645 Allendale Rd
Key Biscayne, FL 33149
- 4 Beds
- 3 Baths
- 1,649 sqft
4 Beds
3 Baths
1,649 sqft
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1951
Living Area
1,649 sqft
Price/Sqft
$2,720
Description
This single-family home is located at 645 Allendale Rd, Key Biscayne, FL. 645 Allendale Rd is in Key Biscayne, FL and in ZIP code 33149. This property has 4 bedrooms, 3 bathrooms and approximately 1,649 sqft of floor space. This property has a lot size of 7492 sqft and was built in 1951.
645 Allendale Rd, Key Biscayne, FL 33149 is a 4 bedroom, 3 bathroom, 1,649 sqft single-family home built in 1951. It last sold for $775,000 on Apr 10, 2003. It is currently off market. The Trulia Estimate is $4,485,500, with a rent estimate of $7,341/month.
Home Details for 645 Allendale Rd
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Levels, Entrance, & Accessibility Stories: 2 |
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Exterior Home Features Roof: OtherExterior: StuccoPatio |
Pool Pool |
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Year Built Year Built: 1951Year Updated: 2012 |
Property Type / Style Property Type: Single Family Home |
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Units in Building: 1 |
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Lot Area: 7492 sqft |
Price History for 645 Allendale Rd
| Date | Price | Event | Source |
|---|---|---|---|
| 08/21/2009 | $1,200,000 | ListingRemoved | Agent Provided |
| 01/23/2009 | $1,200,000 | PriceChange | Agent Provided |
| 10/14/2008 | $1,329,050 | PriceChange | Agent Provided |
| 08/22/2008 | $1,399,000 | Listed For Sale | Agent Provided |
| 04/10/2003 | $775,000 | Sold | N/A |
| 11/05/1999 | $485,000 | Sold | N/A |
| 12/13/1994 | $275,000 | Sold | N/A |
Market trends in Key Biscayne
Last updated June 2026
Avg. sale price
$1.58M
$113KMoM
Sale-to-List Price
—
Price per sq ft
$945
$37MoM
Available listings
159
9MoM
Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $33,896 |
| Assessment | $3,048,300 |
Home facts updated by county records
Comparable Sales for 645 Allendale Rd
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.33 | Single-Family Home | $2,600,000 | 09/19/25 | 4 | 3 | 1,570 | |
0.04 | Single-Family Home | $3,500,000 | 01/16/26 | 4 | 3.5 | 2,775 | |
0.10 | Single-Family Home | $3,125,000 | 03/09/26 | 5 | 3.5 | 2,429 | |
0.05 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.22 | Single-Family Home | $4,400,000 | 04/16/26 | 4 | 2.5 | 3,300 | |
0.37 | Single-Family Home | $3,230,000 | 09/12/25 | 4 | 3 | 2,403 | |
0.27 | Single-Family Home | $2,800,000 | 06/30/26 | 3 | 2 | 1,403 | |
0.26 | Single-Family Home | $2,600,000 | 06/29/26 | 3 | 2 | 1,333 | |
0.31 | Single-Family Home | $2,400,000 | 10/15/25 | 3 | 2 | 2,159 | |
0.27 | Single-Family Home | $625,000 | 04/09/26 | 6 | 6 | 4,142 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 645 Allendale Rd.
What Locals Say about Key Biscayne
At least 116 Trulia users voted on each feature.
94 % Say it's walkable to grocery stores
94 % Say kids play outside
90 % Say it's dog friendly
90 % Say it's walkable to restaurants
85 % Say people would walk alone at night
85 % Say there are sidewalks
79 % Say it's quiet
79 % Say there's holiday spirit
76 % Say they plan to stay for at least 5 years
68 % Say parking is easy
67 % Say streets are well-lit
60 % Say there are community events
58 % Say neighbors are friendly
54 % Say yards are well-kept
52 % Say there's wildlife
50 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
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