823 Underhill Ave
Mamaroneck, NY 10543
4 bd 6 ba 2,244 sqft Built 1927 Lot 4,994 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Mar 9, 2022 | Sold | $400,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $534,000 | $124,000 | $658,000 | $11,396 |
| 2024 | $376,000 | $124,000 | $500,000 | $10,171 |
| 2023 | $276,000 | $124,000 | $400,000 | $7,191 |
| 2022 | $399,000 | $124,000 | $523,000 | $2,418 |
| 2021 | $343,000 | $124,000 | $467,000 | $3,488 |
| 2020 | $343,000 | $124,000 | $467,000 | $3,948 |
| 2018 | $317,000 | $124,000 | $441,000 | $4,978 |
| 2017 | $317,000 | $124,000 | $441,000 | $2,325 |
| 2016 | $283,000 | $117,000 | $400,000 | $4,169 |
| 2015 | $283,000 | $117,000 | $400,000 | $7,589 |
| 2014 | $283,000 | $117,000 | $400,000 | $13,786 |
| 2013 | $6,000 | $2,000 | $8,000 | $5,357 |
| 2012 | $9,500 | $2,000 | $11,500 | $6,684 |
| 2011 | $9,500 | $2,000 | $11,500 | $15,438 |
| 2008 | $9,500 | $2,000 | $11,500 | $12,155 |
| 2007 | $9,500 | $2,000 | $11,500 | $11,080 |
Property facts
Year built
1927
Property type
single_family
Stories
—
Beds
4
Baths
6
Living area
2,244 sqft
Lot size
4,994 sqft
ZIP code
10543
City
Mamaroneck
Street
Underhill Ave
Coordinates
40.95774, -73.74056
Comparable properties nearby
Frequently asked questions
When did 823 Underhill Ave last sell?
No public-record sale is on file for 823 Underhill Ave.
What is the current tax assessment for 823 Underhill Ave?
The most recent total assessment for 823 Underhill Ave (year 2025) is $658,000 with $11,396 in property tax.
When was 823 Underhill Ave built?
823 Underhill Ave was built in 1927.
How does 823 Underhill Ave compare to others on Underhill Ave?
We do not currently track other properties on Underhill Ave.
What are the property facts for 823 Underhill Ave?
823 Underhill Ave is a 4 bed, 6 bath, 2,244 sqft, 4,994 sqft lot single_family.
Is 823 Underhill Ave a flip candidate?
No — 823 Underhill Ave does not appear in our flips dataset.
Is 823 Underhill Ave a tax-appeal candidate?
Yes — 823 Underhill 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
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Geography