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What we cover
435 21st St, Miami Beach 33139
2008
Year Built
66
Units
CI Score
Moderate
6
For Sale
$349K
Avg Price
$574
Sale $/SF
6
For Rent
$2,675
Avg Rent
$4.45
Rent $/SF
-11.2%
YoY
For Sale
6
For Rent
6
Investor-Owned
87%
Avg HOA
$1,008/mo
Address
435 21st St, Miami Beach, 33139
Neighborhood
Miami Beach
Year Built
2008
Total Units
66
Avg Unit Sqft
636 SF
Tier
Premium
Avg $/SF
$573.88
Avg Rent
$2,675/mo
Rent $/SF
$4.45/SF
HOA Range
$1,000 – $1,100
Neighborhood Rank
Top 16%
Avg Unit Value
$290K
Total Sales (All-Time)
148
Sale Price Trend ($/SF)
$441
Rental Price Trend ($/SF)
$3.64
Building Activity
Closed Sales (120d)
0
transactions
Low volume
Median Rent
$2,675
/month
Active Listings
For Sale (6)

$330K
Unit 212
$349K

$349K

$349K
Unit 307
$379K

$389K
For Rent (6)

$2K
Unit 102
$3K

$3K

$3K

$3K

$3K
Unit 318Recent Sales
| Date | Price | $/SF | Bed/Bath | SF |
|---|---|---|---|---|
| Aug 1, 2025 | $260K | $440.68 | 1/1 | 590 |
| Jul 29, 2025 | $260K | $440.68 | 1/1 | 590 |
| Feb 16, 2024 | $330K | $593.53 | 1/1 | 556 |
| Feb 15, 2024 | $330K | $593.53 | 1/1 | 556 |
| Jan 4, 2024 | $400K |
Total Units
66
Avg Sqft
636 SF
Avg Assessed
$289K
Owner-Occupied
13%
Tax & Ownership
Investor-Owned
87%
Owner-Occupied
13%
Avg Assessed Value
$289K
Avg Taxable Value
$282K
Effective Year Built
2008
Zoning
6501
Unit Mix
Avg 2,032 SF
Avg 613 SF
Avg 941 SF
Avg 310 SF
Unit Directory
Showing 10 of 66 units| Unit | Beds | Baths | SF | Assessed | Owner | Last Sale | $/SF | Sale Date |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | — | — | — |
| 1 | — | — | 365 | $128K | — | — | — | Feb 2017 |
| 2 | — | — | 220 | $77K | — | $20K | $91 | Feb 2017 |
| 3 | — | — | 344 | $121K | — | $5K | $15 | Feb 2017 |
| 4 | 0 | 0 | 2,032 | $498K | ✓ | $900K | $443 | Oct 2021 |
| 101 | 1 | 1 | 807 | $343K | ✓ | $353K | $437 | Aug 2013 |
| 102 | 1 | 1 | 651 | $312K | — | $293K | $450 | Apr 2021 |
| 103 | 1 | 1 | 651 | $312K | — | $240K | $369 | Apr 2019 |
| 104 | 1 | 1 | 651 | $312K | ✓ | $221K | $340 | Dec 2021 |
| 105 | 1 | 1 | 651 | $312K | — | $400K | $614 | Jan 2024 |
Top Agents in This Building
Top Brokerages in This Building
| Brokerage | Agents | Sales | Volume |
|---|---|---|---|
Douglas Elliman | 1 | 1 | $330K |
Keller Williams Realty | 1 | 1 | $330K |





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Neighborhood
Miami Beach →
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Building Snapshot
| $614.44 |
| 1/1 |
| 651 |
| Dec 22, 2023 | $385K | $591.4 | 1/1 | 651 |
| Dec 21, 2023 | $385K | $591.4 | 1/1 | 651 |
| Nov 7, 2023 | $352K | $590.27 | 1/1 | 596 |
| Jul 13, 2023 | $335K | $602.52 | 1/— | 556 |
| Jul 12, 2023 | $335K | $602.52 | 1/1 | 556 |