450 ALTON RD 1901, Miami Beach, FL 33139

450 ALTON RD 1901, Miami Beach, FL 33139 is a 4-bedroom, 4.5-bathroom residential - total value : condominium - residential built in 2005 with 4,078 square feet of living space. The property is currently owned by MICHAEL J MAROCCO, recorded as of 2026-03-29. The owner appears to be owner-occupied based on the mailing address matching the property address.

The most recent sale was on 2015-10-14 for $8,400,000, when STEFFEN TH GASSMANN sold to MICHAEL J MAROCCO. The property has appreciated $6,910,000 (464%) since the prior sale of $1,490,000 on 2010-06-29. There are 3 recorded sales for this property.

The 2025 assessed value is $3,900,150 with a market value of $4,922,862. The assessed value increased 3% from $3,790,234 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 $87,115, and the median home value is $2,000,001.

The population density is 7,330 people per square mile. 450 ALTON RD 1901, 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 2009 to 2015, with 3 recorded transactions in the public record. The current assessed value represents 46% of the most recent sale price. This low ratio may suggest the property is under-assessed relative to market value, common after recent improvements or a competitive purchase.

Based on the most recent sale, this property traded at $2060 per square foot — a key metric for comparing value across Miami Beach's real estate market..