Price Reduced14
$3,490,000
3 bd · 3 ba · 2,840 sqft
430 Grand Bay Dr 708, Key Biscayne, FL
Joan Mc Caughan · Coldwell Banker Realty

No listing photos
4
Beds
4
Baths
3,290
Sqft
1953
Year built
Range $4,212,735 – $5,584,324 · as of April 23, 2026
ATTOM automated valuation model · 52 published estimates over 6.3 years · shaded band is the model's own published low-to-high range
Highest reading $5,584,058 in May 2024; lowest $1,332,556 in April 2020. The vertical scale starts at the series' own low, not at zero — it is drawn to show movement, not absolute size.
$979,706
Estimated monthly payment
$31,420/mo
Loan amount $3,918,824. Estimate only — your actual rate and payment depend on credit, location, and lender.
2025 roll
School ratings (A+ to F) from HJN community data.
St Christophers
PK-6 · Montessori
215 students · 24.4:1 student–teacher
Key Biscayne K-8 Center
PK-5 · Regular · Dade County School District
884 students · 18.0:1 student–teacher
St Agnes Academy
PK-8 · Regular
434 students · 13.4:1 student–teacher
Key Biscayne Presbyterian School
PK-1 · Regular
29 students · 6.6:1 student–teacher
Mast Academy
6-12 · Regular · Dade County School District
1,571 students · 20.4:1 student–teacher
Immaculata-la Salle High School
9-12 · Regular
876 students · 12.1:1 student–teacher
La Prima Casa Montessori
PK-KG · Montessori
2 students · 1.0:1 student–teacher
Fisher Island Day School
PK-8 · Regular
126 students · 10.2:1 student–teacher
Within 2 miles of this home: 15 restaurants and cafés, 1 grocery store, 11 parks and green spaces, and 15+ transit stops.
Place data from OpenStreetMap.
Craft Key Biscayne
American restaurant · Crandon Boulevard
Novecento
Argentinian restaurant · Crandon Boulevard
Narbona
Crandon Boulevard
Origin Asian Bistro and Sushi
Starbucks
Crandon Boulevard
Subway
Crandon Boulevard
Domino's
Crandon Boulevard
Pita Pockets KB
Lebanese restaurant · Crandon Boulevard
Winn-Dixie
Crandon Boulevard
Village Green
Key Biscayne Village Green Playgound
Paradise Park
Crandon Boulevard
Crandon Park Beach
Hampton Park
Lake Daniela
Harbor Park
Harbor Drive
Mangrove Wetlands
Crandon Boulevard & Heather Drive
Crandon Boulevard & Sonesta Drive
Crandon Boulevard & Grand Bay Drive
Crandon Boulevard & McIntire Street
Crandon Boulevard & Harbor Drive
Crandon Boulevard & East Enid Drive
Crandon Boulevard & West Enid Drive
Crandon Boulevard & Ocean Lane Drive
BeachesMLS
MIAMI REALTORS MLSSome properties which appear for sale on this web site may subsequently have sold or may no longer be available.
Price Reduced14
$3,490,000
3 bd · 3 ba · 2,840 sqft
430 Grand Bay Dr 708, Key Biscayne, FL
Joan Mc Caughan · Coldwell Banker Realty
Price Reduced64$4,899,000
5 bd · 6 ba · 4,220 sqft
24 Grand Bay Estates Circle, Key Biscayne, FL
Anthony D Vlahovic · Engel & Voelkers Vero Beach
36$3,950,000
4 bd · 5 ba · 3,250 sqft
445 Grand Bay Dr 104, Key Biscayne, FL
Cristina Diez · Compass Florida, LLC.
Price Reduced37$5,100,000
5 bd · 5 ba · 3,535 sqft
797 Glenridge Rd, Key Biscayne, FL
Camila Freytes De Marotta · Swann Realty Partners, LLC.
39$3,975,000
3 bd · 5 ba · 3,093 sqft
781 Crandon Blvd 401, Key Biscayne, FL
Brigitte Nachtigall · One Sotheby's International Realty
28$3,975,000
3 bd · 5 ba · 3,186 sqft
Address withheld · Key Biscayne, FL
Ana Rodrigues Da Cruz · Coldwell Banker Realty




