Westchester County  »  10543  »  Jefferson Ave  »  434 Jefferson Ave

434 Jefferson Avenue, Mamaroneck, NY 10543 - Property report

Also known as: 434 Jefferson Ave

Property image for 434 Jefferson Avenue, Mamaroneck, NY 10543
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Property type

One Family Year-Round Residence (210)

Year built

1892

Acreage

0.11

General information

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Address
Primary address
434 Jefferson Avenue
ZIP code
10543
County
Westchester
SWIS code
Village of Mamaroneck
Parcel ID
154.34-1-62

Owner

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Tax
Tax year
2025
Current property tax
$14,405
Zoning & Use
Zoning
R-2F
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
1,684
Buildings on lot
1
Stories
2.4
Year built
1892
AC
No
Rooms
6
Bedrooms
3
Bathrooms
1
Condition
Good
Exterior wall
Stucco
Building style
Old style
Kitchen
1
Basement
4
Attic
130
Heating
Hot air
Fuel
Gas
First story sq. ft.
Second story sq. ft.
Lot
Lot dimensions
50 ft X 100 ft
Acreage
0.11
Frontage
50 ft
Depth
100
Water
Comm/public
Sewer
Comm/public

Area overview

Walk score
87 /100.  Very Walkable
Transit score
51 /100.  Good Transit
Bike score
56 /100.  Bikeable
School district
554801

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 434 Jefferson Avenue, Mamaroneck, NY

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Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 434 Jefferson Avenue, Mamaroneck, NY 10543

No recently recorded sales for this property.

More about Westchester County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 434 Jefferson Avenue, Mamaroneck, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025
Current property tax
$14,405
Base tax
$14,791
Recent tax assessments
Market value
$684,500
Land value
$275,900
Building value
$408,600
Assessed value
$684,500

More about Westchester County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2025 $684,500 $684,500 21.6079 $14,791 +6.91%
2024 $645,700 $645,700 21.4249 $13,834 -3.19%
2023 $633,000 $633,000 22.5745 $14,290 +2.74%
2022 $597,200 $597,200 23.2904 $13,909 +1.43%
2021 $547,900 $547,900 25.0283 $13,713 -5.48%
2020 $547,900 $547,900 26.47812 $14,507 -7.20%
2019 $552,700 $552,700 28.285446 $15,633 +11.42%
2018 $541,200 $541,200 25.9262 $14,031 +0.24%
2017 $538,600 $538,600 25.989782 $13,998 +5.43%
2016 $494,300 $494,300 26.86073 $13,277 -9.14%
Permits

Permit information for 434 Jefferson Avenue, Mamaroneck, NY

No recently recorded permits for this property.

Neighborhood

Mamaroneck residential market stats

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Median sale price

$1,060,000

-35.1% Y-o-Y

Median price/sq. ft.

$534

-14.4% Y-o-Y

Westchester county median sale price

$850,000

4.9% Y-o-Y

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Mamaroneck Avenue School 6 Public K-5 684 0.26
F E Bellows Elementary School 8 Public 3-5 347 0.48
French-American School of New York NR Private PK-12 765 0.50
French-American School of New York NR Private PK-12 765 0.50
Daniel Warren Elementary School NR Public K-2 320 0.68
Parsons Memorial School 5 Public K-5 488 1.14
Central School 8 Public PK, K-5 513 1.49
Central School 8 Public PK, K-5 513 1.49
Westchester Day School NR Private PK, K-8 379 1.56
Westchester Day School NR Private PK, K-8 379 1.56
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
French-American School of New York NR Private PK-12 765 0.50
Rye Neck Middle School 7 Public 6-8 351 0.98
Westchester Day School NR Private PK, K-8 379 1.56
Ss John & Paul School NR Private PK-8 349 1.60
Hommocks School 7 Public 6-8 1,258 1.70
Louis M Klein Middle School 7 Public 6-8 824 1.71
Windward School NR Private 1-9 0 2.29
Albert Leonard Middle School 7 Public 6-8 1,086 2.54
Hudson Country Montessori School NR Private PK-8 201 2.58
Rye Middle School 10 Public 6-8 685 2.75
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
French-American School of New York NR Private PK-12 765 0.50
Rye Neck Senior High School 9 Public 9-12 515 0.98
Mamaroneck High School 8 Public 9-12 1,660 1.21
Westchester Hebrew High School NR Private 9-12 87 1.56
Harrison High School 9 Public 9-12 1,064 1.70
Rye High School 10 Public 9-12 903 2.75
Solomon Schechter School of Westchester NR Private K-12 741 2.83
Thornton-Donovan School NR Private K-12 170 3.02
Iona Preparatory School NR Private PK-12 1,008 3.15
Scarsdale Middle School 10 Public 6-8, 10 1,131 3.35

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 434 Jefferson Avenue, Mamaroneck, NY

614 Hillside Ave, Mamaroneck 531 Hillside Ave, Mamaroneck 527 Grade St, Mamaroneck 600 Hillside Ave, Mamaroneck 527 Jefferson Ave, Mamaroneck 430 Jefferson Ave, Mamaroneck 403 Jefferson Ave, Mamaroneck 543 Halstead Ave, Mamaroneck 515 Jefferson Ave, Mamaroneck 620 Hillside Ave, Mamaroneck 521 Jefferson Ave, Mamaroneck 1512 Pine Knoll Ln, Mamaroneck 426 Jefferson Ave, Mamaroneck 529 Grade St, Mamaroneck 1519 Pine Knoll Ln, Mamaroneck 531 Jefferson Ave, Mamaroneck 511 Jefferson Ave, Mamaroneck 535 Jefferson Ave, Mamaroneck 422 Jefferson Ave, Mamaroneck 415 Jefferson Ave, Mamaroneck

Nearby ZIP codes for 434 Jefferson Avenue, Mamaroneck, NY

10528, Westchester County, NY 10530, Westchester County, NY 10538, Westchester County, NY 10552, Westchester County, NY 10553, Westchester County, NY 10573, Westchester County, NY 10577, Westchester County, NY 10580, Westchester County, NY 10583, Westchester County, NY 10601, Westchester County, NY 10604, Westchester County, NY 10605, Westchester County, NY 10606, Westchester County, NY 10707, Westchester County, NY 10708, Westchester County, NY 10709, Westchester County, NY 10801, Westchester County, NY 10803, Westchester County, NY 10804, Westchester County, NY 10805, Westchester County, NY

Frequently asked questions

What is the year built for 434 Jefferson Avenue, Mamaroneck, NY 10543?

The development at 434 Jefferson Avenue, Mamaroneck, NY 10543 was built in 1892.

What is the total square footage of 434 Jefferson Avenue, Mamaroneck, NY 10543?

434 Jefferson Avenue, Mamaroneck, NY 10543 has a total of 1,684 square feet.

What is the assessed value of 434 Jefferson Avenue, Mamaroneck, NY 10543?

434 Jefferson Avenue, Mamaroneck, NY 10543 is currently assessed at $684,500.

What are the property taxes for 434 Jefferson Avenue, Mamaroneck, NY 10543?

The property taxes for 434 Jefferson Avenue, Mamaroneck, NY 10543 total $14,790.

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