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430 Grand Bay Dr, Unit 307
+38 more
$3.4M

Grand Bay Tower Unit 307

430 Grand Bay Dr, Unit 307 • Key Biscayne, FL 33149

at Grand Bay Tower

Beds
3
Baths
4
Living Area
2,840 SF
Price / SF
$1,197
HOA / Monthly
$3,118
Days on Market
33

About This Unit

Step off your private elevator into your own foyer and feel instantly at home. This updated, light-filled 3BR + maid's quarters / 4BA offers a wonderfully functional layout - open living and dining area, family room, and a partially open kitchen with snack counter, all flowing to a spacious garden terrace with peaceful green views. Three full ensuite bedrooms. The primary suite is bright and spacious with its own private balcony. Impact windows throughout. Move-in ready. Boutique building. Enjoy Grand Bay's five-star amenities: beach service, pool, fitness center, concierge, valet, tennis and padel courts, and more - all steps from the Ritz-Carlton! Island living at its finest.

Pricing at Grand Bay Tower — $1,197/sqft
Grand Bay Tower Unit 307 is listed at $1,197/sqft.
Building-level comparison data is thin for this bedroom count — see Recent Comparable Sales below.
Based on live MIAMIRE active & closed listings at Grand Bay Tower.
Time on Market — 33 days
Grand Bay Tower Unit 307 has been on the market for 33 days.
Building-level pace data is thin for this bedroom count.
Estimated Monthly Cost
Mortgage (P&I)
$18,463
HOA
$3,118
Property Tax
$2,896
Total / mo
$24,477
Assumes 7.20% rate on 20% down (30-year fixed). Tax effective rate 1.02%. HOA $1.1/sqft · All-in $8.62/sqft / month. Excludes wind / flood / contents insurance — verify your actual rate with a lender.

Schedule your private showing at Grand Bay Tower.

Walk the unit with someone who knows this building inside out. Get pricing history, negotiation strategy, and the things the listing won't tell you.

That's (305) 337-4259 • Available 7 days a week
What to Verify
Flood Zone: This unit is in flood zone AE. High-risk flood zone (Special Flood Hazard Area). Federal flood insurance required for federally-backed mortgages.
Building Age: Built in 1999 (27 years old).
Verify all of the above with the HOA before closing.
Building: Grand Bay Tower
Unit: 307
Year Built: 1999
Stories: 12
City: Key Biscayne
Postal Code: 33149
HOA Fee: $3,118 / Monthly
View: Garden View
Waterfront: Yes
Private Pool: No
Heating: Central
Cooling: Central Air
Days on Market: 33
Listed: March 25, 2026
MLS #: A11989375

Location

Tour with Ricky

Schedule your private showing. Get pricing history, negotiation strategy, and the things the listing won't tell you.

Text or Call (305) 33-RICKY
That's (305) 337-4259
Email About This Unit
Ricky Garcia
Ricky Garcia
Ricky J. Garcia LLC
Licensed with Global Luxury Realty
Listing courtesy of: BHHS EWM Realty
Information provided by Miami Association of Realtors / SEFMLS • Deemed reliable but not guaranteed • MLS #: A11989375 • Updated Apr 27, 2026 • Photos uploaded 32 days ago.