A striking new construction estate, set for completion early summer 2026, 40 Cardinal Lane offers refined coastal living on an oversized lot and a half in Sunrise Cay. Designed with timeless Palm Beach flair and built to the highest standards, the home seamlessly blends elegance with comfort. A gracious entry leads to a dramatic two-story living room with coffered ceilings and abundant natural light. The main living spaces feature custom millwork, stone flooring, and a fireplace, all opening seamlessly to expansive covered outdoor areas designed for year-round enjoyment. The chef's kitchen is a true centerpiece with dual islands, premium appliances, custom cabinetry, and a bright breakfast room. A pantry, mudroom, and elevator add to the home's thoughtful design. The first-floor primary suite is a private sanctuary with a spa-like bath, dual showers, freestanding soaking tub, inlaid marble flooring, and generous his-and-her closets. A private loggia opens directly to the pool deck. Upstairs, four spacious guest suites with ensuite baths offer comfort and privacy, along with a quiet reading nook and an oversized sun deck capturing sweeping ocean views. Lagoon views from the first floor create a tranquil setting, while the second floor enjoys elevated ocean vistas. Outdoor living is exceptional with a resort-style pool and spa, outdoor kitchen, and multiple covered terraces with cypress ceilings. The backyard features private putting and chipping greens, creating a golfer's retreat. Floating dockage behind the home allows convenient access to both the bay and ocean. Additional highlights include a large finished garage and exceptional craftsmanship throughout.
For sale
$22,775,000
40 Cardinal Ln, Key Largo, FL 33037
5beds
7,392sqft
Single Family Residence
Built in 2026
0.6 Acres Lot
$21,231,700 Zestimate®
$3,081/sqft
$-- HOA
What's special
Private sanctuaryPrivate loggiaOutdoor kitchenPool deckDual islandsAbundant natural lightBright breakfast room
- 83 days |
- 318 |
- 17 |
Zillow last checked:
Listing updated:
Listed by:
Post/ Taylor Group,
Ocean Reef Club Sotheby's International Realty
Source: CLS at Ocean Reef,MLS#: 5002
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 7
- Full bathrooms: 6
- 1/2 bathrooms: 1
Appliances
- Included: Washer, Dryer, Dishwasher, Freezer, Refrigerator, Microwave
- Laundry: Laundry Room
Features
- Windows: Impact Glass
- Number of fireplaces: 1
Interior area
- Total structure area: 7,392
- Total interior livable area: 7,392 sqft
Property
Features
- Stories: 2
- Exterior features: Dock
Lot
- Size: 0.6 Acres
Details
- Parcel number: 00569444000800
- Special conditions: Traditional
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- New construction: No
- Year built: 2026
Community & HOA
Community
- Subdivision: Not Condo or Condo Outside MLS Area
Location
- Region: Key Largo
Financial & listing details
- Price per square foot: $3,081/sqft
- Tax assessed value: $7,709,852
- Annual tax amount: $51,811
- Date on market: 3/27/2026
Estimated market value
$21,231,700
$20.17M - $22.29M
$3,905/mo
Price history
| Date | Event | Price |
|---|---|---|
| 3/27/2026 | Listed for sale | $22,775,000+4%$3,081/sqft |
Source: | ||
| 4/19/2023 | Listing removed | -- |
Source: | ||
| 10/31/2022 | Listed for sale | $21,900,000$2,963/sqft |
Source: | ||
| 9/30/2022 | Listing removed | -- |
Source: | ||
| 12/24/2021 | Listed for sale | $21,900,000+180.8%$2,963/sqft |
Source: | ||
| 9/10/2021 | Sold | $7,800,000-1.3%$1,055/sqft |
Source: | ||
| 6/21/2021 | Pending sale | $7,900,000$1,069/sqft |
Source: | ||
| 4/14/2021 | Listed for sale | $7,900,000$1,069/sqft |
Source: | ||
| 2/25/2021 | Pending sale | $7,900,000$1,069/sqft |
Source: Ocean Reef Club Sotheby's International Realty #1198 Report a problem | ||
| 3/8/2017 | Price change | $7,900,000-11.2%$1,069/sqft |
Source: Russell Post Sotheby's International Realty #1198 Report a problem | ||
| 11/4/2016 | Listed for sale | $8,900,000-28.8%$1,204/sqft |
Source: Russell Post Sotheby's International Realty #1198 Report a problem | ||
| 12/13/2010 | Listing removed | $12,500,000$1,691/sqft |
Source: Russell Post Sotheby's International Realty #8626789 Report a problem | ||
| 12/12/2009 | Listed for sale | $12,500,000$1,691/sqft |
Source: Russell Post Sotheby's International Realty #8626789 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $51,811 +11% | $7,680,759 +10% |
| 2024 | $46,684 +15.5% | $6,982,508 +16.9% |
| 2023 | $40,426 -10.3% | $5,973,223 -11.8% |
| 2022 | $45,072 +42.8% | $6,774,649 +52.7% |
| 2021 | $31,559 +6.9% | $4,436,371 +7.7% |
| 2020 | $29,524 | $4,118,172 +3% |
| 2019 | $29,524 +2.8% | $3,999,913 +6.1% |
| 2018 | $28,729 +2.2% | $3,770,149 +2.1% |
| 2017 | $28,117 +2.2% | $3,694,411 -47.6% |
| 2016 | $27,511 -48% | $7,044,733 +1.2% |
| 2015 | $52,919 | $6,958,516 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 33037
Nearby schools
GreatSchools rating
- 8/10Key Largo SchoolGrades: PK-8Distance: 14.7 mi
- 5/10Coral Shores High SchoolGrades: 9-12Distance: 29.2 mi
A local agent can set up tours, give advice and negotiate with sellers.
- Florida
- Monroe County
- Key Largo
- 33037
- 40 Cardinal Ln







