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What we cover
445 GRAND BAY DR, Key Biscayne 33149
1997
Year Built
138
Units
CI Score
Strong
2
For Sale
$6.0M
Avg Price
$1,626
Sale $/SF
2
For Rent
$13,000
Avg Rent
$5.78
Rent $/SF
+7.5%
YoY
For Sale
2
For Rent
2
Investor-Owned
60%
Avg HOA
$7,046/mo
Address
445 GRAND BAY DR, Key Biscayne, 33149
Neighborhood
Key Biscayne
Year Built
1997
Total Units
138
Avg Unit Sqft
3,220 SF
Tier
Ultra Luxury
Avg $/SF
$1,625.7
Avg Rent
$13,000/mo
Rent $/SF
$5.78/SF
HOA Range
$7,046 – $7,046
Google Rating
4.5 (2787 reviews)
Neighborhood Rank
Top 4%
Avg Unit Value
$3.1M
Total Sales (All-Time)
377
Sale Price Trend ($/SF)
$1,345
Rental Price Trend ($/SF)
$4.41
Building Activity
Closed Sales (120d)
0
transactions
Low volume
Active Listings
For Sale (2)
$2.1M
$9.9M
For Rent (2)
$12K
Unit 412
$14K
Unit 310Recent Sales
| Date | Price | $/SF | Bed/Bath | SF |
|---|---|---|---|---|
| Nov 18, 2025 | $4.5M | $1,344.88 | 3/4 | 3,320 |
| Sep 12, 2025 | $2.7M | $1,035.99 | 3/3 | 2,570 |
| Sep 9, 2025 | $2.7M | $1,035.99 | 2/3 | 2,570 |
| Aug 28, 2025 | $8.0M | $1,663.2 | 5/5 | 4,810 |
| Aug 15, 2025 | $2.8M |
Total Units
138
Avg Sqft
3,220 SF
Avg Assessed
$2.5M
Owner-Occupied
40%
Tax & Ownership
Investor-Owned
60%
Owner-Occupied
40%
Avg Assessed Value
$2.5M
Avg Taxable Value
$2.4M
Effective Year Built
1997
Zoning
9400
Unit Mix
Avg 2,102 SF
Avg 3,334 SF
Avg 7,545 SF
Avg 5,564 SF
Unit Directory
Showing 10 of 138 units| Unit | Beds | Baths | SF | Assessed | Owner | Last Sale | $/SF | Sale Date |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | — | — | — |
| 101 | 3 | 3 | 3,150 | $2.2M | — | $1.2M | $367 | Mar 2000 |
| 102 | 2 | 4 | 2,360 | $1.6M | — | $585K | $248 | Nov 1997 |
| 103 | 3 | 4 | 2,930 | $1.6M | ✓ | $2.1M | $717 | Apr 2017 |
| 104 | 3 | 3 | 3,250 | $2.6M | ✓ | $3.1M | $954 | Nov 2023 |
| 201 | 2 | 3 | 2,490 | $1.9M | — | $560K | $225 | Feb 1997 |
| 202 | 3 | 4 | 2,950 | $2.1M | — | $1.6M | $559 | Jun 2021 |
| 203 | 3 | 4 | 3,480 | $1.4M | ✓ | $1.6M | $474 | Jun 2004 |
| 204 | 3 | 4 | 3,290 | $2.3M | — | $995K | $302 | Sep 2003 |
| 208 | 3 | 4 | 3,290 | $1.4M | ✓ | $2.0M | $608 | May 2018 |
Top Agents in This Building
Top Brokerages in This Building
| Brokerage | Agents | Sales | Volume |
|---|---|---|---|
 EWM Realty International | 1 | 2 | $2.7M |
 Compass | 1 | 1 | $13K |
 Coldwell Banker | 1 | 1 | $13K |
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Neighborhood
Key Biscayne →
View all buildings in this area
Building Snapshot
| $932.2 |
| 3/4 |
| 2,950 |
| Jul 11, 2025 | $4.5M | $1,525.42 | 3/4 | 2,950 |
| Jun 25, 2025 | $4.5M | $1,525.42 | 3/4 | 2,950 |
| May 16, 2025 | $1.9M | $1,093.75 | 2/2 | 1,760 |
| Jul 9, 2024 | $4.5M | $1,229.51 | 3/5 | 3,660 |
| Jul 8, 2024 | $4.5M | $1,229.51 | 3/4 | 3,660 |
 Avanti Way Realty |
| 1 |
| 1 |
| $10K |
 Envirotek Realty | 1 | 1 | $9K |
