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Single Family Residence
$4,899,000$1,161 / sqft
24 Grand Bay Estates Circle, Key Biscayne FL 33149
Listed
5
Bedrooms
4,220 sqft
Interior
1999
Year built
$1,509 / mo
HOA
Single Family Residence
Type
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
- Bar
- Built-in Features
- Closet Cabinetry
- Cooking Island
- Roman Tub
- Split Bedroom
- Volume Ceilings
- Walk-In Closet(s)
- Balcony
- Exterior Lights
- Open Balcony
Run the numbers
We fill in the price and the building's HOA dues. That leaves tax, insurance and maintenance — they depend on your exemptions, your insurer and the unit, so we don't guess them. Rent starts from what comparable units are asking nearby. Vacancy and the loan terms below start at common defaults; change them.
Median asking rent for 5-bed rentals in Key Biscayne, from 8 active listings; the middle half ask $22,000–$65,000.That is what landlords ask, not what units let for — edit it if you know better.
Our default, not a market figure
From the listing
Depends on assessed value & exemptions
Varies widely by building
Repairs, turnover, management
Cap rate
Cash-on-cash
Monthly cash flow
Net operating income
Enter property tax, insurance, maintenance to see the returns. A cap rate calculated without every cost overstates the deal — often by half — so we don't show a partial one.
Illustration only — not a loan offer, quote, or investment advice. We are not a lender and neither offer nor arrange financing. The loan fields start at 20% down over 30 years at 6.5% (rates as of July 2026); that is a nominal rate for illustration, not an APR, and your actual terms will differ. Cap rate is unlevered; cash-on-cash counts the down payment as invested capital and excludes closing costs.
Listing data from the MIAMI Association of REALTORS® (MIAMIRE) IDX program. Information deemed reliable but not guaranteed. Demo data shown for layout purposes.