24 Grand Bay Estates Circle

Key Biscayne, FL 33149

$4,950,000

$1,173/ft²

5Beds

5.5Baths

4,220Sq ft

1999Year built

Single-family homeType

About this home

Experience island living at its best in this renovated 4,220SF estate within Grand Bay Estates, Key Biscayne's only guard-gated single-family enclave! This 5BR/5.5BA home features a 2021 roof, new tankless water heaters, new AC units and full storm protection! The kitchen shines with Quartz counters & Sub-Zero, Wolf, & Miele appliances, plus a dual-zone Sub-Zero wine fridge. The versatile layout includes all en-suite bedrooms, staff quarters, & private in-law suite with its own entrance. A rare find for Key Biscayne is the climate controlled 2-car garage plus golf cart garage. The backyard oasis offers a heated saltwater pool, summer kitchen & retractable awning, perfect for entertaining! HOA covers lawn care, 24hr security, pool maintenance, pest control, plus private park & playground! For the ultimate experience in luxury and privacy, look no further!

Features

Private pool

Property details

Listing

MLS #: B26004621
Status: For sale
Listed on: Mar 20, 2026
Days on market: 143 days
Listing data updated: Aug 5, 2026

Interior

Beds: 5
Baths: 5.5
Living area: 4,220 ft²
Price per ft²: $1,173/ft²

Building & community

Type: Single-family home
Year built: 1999
HOA fee: $1,509/mo
County: Miami-Dade

Lot & exterior

Lot size: 6,534 ft²
Private pool: Yes

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest): $25,030
Property taxes (est.): $4,538
Home insurance (est.): $600
Flood insurance (est.): —
HOA fee: $1,509

Estimated total$31,677*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?