# 445 Grand Bay Drive #Ph-1A, Key Biscayne, FL 33149

> **TL;DR:** 5bd/6ba condo, $18,900,000 ($2241/sqft), built 1997, 8,435 sqft.
> Waterfront, View, Hardwood, A/C. Est. $101,082/mo.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $18,900,000 |
| Price/sqft | $2241 |
| Bedrooms | 5 |
| Bathrooms | 5 full, 1 half |
| Square Feet | 8,435 |
| Year Built | 1997 |
| Stories | 1 |
| Property Type | Condo (Condominium) |
| Status | Active |
| Days on Market | 0 |

## Why This Home Stands Out

- **Waterfront** - Waterfront location listed
- **Views** - Ocean
- **Hardwood Floors** - Hardwood flooring listed

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Principal & Interest (20% down, 30-year at 6.5%) | $95,569 |
| Estimated Insurance | $5,513 |
| **Total** | **$101,082** |

## Nearby Schools

- **Elementary:** Keybiscayne

## Key Amenities

- Waterfront
- View
- Hardwood
- A/C

## Property Highlights

- Built in 1997
- Waterfront

## Description

### Agent Description
High above the turquoise waters of Key Biscayne rises a penthouse that simply cannot be replicated. Once featured in Architectural Digest, this legendary corner residence at Grand Bay is a statement of scale, design, and presence. From sunrise over the Atlantic to glittering sunsets across Biscayne Bay and the Miami skyline, the views are cinematic in every direction, offering endless blue water, golden light, and exceptional privacy. Spanning an extraordinary 8,435 square feet under air and 2,825 square feet of terraces, totaling 11,260 square feet as per the developer's floor plan, the residence is defined by soaring 12-foot ceilings and grand proportions throughout. A dramatic foyer leads to a spectacular Grand Room designed for both intimate living and large-scale entertaining. The formal dining room is separate and elegant, while the completely remodeled kitchen and family room provide comfort and functionality. The fully renovated private library and custom bar enhance the home's entertaining appeal. The primary suite is serene and expansive. All the bathrooms have just been completely remodeled, offering a fresh spa-inspired experience finished to today's highest standards. Four (4) additional en-suite bedrooms ensure comfort and privacy. The terraces offer expansive outdoor living in the sky, perfect for sunrise mornings and sunset evenings overlooking the water and skyline. This is not simply a penthouse. It is a landmark residence, rare and impossible to duplicate.

## Location

- **Address:** 445 Grand Bay Drive #Ph-1A, Key Biscayne, FL 33149
- **County:** Miami-Dade
- **Neighborhood:** GRAND BAY RESIDENCES COND
- **Coordinates:** 25.692545, -80.158558
- **Google Maps:** https://www.google.com/maps?q=25.692545,-80.158558

## Listing Agent

- **Name:** Brigitte Nachtigall · **License:** 0542022
- **Brokerage:** One Sothebys International Realty
- **Phone:** 3057109664
- **Broker Phone:** (305) 666-0562
- **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/445-Grand-Bay-Dr-Ph-1A_Key-Biscayne_FL_33149_M67847-76351?f=listhub&s=MAORFL&m=A11954185&c=propsimple)

## Photos

![445 Grand Bay Drive #Ph-1A - Photo 1](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2058625990r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 2](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2541512725r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 3](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f456678185r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 4](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3897273637r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 5](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2430233417r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 6](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2626765072r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 7](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f184631095r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 8](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3471796209r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 9](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3144125373r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 10](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f770530333r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 11](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f289392117r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 12](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3087107965r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 13](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3326357829r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 14](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4063806414r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 15](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f713290229r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 16](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1549039737r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 17](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2973551792r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 18](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4254019856r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 19](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2798347201r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 20](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1305898414r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 21](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2075457822r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 22](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f251203311r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 23](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4090606499r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 24](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1171831203r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 25](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2402800570r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 26](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2891344544r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 27](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1567743843r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 28](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1156552517r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 29](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4030963297r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 30](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2280894194r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 31](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f161113901r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 32](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f848610890r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 33](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1368959886r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 34](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1985542127r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 35](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2574496613r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 36](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1219078411r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 37](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1063948709r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 38](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2915924496r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 39](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1019699957r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 40](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3086512590r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 41](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1460378168r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 42](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4100334226r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 43](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4082309672r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 44](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f4101894918r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 45](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f854913642r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 46](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f3617347728r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 47](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1575501863r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 48](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2313107508r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 49](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f90646882r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 50](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2988817655r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 51](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f2014263328r.jpg)

![445 Grand Bay Drive #Ph-1A - Photo 52](http://lh.rdcpix.com/eaa6a41012ea5cda774d5e057c460840l-f1419037759r.jpg)

---

**MLS#:** A11954185 | **Updated:** 2026-09-13
**Source:** listhub

*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.*

[View on PropertySimple](https://www.propertysimple.ai/listing/445-grand-bay-drive-key-biscayne-fl-33149-11954185)

---

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