wins on walkable-to-school scale; Grove wins on dining + private-school proximity + social density.

Are there any new construction towers planned?

Effectively no. The Village zoning caps tower height + new commercial density. Existing tower projects (Oceana 2016, Grand Bay 2014, L’Atelier 2017, Ritz-Carlton 2008) were grandfathered or approved before the current zoning. New residential is almost entirely tear-down-rebuild single-family on existing lots. The result: a hard supply ceiling that keeps Key Biscayne scarcity intact.

What schools serve Key Biscayne?

Public: Key Biscayne K-8 Center (in-district, A-rated, waitlists for non-district transfers), MAST Academy magnet 9-12 on adjacent Virginia Key (top-rated Miami-Dade high). Private: St. Agnes Academy (Catholic K-8, on the island), Carrollton School of the Sacred Heart (Catholic all-girls Pre-K-12 in Coconut Grove, 15 min), Ransom Everglades (independent 6-12 in Coconut Grove, 15 min), Gulliver Prep (Coral Gables, 25 min). Most Key Biscayne K-8 graduates continue to MAST, Carrollton, Ransom, or Gulliver.

Is hurricane risk a deal-breaker?

It’s a real factor that buyers price in, not a deal-breaker. Hurricane Andrew (1992) hit Key Biscayne hard; building codes since then are dramatically stricter (impact-resistant glass, elevated mechanicals, reinforced roofs). Insurance premiums on waterfront estates can clear $50-200K annually. Most residents do their hurricane prep aggressively. The trade-off is real: barrier-island living means accepting elevated weather exposure for the scarcity + lifestyle.

Can I do short-term rentals on Key Biscayne?

Mostly no. The Village strictly limits short-term rentals; most condo HOAs (especially Ocean Club) enforce 6-month minimum leases. The Ritz-Carlton Residences are an exception because of the hotel-managed model. Before any Key Biscayne investment based on short-term rental income, verify with the Village’s code office + the building’s HOA.

How does Key Biscayne compare to Fisher Island?

Both are private-feeling island enclaves. Fisher Island is fully private (ferry-only access, ~700 residences), no public access, the most exclusive Miami address — and lifestyle ultra-controlled. Key Biscayne is a public Village (anyone can drive over the causeway), 14,000 residents, far more diversity of housing stock and lifestyle, public-accessible schools, and a broader range of price points alongside the ultra-HNWI. Many buyers pick Key Biscayne over Fisher Island specifically for the normal-feeling town character rather than a private gated bubble.

Can I buy a Key Biscayne property with Bitcoin?

Yes. Key Biscayne’s international + crypto-friendly buyer pool has driven multiple BTC closings — title companies that work the island are experienced with the mechanics. We display BTC pricing for transparency; closing happens via specialized title companies that handle the conversion + reporting.

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Condo buildings in Key Biscayne

All 18 →

On the market

In Key Biscayne right now

All Key Biscayne listings →
New

Key Biscayne

$852,000

177 OCEAN LANE Drive # 402, Key Biscayne FL 33149

1 bd 1.5 ba 840 sqft

Listing courtesy of LoKation

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New

Key Biscayne

$1,410,000

177 Ocean Lane Dr # 405, Key Biscayne FL 33149

2 bd 2 ba 1,260 sqft

Listing courtesy of IPM Worldwide Properties

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New

Key Biscayne

$9,950,000

360 Harbor Ln, Key Biscayne FL 33149

6 bd 5.5 ba 4,341 sqft

Listing courtesy of Coldwell Banker Realty

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New

Key Biscayne

$2,850,000

765 Crandon Blvd # 310, Key Biscayne FL 33149

3 bd 3 ba 2,602 sqft

Listing courtesy of Serhant

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New

Key Biscayne

$7,599,000

315 Cypress Dr, Key Biscayne FL 33149

6 bd 7 ba 3,980 sqft

Listing courtesy of Lifestyle International Realty

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New

Key Biscayne

$1,075,000

201 Crandon Blvd # 605, Key Biscayne FL 33149

1 bd 2 ba 1,059 sqft

Listing courtesy of CRANELUXE

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Key Biscayne

$1,290,000

155 Ocean Lane Dr # 1215, Key Biscayne FL 33149

2 bd 2 ba 1,350 sqft

Listing courtesy of Coldwell Banker Realty

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Key Biscayne

$799,500

155 Ocean Lane Dr # 103, Key Biscayne FL 33149

1 bd 1.5 ba 895 sqft

Listing courtesy of Cachon Realty Group. LLC

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Down the block

What the numbers say about living in Key Biscayne

Each figure below is live from MIAMI MLS active inventory + FEMA flood data — nothing illustrative.

🌊

Flood reality

About 45% of active for-sale homes here are mapped in a FEMA Special Flood Hazard Area. Confirm a specific home's zone, elevation and insurance before you buy.

💵

What you'll pay

Median asking price is $2,875,000 (about $1326/sq ft) — +289% vs MCR median.

🏠

What's available

Condominium is the most common home type among the 173 homes for sale right now.

🔑

Renting here

Median asking rent is $8,500/month across 88 active rentals — useful if you're weighing rent vs. buy.

Your Key Biscayne specialist

RP

Robert Paulson

Founding Broker · BK3286709

Tell me what you're after in Key Biscayne — budget, building, must-haves — and I'll match you with the specialist who works that block.

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MiamiCityRealty.com LLC · 1000 5th St Ste 200, Miami Beach, FL 33139 · (305) 547-8912 · Robert Paulson, Broker · FL Lic. BK3286709. All MCR agents are REALTORS®, members of the National Association of REALTORS®. Equal Housing Opportunity. Median price, price-per-foot, inventory, days-on-market, the price trend and inventory mix are computed live from MIAMI MLS active for-sale inventory (not closed sales); the flood figure is from FEMA's National Flood Hazard Layer. All deemed reliable but not guaranteed and never an appraisal. Lifestyle and "best for" labels describe places, amenities and inventory — not people. In accordance with Florida §475.

Key Biscayne · $2.9M median

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