171 Union Ave
Tarrytown, NY 10591
— ba Lot 7,436 sqft single_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 | $584,800 | $281,900 | $866,700 | $23,373 |
| 2024 | $506,000 | $281,900 | $787,900 | $20,905 |
| 2023 | $377,800 | $249,500 | $627,300 | $19,778 |
| 2022 | $261,100 | $249,500 | $510,600 | $17,178 |
| 2021 | $212,400 | $249,500 | $461,900 | $16,019 |
| 2020 | $212,400 | $249,500 | $461,900 | $14,167 |
| 2018 | $204,000 | $249,500 | $453,500 | $15,441 |
| 2017 | $183,200 | $249,500 | $432,700 | $14,601 |
| 2016 | $9,700 | $1,700 | $11,400 | $13,678 |
| 2015 | $9,700 | $1,700 | $11,400 | $13,127 |
| 2014 | $9,700 | $1,700 | $11,400 | $11,829 |
| 2013 | $9,700 | $1,700 | $11,400 | $11,584 |
| 2012 | $9,700 | $1,700 | $11,400 | $12,012 |
| 2011 | $9,700 | $1,700 | $11,400 | $11,402 |
| 2009 | $9,700 | $1,700 | $11,400 | $11,436 |
| 2008 | $9,700 | $1,700 | $11,400 | $8,830 |
| 2007 | $9,700 | $1,700 | $11,400 | $8,547 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
7,436 sqft
ZIP code
10591
City
Tarrytown
Street
Union Ave
Coordinates
41.07486, -73.84742
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 171 Union Ave last sell?
No public-record sale is on file for 171 Union Ave.
What is the current tax assessment for 171 Union Ave?
The most recent total assessment for 171 Union Ave (year 2025) is $866,700 with $23,373 in property tax.
When was 171 Union Ave built?
The year built for 171 Union Ave is not in our records.
How does 171 Union Ave compare to others on Union Ave?
We track 8 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 171 Union Ave?
171 Union Ave is a — bath, 7,436 sqft lot single_family.
Is 171 Union Ave a flip candidate?
No — 171 Union Ave does not appear in our flips dataset.
Is 171 Union Ave a tax-appeal candidate?
No — 171 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
+6.2%
Implied 1-yr
+24.9%
2026 Q1
$1.41M
2026 Q2
$1.41M
ZIP 10591 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union Ave