Westchester County  »  10543  »  W Boston Post Rd  »  631 W Boston Post Rd

631 West Boston Post Road, Mamaroneck, NY 10543 Property Information

631 West Boston Post Road, Mamaroneck, NY 10543 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
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631 West Boston Post Road, Mamaroneck, NY 10543
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Address

Primary address 631 West Boston Post Road, Mamaroneck
Zip code 10543
County Westchester
Municipality Mamaroneck
Parcel ID 9.20-386-0

Sales & Tax Overview for 631 West Boston Post Road, Mamaroneck

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Sale date 08/01/1997
Sale price $1,750,000
Arm's length
Current property tax $66,367

Lot & Building Information for 631 West Boston Post Road, Mamaroneck

Building sqft 14,380
Building class Special Schools and Institutions (614)
Acreage 0.83
Year built 1920
Stories 2
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 631 West Boston Post Road, Mamaroneck

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About 631 West Boston Post Road, Mamaroneck

What is the year built & the total sq. ft. for 631 West Boston Post Road, Mamaroneck, NY 10543?

631 West Boston Post Road, Mamaroneck, NY 10543 was built in 1920 and has a total of 14,380 square feet.

What is the assessed value of 631 West Boston Post Road, Mamaroneck, NY 10543 and the property tax paid?

Assessed at $4,070,000, the tax amount paid for 631 West Boston Post Road, Mamaroneck, NY 10543 is $86,101.

When was 631 West Boston Post Road, Mamaroneck, NY 10543 last sold?

631 West Boston Post Road, Mamaroneck, NY 10543 was last sold in 05/10/2000.

Ownership Information

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Real Estate Reports:
Eliza Theiss, Jun 23, 2026 NYC Resale Gains & Losses: Every Borough Made Money in 2025, Except Manhattan
In 2025, NYC home-sellers mostly made money. But, in Manhattan, resales came with losses — and it was apartments and recent buyers that absorbed them.
Laura Pop-Badiu, Jun 11, 2026 NYC Business Leaders on RTO: Survey Reveals Hybrid Still Dominates, Office Attendance Set to Rise
Hubble’s recent survey of 126 founders, CEOs and other decision-makers in New York City’s startup ecosystem revealed how local business leaders are approaching workplace strategy in 2026 and beyond.
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.
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Past Sales & Property History for 631 West Boston Post Road, Mamaroneck

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Purchase date Purchase price Buyer name Seller name
08/01/1997 $1,750,000

Title Documents for 631 West Boston Post Road, Mamaroneck

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Date Type Amount Party 1 Party 2 Doc image
09/13/2000 - R
05/10/2000 - D
Deed
08/28/1997 - R
08/01/1997 - D
Deed
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 631 West Boston Post Road, Mamaroneck

Access detailed property tax data for 631 West Boston Post Road, Mamaroneck, NY 10543. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025
Base tax $86,101
Current property tax $66,367
Market value $4,070,000
Assessed value $4,070,000

Assessment History for 631 West Boston Post Road, Mamaroneck

Here's the assessment & property tax history for 631 West Boston Post Road, 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 $4,070,000 $4,070,000 21.155 $86,101 -0.39%
2024 $4,070,000 $4,070,000 21.2384 $86,440 -7.12%
2023 $4,070,000 $4,070,000 22.8669 $93,068 -4.68%
2022 $4,070,000 $4,070,000 23.9884 $97,633 -1.62%
2021 $4,070,000 $4,070,000 24.3829 $99,238 +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) 0.2, AE, X (See more on map)

Transportation

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Neighbors for 631 West Boston Post Road, Mamaroneck

Here are the neighbors for 631 West Boston Post Road, Mamaroneck.

Address Square feet Purchase date Purchase price
703 W Boston Post Rd, Mamaroneck 4,572 02/12/2016
747 W Boston Post Rd, Mamaroneck 2,280
191 Prospect Ave, Mamaroneck 2,100
659 W Boston Post Rd #67, Mamaroneck 3,756 01/17/2017 $1
803 W Boston Post Rd #9, Mamaroneck 8,800 12/27/2007
412 Rushmore Ave, Mamaroneck 3,311 10/01/2020 $800,000
225 MT Pleasant Ave, Mamaroneck 3,452 04/16/2021
615 Hall St, Mamaroneck 1,640 10/30/2023 $970,000
129 Prospect Ave, Mamaroneck 2,267 11/16/2021 $820,000
910 Hall St, Mamaroneck 2,252 08/07/2020
131 Prospect Ave #33, Mamaroneck 2,870 08/12/2021 $900,000
205 Royal Pl, Mamaroneck 1,157 03/18/2026 $410,000
649 W Boston Post Rd, Mamaroneck 4,852 02/09/2011 $1,840,000
231 MT Pleasant Ave, Mamaroneck 1,650 09/14/2005 $280,000
237 MT Pleasant Ave, Mamaroneck 1,984 02/28/2005 $525,000
721 W Boston Post Rd, Mamaroneck 2,268 10/01/2009 $612,500
143 Prospect Ave, Mamaroneck 7,019 06/30/2010 $1
189 Prospect Ave, Mamaroneck 2,479
727 W Boston Post Rd, Mamaroneck 1,656 05/07/2008 $850,000
609 Hall St, Mamaroneck 3,780 05/31/2002 $780,000

Nearby ZIP Codes for 631 West Boston Post Road, Mamaroneck

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