450 ALTON RD 3201, Miami Beach, FL 33139

450 ALTON RD 3201, Miami Beach, FL 33139 is a 3-bedroom, 3.5-bathroom residential - total value : condominium - residential built in 2005 with 2,145 square feet of living space. The property is currently owned by RONI SEIDERMAN, recorded as of 2026-04-07. The owner appears to be owner-occupied based on the mailing address matching the property address.

The most recent sale was on 2026-03-12 for $4,600,000, when PIANO 32 LLC sold to RONI SEIDERMAN. The property has appreciated $2,250,000 (96%) since the prior sale of $2,350,000 on 2008-07-01. There are 3 recorded sales for this property.

The 2025 assessed value is $2,590,818 with a market value of $2,590,818. The assessed value increased 4% from $2,488,006 in 2024. 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 3201, 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 2005 to 2026, with 3 recorded transactions in the public record.

The current assessed value represents 56% 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 $2145 per square foot — a key metric for comparing value across Miami Beach's real estate market..