3309 WILLIAM AVE, Miami, FL 33133

3309 WILLIAM AVE, Miami, FL 33133 is a 2-bedroom, 1-bathroom residential - single family : 1 unit built in 1949 with 910 square feet of living space on a 4,650 square foot lot. The property is currently owned by OSIANA INVESTMENTS LLC, recorded as of 2026-03-29. The mailing address differs from the property address, suggesting this may be an investment property or rental.

The most recent sale was on 2015-07-15 for $145,000, when CASELK LLC sold to OSIANA INVESTMENTS LLC. The property has appreciated $35,000 (32%) since the prior sale of $110,000 on 2015-07-15. There are 3 recorded sales for this property.

The 2025 assessed value is $439,063 with a market value of $646,478. This breaks down to $558,000 for the land and $88,478 for the building. The assessed value increased 10% from $398,879 in 2024.

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 $60,461, and the median home value is $790,700.

The population density is 7,714 people per square mile. 3309 WILLIAM AVE, Miami, FL 33133 is located in Miami, Florida. Property records, tax assessments, sales history, and ownership information for this Miami property are available through Miami-Dade County public records.

The complete ownership history of this property spans from 2010 to 2015, with 3 recorded transactions in the public record. The current assessed value represents 303% of the most recent sale price. This high ratio could indicate the property was purchased below market value — a potential sign of a distressed sale or off-market deal.

Based on the most recent sale, this property traded at $159 per square foot — a key metric for comparing value across Miami's real estate market..