Westchester County  »  10543  »  Palmer Ave  »  845 Palmer Ave

845 Palmer Avenue, Mamaroneck, NY 10543 Property Information

845 Palmer Avenue, Mamaroneck, NY 10543 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
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845 Palmer Avenue, Mamaroneck, NY 10543
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Address

Primary address 845 Palmer Avenue, Mamaroneck
Zip code 10543
County Westchester
Municipality Mamaroneck
Parcel ID 9.5-54-0

Sales & Tax Overview for 845 Palmer Avenue, Mamaroneck

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 08/04/2025
Sale price $67,800,000
Arm's length
Current property tax $418,748

Lot & Building Information for 845 Palmer Avenue, Mamaroneck

Building sqft 132,505
Building class Homes for the Aged (633)
Acreage 5.53
Year built 1980
Stories 3
Water supply Comm/public
Sewer Comm/public
Story height
Air conditioning coverage 100%
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Mamaroneck

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Other Property Data for 845 Palmer Avenue, Mamaroneck

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About 845 Palmer Avenue, Mamaroneck

What is the year built & the total sq. ft. for 845 Palmer Avenue, Mamaroneck, NY 10543?

845 Palmer Avenue, Mamaroneck, NY 10543 was built in 1980 and has a total of 132,505 square feet.

What is the assessed value of 845 Palmer Avenue, Mamaroneck, NY 10543 and the property tax paid?

Assessed at $25,680,000, the tax amount paid for 845 Palmer Avenue, Mamaroneck, NY 10543 is $543,261.

When was 845 Palmer Avenue, Mamaroneck, NY 10543 last sold and what was the last sale price?

845 Palmer Avenue, Mamaroneck, NY 10543 was last sold in 08/04/2025 for $67,800,000.

Ownership Information

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Real Estate Reports:
Eliza Theiss, Jun 04, 2026 World Cup or Your Mortgage/Rent? Ticket Prices Rival Host City Housing Costs
World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
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Past Sales & Property History for 845 Palmer Avenue, Mamaroneck

Create a free account to view the complete sales history for 845 Palmer Avenue, Mamaroneck, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/04/2025 $67,800,000

Title Documents for 845 Palmer Avenue, Mamaroneck

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Date Type Amount Party 1 Party 2 Doc image
08/20/2025 - R
08/04/2025 - D
Mortgage
08/20/2025 - R
08/04/2025 - D
Deed
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 845 Palmer Avenue, Mamaroneck

Access detailed property tax data for 845 Palmer Avenue, Mamaroneck, NY 10543. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025
Base tax $543,262
Current property tax $418,748
Market value $25,680,000
Assessed value $25,680,000

Assessment History for 845 Palmer Avenue, Mamaroneck

Here's the assessment & property tax history for 845 Palmer Avenue, Mamaroneck, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessment value Total tax rate Property tax Year over year change
2025 $25,680,000 $25,680,000 21.155 $543,262 -0.39%
2024 $25,680,000 $25,680,000 21.2384 $545,402 -7.12%
2023 $25,680,000 $25,680,000 22.8669 $587,221 -4.68%
2022 $25,680,000 $25,680,000 23.9884 $616,021 -1.62%
2021 $25,680,000 $25,680,000 24.3829 $626,153 +1.83%

Mamaroneck residential market stats

Median Sale Price
$1,060,000
-35.1% YoY
Median Price/Sqft
$534
-14.4% YoY
Westchester County Median Sale Price
$850,000
4.9% YoY

Access a detailed real estate market overview of Mamaroneck so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Mamaroneck and compare it to other neighborhoods in Westchester County.

Demographics by Zip Code

Total population 20,989
Median age 39.8
Average household income $202,707
Family households 71.7%
Occupied housing units 7,630
Owner occupied units 58.2%
People per household (average) 2.71
Median year structure built 1954
Median value for units with a mortgage $756,700
Median value for units without a mortgage $688,400

Risk

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FEMA flood zone(s) X (See more on map)

Transportation

Access the detailed traffic volume map for 845 Palmer Avenue, Mamaroneck to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Neighbors for 845 Palmer Avenue, Mamaroneck

Here are the neighbors for 845 Palmer Avenue, Mamaroneck.

Address Square feet Purchase date Purchase price
357 Mamaroneck Ave #65, Mamaroneck 4,725 03/04/2011 $300,000
517 Fayette Ave, Mamaroneck 7,534 08/19/2011 $1,100,000
510 Fayette Ave, Mamaroneck 1,390 09/28/2011 $550,000
124 E Prospect Ave, Mamaroneck 3,110 01/17/2020 $800,000
172 E Prospect Ave, Mamaroneck 22,580 06/21/2017 $995,000
180 E Prospect Ave, Mamaroneck 4,007 08/18/2003 $289,000
309 Fayette Ave, Mamaroneck 420 10/30/2023 $5,000,000
430 Fayette Ave, Mamaroneck 1,388 12/17/2025
132 E Prospect Ave, Mamaroneck 7,508 01/27/2000 $525,000
514 Fayette Ave, Mamaroneck 1,600
527 Fayette Ave, Mamaroneck 1,920
343 Mamaroneck Ave, Mamaroneck 3,343 10/02/2015
316 Northrup Ave, Mamaroneck 1,718 02/22/2024 $500,000
509 Fayette Ave, Mamaroneck 3,800 05/01/2001
434 Fayette Ave, Mamaroneck 1,460
431 Fayette Ave, Mamaroneck 27,452 02/02/2004
519 Center Ave, Mamaroneck 6,600 07/21/2016 $750,000
325 Center Ave, Mamaroneck 5,880 08/04/2000 $450,000
513 Fayette Ave, Mamaroneck 1,848 03/01/2012 $500,000
502 Fayette Ave, Mamaroneck 1,160 12/29/1997

Nearby ZIP Codes for 845 Palmer Avenue, Mamaroneck

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