301 Union Ave
Mamaroneck, NY 10543
5 bd 2 ba 2,376 sqft Built 1925 Lot 12,874 sqft multi_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Mar 24, 2023 | Sold | $675,000 | Public Record |
| Jan 3, 2023 | Relisted | $699,000 | OneKeyMLS |
| Jan 1, 2023 | Listing removed | $699,000 | OneKeyMLS |
| Nov 17, 2022 | Price changed | $699,000 | OneKeyMLS |
| May 3, 2022 | Price changed | $749,000 | MLS #H6121539 |
| Aug 11, 2021 | Price changed | $779,000 | MLS #H6121539 |
| Jun 14, 2021 | Listed | $850,000 | MLS #H6121539 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $338,800 | $502,600 | $841,400 | $20,499 |
| 2024 | $338,800 | $502,600 | $841,400 | $16,390 |
| 2023 | $405,000 | $478,700 | $883,700 | $16,753 |
| 2022 | $332,000 | $478,700 | $810,700 | $16,507 |
| 2021 | $332,000 | $478,700 | $810,700 | $21,596 |
| 2020 | $436,300 | $412,400 | $848,700 | $22,040 |
| 2019 | $436,300 | $412,400 | $848,700 | $21,273 |
| 2018 | $425,800 | $403,800 | $829,600 | $24,415 |
| 2017 | $397,600 | $332,500 | $730,100 | $21,119 |
| 2016 | $401,000 | $372,900 | $773,900 | $25,324 |
| 2015 | $344,400 | $323,100 | $667,500 | $22,732 |
| 2014 | $368,600 | $312,400 | $681,000 | $21,652 |
| 2013 | $364,100 | $312,400 | $676,500 | $231,495 |
| 2012 | $356,000 | $312,400 | $668,400 | $22,354 |
| 2011 | $411,000 | $286,600 | $697,600 | $3,036 |
| 2009 | $446,800 | $311,500 | $758,300 | $15,267 |
| 2008 | $467,200 | $314,600 | $781,800 | $13,672 |
| 2007 | $422,900 | $314,600 | $737,500 | $11,421 |
Property facts
Year built
1925
Property type
multi_family
Stories
—
Beds
5
Baths
2
Living area
2,376 sqft
Lot size
12,874 sqft
ZIP code
10543
City
Mamaroneck
Street
Union Ave
Coordinates
40.95304, -73.73185
Comparable properties nearby
Frequently asked questions
When did 301 Union Ave last sell?
No public-record sale is on file for 301 Union Ave.
What is the current tax assessment for 301 Union Ave?
The most recent total assessment for 301 Union Ave (year 2025) is $841,400 with $20,499 in property tax.
When was 301 Union Ave built?
301 Union Ave was built in 1925.
How does 301 Union Ave compare to others on Union Ave?
We track 5 other properties on Union Ave. Browse the list under "Other properties on Union Ave" to compare beds, baths, and sale history.
What are the property facts for 301 Union Ave?
301 Union Ave is a 5 bed, 2 bath, 2,376 sqft, 12,874 sqft lot multi_family.
Is 301 Union Ave a flip candidate?
No — 301 Union Ave does not appear in our flips dataset.
Is 301 Union Ave a tax-appeal candidate?
Yes — 301 Union Ave appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-6.8%
Implied 1-yr
-27.2%
2026 Q3
$693.8K
2026 Q4
$693.8K
ZIP 10543 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union Ave