1047 MARINER DR, Key Biscayne, FL 33149

1047 MARINER DR, Key Biscayne, FL 33149 is a 4-bedroom, 2.5-bathroom residential - single family : 1 unit built in 1978 with 3,111 square feet of living space on a 17,483 square foot lot. The property is currently owned by KB MARINER 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 2022-01-26 for $7,950,000, when WILLIAM D ROHRER sold to KB MARINER LLC. The property has appreciated $5,981,400 (304%) since the prior sale of $1,968,600 on 2003-10-01. There are 3 recorded sales for this property.

The 2025 assessed value is $8,348,602 with a market value of $8,980,498. This breaks down to $8,304,425 for the land and $676,073 for the building. The assessed value increased 10% from $7,589,639 in 2024.

The median household income in this area is $250,001, and the median home value is $2,000,001. The population density is 3,407 people per square mile. There are active mortgage liens totaling $4,911,050 recorded against this property.

1047 MARINER DR, Key Biscayne, FL 33149 is located in Key Biscayne, Florida. Property records, tax assessments, sales history, and ownership information for this Key Biscayne property are sourced from miami_dade County public records. The complete ownership history of this property spans from 1996 to 2022, with 3 recorded transactions in the public record.

The current assessed value represents 105% of the most recent sale price. Based on the most recent sale, this property traded at $2555 per square foot — a key metric for comparing value across Key Biscayne's real estate market..