402 Union Ave
Mamaroneck, NY 10543
4 bd 3 ba 3,086 sqft Built 1875 Lot 6,469 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 | $572,300 | $381,600 | $953,900 | $16,825 |
| 2024 | $526,900 | $381,600 | $908,500 | $15,963 |
| 2023 | $468,600 | $363,400 | $832,000 | $12,675 |
| 2022 | $399,900 | $363,400 | $763,300 | $12,043 |
| 2021 | $399,900 | $363,400 | $763,300 | $14,658 |
| 2020 | $393,800 | $287,500 | $681,300 | $12,754 |
| 2018 | $349,200 | $282,600 | $631,800 | $13,538 |
| 2017 | $383,500 | $280,200 | $663,700 | $11,165 |
| 2016 | $416,400 | $261,800 | $678,200 | $16,208 |
| 2015 | $283,200 | $226,900 | $510,100 | $13,422 |
| 2014 | $283,200 | $219,300 | $502,500 | $18,634 |
| 2013 | $235,200 | $219,300 | $454,500 | $155,528 |
| 2012 | $312,700 | $219,300 | $532,000 | $17,792 |
| 2011 | $417,600 | $189,900 | $607,500 | $2,644 |
| 2008 | $490,500 | $223,000 | $713,500 | $11,018 |
| 2007 | $485,500 | $223,000 | $708,500 | $8,037 |
Property facts
Year built
1875
Property type
multi_family
Stories
—
Beds
4
Baths
3
Living area
3,086 sqft
Lot size
6,469 sqft
ZIP code
10543
City
Mamaroneck
Street
Union Ave
Coordinates
40.95406, -73.73350
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 402 Union Ave last sell?
No public-record sale is on file for 402 Union Ave.
What is the current tax assessment for 402 Union Ave?
The most recent total assessment for 402 Union Ave (year 2025) is $953,900 with $16,825 in property tax.
When was 402 Union Ave built?
402 Union Ave was built in 1875.
How does 402 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 402 Union Ave?
402 Union Ave is a 4 bed, 3 bath, 3,086 sqft, 6,469 sqft lot multi_family.
Is 402 Union Ave a flip candidate?
No — 402 Union Ave does not appear in our flips dataset.
Is 402 Union Ave a tax-appeal candidate?
No — 402 Union Ave is not currently flagged as a tax-appeal candidate.
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