3291 SW 21 ST, Miami, FL 33145

3291 SW 21 ST, Miami, FL 33145 is a 2-bedroom, 1-bathroom residential - single family : 1 unit built in 1950 with 1,531 square feet of living space on a 6,000 square foot lot. The property is currently owned by DANIEL W ALONSO JR &W MARLENNE ALONSO, 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 2005-02-01 for $350,000. The property has appreciated $100,000 (40%) since the prior sale of $250,000 on 2004-06-01. There are 3 recorded sales for this property.

The 2025 assessed value is $195,739 with a market value of $570,514. This breaks down to $426,000 for the land and $144,514 for the building. The assessed value increased 2% from $190,979 in 2024.

The property has the following tax exemptions: homestead. This property is located in FEMA Flood Zone X, which indicates minimal flood risk. Flood insurance is typically not required for properties in Zone X.

The median household income in this area is $77,772, and the median home value is $545,400. The population density is 10,553 people per square mile. 3291 SW 21 ST, Miami, FL 33145 is located in Miami, Florida.

Property records, tax assessments, sales history, and ownership information for this Miami property are sourced from miami_dade County public records. The complete ownership history of this property spans from 1975 to 2005, 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 $229 per square foot — a key metric for comparing value across Miami's real estate market..