343 21st St
Deer Park, NY 11729
5 bd 3 ba Built 1960 Lot 8,500 sqft multi_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $3,570 | $380 | $3,950 | $14,415 |
| 2024 | $3,570 | $380 | $3,950 | $13,875 |
| 2023 | $3,570 | $380 | $3,950 | $6,758 |
| 2022 | $3,570 | $380 | $3,950 | $13,367 |
| 2021 | $3,570 | $380 | $3,950 | $11,827 |
| 2020 | $3,570 | $380 | $3,950 | $11,509 |
| 2018 | $3,570 | $380 | $3,950 | $11,117 |
| 2017 | $3,570 | $380 | $3,950 | $10,806 |
| 2016 | $3,570 | $380 | $3,950 | $10,743 |
| 2015 | $3,570 | $380 | $3,950 | $10,622 |
| 2014 | $3,570 | $380 | $3,950 | $10,331 |
| 2013 | $3,570 | $380 | $3,950 | $10,211 |
| 2012 | $3,570 | $380 | $3,950 | $9,774 |
| 2011 | $3,570 | $380 | $3,950 | $9,509 |
| 2010 | $3,570 | $380 | $3,950 | $9,298 |
| 2008 | $3,570 | $380 | $3,950 | $9,097 |
| 2007 | $4,010 | $380 | $4,390 | $9,902 |
| 2006 | $4,010 | $380 | $4,390 | $9,396 |
Property facts
Year built
1960
Property type
multi_family
Stories
2
Beds
5
Baths
3
Living area
—
Lot size
8,500 sqft
ZIP code
11729
City
Deer Park
Street
21st St
Coordinates
40.74456, -73.34249
Frequently asked questions
When did 343 21st St last sell?
No public-record sale is on file for 343 21st St.
What is the current tax assessment for 343 21st St?
The most recent total assessment for 343 21st St (year 2025) is $3,950 with $14,415 in property tax.
When was 343 21st St built?
343 21st St was built in 1960.
How does 343 21st St compare to others on 21st St?
We track 8 other properties on 21st St. Browse the list under "Other properties on 21st St" to compare beds, baths, and sale history.
What are the property facts for 343 21st St?
343 21st St is a 5 bed, 3 bath, 8,500 sqft lot multi_family.
Is 343 21st St a flip candidate?
No — 343 21st St does not appear in our flips dataset.
Is 343 21st St a tax-appeal candidate?
No — 343 21st St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-2.2%
Implied 1-yr
-8.6%
2026 Q3
$500.3K
2026 Q4
$487.8K
ZIP 11729 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 21st St