Is Key Biscayne, FL 33149 a buyer’s or seller’s market?

The Key Biscayne housing market right now

In the three months ending August 31, 2026, 9% of homes in Key Biscayne, FL 33149 sold above their list price, the typical home went under contract in 75 days and there were 5.6 months of supply. Four to six months of supply is a balanced market, where pricing and condition decide how much room there is to negotiate. That’s based on 78 home sales.

Compared with the same period a year earlier, the share selling over asking rose from 2%, homes sold faster (100 days then) and the median sale price rose 5% to $1,524,340. Overall, Key Biscayne is more competitive than a year ago, so tougher for buyers.

Within Miami-Dade County, homes here sell faster than in 63% of the county’s ZIP codes, and sell more often over asking than in 57%. On our competition score, Key Biscayne ranks #589 of 796 FL ZIP codes with enough sales (score 13 out of 100).

Nearby, buyers who want less competition could look at Miami 33136 (0% sold over asking) or Miami 33128 (0% sold over asking), while Miami 33184 (26% sold over asking) and Opa Locka 33055 (24% sold over asking) are even more competitive.