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
Est.:
Single Family Residence
Built in 2026
0.6 Acres Lot
$21,546,300 Zestimate®
$3,081/sqft
$-- HOA
What's special
Private sanctuaryPrivate loggiaOutdoor kitchenPool deckDual islandsAbundant natural lightBright breakfast room
- 26 days |
- 793 |
- 19 |
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Post / Taylor Group,
Ocean Reef Club Sotheby's International Realty
Source: CLS at Ocean Reef,MLS#: 5002
Tour with a local agent
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
$21,546,300
$20.47M - $22.62M
$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
$128,245/mo
Principal & interest
$112682
Property taxes
$15563
More affordability tools
Climate risks
Neighborhood: 33037
Nearby schools
GreatSchools rating
- 8/10Key Largo SchoolGrades: PK-8Distance: 14.7 mi
- 4/10Coral 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







