All listings
Active
Active1 / 26
Photo 1 of 26
Waterfront · Condominium
$2,520,000$1,432 / sqft
445 Grand Bay Dr # 418, Key Biscayne FL 33149
Listed
2
Bedrooms
3
Bathrooms
1,760 sqft
Interior
1996
Year built
$2,225 / mo
HOA
Condominium
Type
About this home
Experience refined coastal living in one of Key Biscayne's most prestigious beachfront communities. This turnkey, thoughtfully redesigned 2-bedroom, 2.5-bath residence features bright, open living spaces, a chef's kitchen centered around an oversized island, premium finishes, and timeless design throughout. Designed for both everyday living and effortless entertaining, the spacious floor plan flows seamlessly to a generous covered terrace overlooking lush tropical landscaping. The luxurious primary suite offers a spa-inspired bath and generous custom closet space, while the guest suite provides exceptional comfort and privacy. Grand Bay Residences offers 24-hour concierge, valet, a resort-style pool, fitness center, and exclusive beach service through the Grand Bay Club. Ideally located just moments from the Ritz-Carlton, dining, parks, and marinas, this move-in-ready home perfectly captures the best of the Key Biscayne lifestyle.
Features
- Closet Cabinetry
- Fire Sprinklers
- French Doors
- Pantry
- Other View
Leasing
- Minimum lease
- 180 days
- Leases permitted per year
- 2
- Ok To Lease
- Okay To Lease 1st Year
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 2-bed rentals in Key Biscayne, from 83 active listings; the middle half ask $5,500–$9,500.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.