20 ISLAND AVE 909, Miami Beach, FL 33139

Parcel: 0232330471130 · Residential · Condominium - Residential · Zoning: 4000

Assessed Value (2025)
$687,344

Property Details

Beds
2
Baths
2
Living Sqft
1,403
Year Built
1962
RESIDENTIAL - TOTAL VALUE : CONDOMINIUM - RESIDENTIAL

Sales History

1
$130,000
1995-06-01
2
$207,000+59%
1999-06-01
3
$700,000+238%
2017-06-30
CHARLES J WALLACE CARLOS MONTERO

Tax Assessment History

$687,344
Assessed (2025)
$779,108
Market Value
$636,622
Taxable Value
$12,961
Annual Tax
2024
$667,973
$820,114
2025
$687,344
$779,108
Assessed Market
View detailed table
YearAssessedMarketTaxableTax
2025 $687,344 $779,108 $636,622 $12,961
2024 $667,973 $820,114 $617,973 $12,581

About 20 ISLAND AVE 909, Miami Beach, FL 33139

20 ISLAND AVE 909, Miami Beach, FL 33139 is a 2-bedroom, 2-bathroom residential - total value : condominium - residential built in 1962 with 1,403 square feet of living space. The property is currently owned by CARLOS MONTERO NELIDA M FERNANDEZ DE MONTERO, 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 2017-06-30 for $700,000, when CHARLES J WALLACE sold to CARLOS MONTERO. The property has appreciated $493,000 (238%) since the prior sale of $207,000 on 1999-06-01. There are 3 recorded sales for this property.

The 2025 assessed value is $687,344 with a market value of $779,108. The assessed value increased 3% from $667,973 in 2024. The property has the following tax exemptions: homestead.

The median household income in this area is $189,605, and the median home value is $1,453,400. The population density is 3,945 people per square mile. 20 ISLAND AVE 909, Miami Beach, FL 33139 is located in Miami Beach, Florida.

Property records, tax assessments, sales history, and ownership information for this Miami Beach property are sourced from miami_dade County public records. The complete ownership history of this property spans from 1995 to 2017, with 3 recorded transactions in the public record. The current assessed value represents 98% of the most recent sale price.

Based on the most recent sale, this property traded at $499 per square foot — a key metric for comparing value across Miami Beach's real estate market..

Current Owner

CARLOS MONTERO NELIDA M FERNANDEZ DE MONTERO
20 ISLAND AVE 909, MIAMI BEACH, FL, 33139
Since: 2026-04-19
View owner profile →

Est. Annual Insurance

$8,648 — $15,921
Flood $400 — $800
Property/Wind $8,248 — $15,121

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$189,605
Median Home Value$1,453,400
Pop. Density3,945/sq mi

Neighborhood 33139

20.8%
Owner-Occ
79.2%
Investor
715
Flips (4yr)
12,810
New Biz (3yr)
Distress Risk
MODERATE
31
View full risk analysis →
Zoom in to see property sales