400 RIDGEWOOD RD, Key Biscayne, FL 33149

Parcel: 2442320040560 · Residential - Single Family · 1 Unit · Zoning: 0100

Assessed Value (2025)
$3,338,467

Property Details

Beds
4
Baths
4.5
Living Sqft
4,939
Year Built
2018
Lot Sqft
8,979
Stories
3
RESIDENTIAL - SINGLE FAMILY : 1 UNIT

Sales History

1
$1,310,200
2014-07-29
JORGE L BLANCO JRUS BANK NA TRS
2
$1,700,000+30%
2014-12-19
US BANK NA TRS400 RIDGEWOOD LLC
3
$100non-market transfer
2020-11-30
400 RIDGEWOOD LLCSERGIO R GUARDAZZI RIVERO

Tax Assessment History

$3,338,467
Assessed (2025)
$4,203,506
Market Value
$3,287,745
Taxable Value
$66,936
Annual Tax
2024
$3,244,380
$3,954,015
2025
$3,338,467
$4,203,506
Assessed Market
View detailed table
YearAssessedMarketTaxableTax
2025 $3,338,467 $4,203,506 $3,287,745 $66,936
2024 $3,244,380 $3,954,015 $3,194,380 $65,035

About 400 RIDGEWOOD RD, Key Biscayne, FL 33149

400 RIDGEWOOD RD, Key Biscayne, FL 33149 is a 4-bedroom, 4.5-bathroom residential - single family : 1 unit built in 2018 with 4,939 square feet of living space on a 8,979 square foot lot. The property is currently owned by SERGIO R GUARDAZZI RIVERO MARIA F RODRIGUEZ DE GUARDAZZI, recorded as of 2026-04-19. The owner appears to be owner-occupied based on the mailing address matching the property address.

The most recent sale was on 2020-11-30 for $100, when 400 RIDGEWOOD LLC sold to SERGIO R GUARDAZZI RIVERO. The property sold for $1,699,900 less than the prior sale of $1,700,000 on 2014-12-19. There are 3 recorded sales for this property.

The 2025 assessed value is $3,338,467 with a market value of $4,203,506. This breaks down to $2,334,540 for the land and $1,868,966 for the building. The assessed value increased 3% from $3,244,380 in 2024.

The property has the following tax exemptions: homestead. This property is located in FEMA Flood Zone AE, a Special Flood Hazard Area with a 1% annual chance of flooding (100-year floodplain). Flood insurance is typically required by lenders for properties in this zone.

The median household income in this area is $250,001, and the median home value is $2,000,001. The population density is 3,407 people per square mile. 400 RIDGEWOOD RD, Key Biscayne, FL 33149 is located in Key Biscayne, Florida.

Property records, tax assessments, sales history, and ownership information for this Key Biscayne property are sourced from miami_dade County public records. The complete ownership history of this property spans from 2014 to 2020, with 3 recorded transactions in the public record..

Current Owner

SERGIO R GUARDAZZI RIVERO MARIA F RODRIGUEZ DE GUARDAZZI
400 RIDGEWOOD RD, KEY BISCAYNE, FL, 33149
Since: 2026-04-19
View owner profile →

Flood Zone

Zone AE
Special Flood Hazard Area

Est. Annual Insurance

$20,430 — $34,184
Flood $400 — $800
Property/Wind $20,030 — $33,384

Estimate based on FEMA flood zone, property value, and year built. Actual premiums vary based on elevation, mitigation features, roof condition, and insurer. Not a quote.

Neighborhood

Median Income$250,001
Median Home Value$2,000,001
Pop. Density3,407/sq mi

Neighborhood 33149

34.2%
Owner-Occ
65.8%
Investor
119
Flips (4yr)
3,025
New Biz (3yr)
Distress Risk
MODERATE
36
View full risk analysis →
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