About This Home

This 3-bedroom, 4-bathroom condo at 430 Grand Bay Dr #307 in Key Biscayne, FL is listed for $3,400,000 ($1,197 per sqft). Built in 1999, the home offers 2,840 sqft of living space on a N/A lot.

Key Features

  • Built in 1999
  • Waterfront

Property Details

4 full
1-car garage
#307
1999

Amenities

WaterfrontA/C
Listing Description

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.

Monthly Cost Estimate

$21,302/mo

20% down · 6.5% · 30 years

Principal$2,459
Interest$14,733
Insurance$992
HOA$3,118

Estimates only. Actual payments may vary.

Location

430 Grand Bay Dr #307

Key Biscayne, FL 33149

GRAND BAY TOWER CONDO

Features & Amenities

Interior Features

Breakfast BarBuilt-in FeaturesBedroom on Main LevelCloset CabinetryDual SinksEntrance FoyerFirst Floor EntryGarden Tub/Roman TubKitchen IslandLiving/Dining RoomMain Living Area Entry LevelSitting Area in PrimarySeparate ShowerStacked Bedrooms

Exterior Features

BalconySecurity/High Impact Doors

Property Details

Flooring

MarbleCarpet

Construction

CBS (Concrete Block Structure) Block

Parking

GarageAssignedValet

Heating

Central

Cooling

Central Air

Appliances

DryerDishwasherElectric RangeDisposalIce MakerMicrowaveRefrigeratorWasher

Questions & Answers

This 3-bedroom, 4-bathroom condo at 430 Grand Bay Dr is listed at $3,400,000 ($1,197/sqft). The estimated monthly payment is $21,302 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance, HOA fees.

HOA fees are $3118/month.

Key features include: Built in 1999, Waterfront. Interior Features: Breakfast Bar, Built-in Features, Bedroom on Main Level. Exterior Features: Balcony, Security/High Impact Doors.

This property is listed by Giulietta Ulloa.

GU

Giulietta Ulloa

License 0658811

Agent at BHHS EWM Realty

Listed by BHHS EWM Realty · Broker phone: (305) 960-2587 · View on Broker Site · Broker website

MLS# A11989375· Source: Miami REALTORS®· Added to PropertySimple today

Copyright © 2026 Miami REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

430 Grand Bay Dr #307, Key Biscayne, FL 33149

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