37 Card Sound Rd is a 5,264 square foot house on a 0.64 acre lot with 4 bedrooms and 5.5 bathrooms. - it last sold on January 27, 1997 for $3,525,000. Based on Redfin's Key Largo data, we estimate the home's value is $10,958,365.
Single-familyProperty Type
1991Year Built
0.64 acresLot Size
$2,082Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$10,958,365
$7.4M since sold in January 1997$2.2M since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 568.3% higher than the average sale price ($1.64M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
IS
Improved Subdivision District
The purpose of the IS district is to accommodate the legally vested residential development rights of the owners of lots in subdivisions that were lawfully established and improved prior to the adoption of this LDC. For the purpose of this section, improved lots are those that are served by a dedicated and accepted existing road of porous or nonporous material, that have an approved potable water supply, and that have sufficient uplands to accommodate the proposed use in accordance with the required setbacks. This district is not intended to be used for new land use districts of this classification within the county.
Permitted uses
Include but are not limited to:
Housing-Multiple units
Infrastructure
Property details
Interior
Bathroom Information
# of Full Baths: 5
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Good
Floor Construction Type: Concrete
Foundation Type: Concrete
Exterior Wall: Custom
Roof Covering Type: Clay/concrete Tile
Roof Shape Type: Irregular
Building Type: Residential
Pool Information
Pool Type: Concrete
Has Pool
Property Information
Subdivision Name: GRAYVIK EXT 1ST ADD OR #8
Living Sq. Ft: 5,264
Gross Sq. Ft: 20,747
Ground Floor Sq. Ft: 5,264
Building Sq. Ft: 5,264
# of Units: 1
# of Stories: 2
Legal Description: LT 19 FIRST ADDITION TO GRAYVIK EXTENSION OCEAN REEF CLUB PLAT NO 8 KEY LARGO PB6-45 OR500-554 OR829-2426 OR883-1614/1617 OR920-1132/33Q/C OR968-140 OR1010-2429/30 OR1076-2179 OR1117-127 OR1440-824/26 OR1547-1658DC OR1803-291/92Q/C
Parking & Garage Information
Parking Type: Finished Block Garage
Garage/Parking Sq. Ft: 945
Garage / Carport Type: Finished Block
Lot Information
# of Buildings: 1
Land Sq. Ft: 27,675
Legal Lot Number: 19
Municipality Type: ORF
Municipality Name: OCEAN REEF
Acres: 0.6353
Zoning Code: IS
County Use Description: SINGLE FAMILY RES
State Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Waterfront
Financial
Assessor Information
Assessment Year: 2025
Tax District County: OCEAN REEF
Tax Area: N KEY LARGO/OCEAN REEF MUNIC S
Public facts
Beds: 4
Baths: 5.5
Sq. Ft.: 5,264
Stories: 2.0
Lot Size: 0.64 acres
Style: Single Family Residential
Year Built: 1991
Year Renovated: 2005
County: Monroe County
APN: 1259 40 00572222000100
Home facts updated by county records on Jul 10, 2026
Around this home
Schools
Key Largo School
Public PreK-8 • Assigned • 12.5mi
8/10
Coral Shores High School
Public 9-12 • Assigned • 26.9mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
9/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
10/10 Heat Factor
7 days above 106° expected this year, 32 days in 30 years
10/10 Wind Factor
99% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Key Largo, FL • 33037
Average low and high temperatures (°F)
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68
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Sun exposure
In this area, properties receive around 9.4 hours in
June and 7 hours in December, placing it above the
U.S. average for solar exposure.