Westchester County  »  10543  »  Union Ave  »  306 Union Ave

306 Union Avenue, Mamaroneck, NY 10543 - Property report

Also known as: 306 Union Ave

Property image for 306 Union Avenue, Mamaroneck, NY 10543
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Ownership information for 306 Union Avenue, Mamaroneck, NY

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

Sales history for 306 Union Avenue, Mamaroneck, NY 10543

Sale date Sale price Buyer name Seller name
08/29/2013 $508,000 XXX XXXXXX; XXXXXXXXX X XXXXXX XXXX X XXXXX

*Most recent sale on record for this property.

More about Westchester County property records.

Title documents

Date Type Amount Party 1 Party 2
05/09/2022 - R
02/28/2022 - D
Other
(Registered Agreement)
XXXXXXXXX X XXXXXX XXXXXXXX XXXXX XXXX X X
05/09/2022 - R
02/28/2022 - D
Mortgage XXXXXXXXX X XXXXXX XXXXXXXX XXXXX XXXX X X
05/09/2022 - R
02/28/2022 - D
Deed XXXXXX XXX XXXXXX XXXXXXXXX X
05/09/2022 - R
12/29/2021 - D
Assignment XXXXXXXX XXXXXXXXXX XXXXXXXXXXXX XXXXXXX XXX XXXXXXXX XXXXX XXXX X X
10/27/2017 - R
10/18/2017 - D
Other
(Registered Agreement)
XXX XXXXXX XXXXXXXX XXXXXXXXXX XXXXXXXXXXXX XXXXXXX XXX
10/27/2017 - R
10/18/2017 - D
Mortgage XXX XXXXXX XXXXXXXX XXXXXXXXXX XXXXXXXXXXXX XXXXXXX XXX
09/20/2013 - R
08/29/2013 - D
Deed XXXX X XXXXX XXX XXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

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 $768,000 $768,000 21.6079 $16,595 +5.90%
2024 $731,400 $731,400 21.4249 $15,670 -1.30%
2023 $703,300 $703,300 22.5745 $15,877 +1.77%
2022 $669,800 $669,800 23.2904 $15,600 +1.43%
2021 $614,500 $614,500 25.0283 $15,380 -5.48%
2020 $614,500 $614,500 26.47812 $16,271 +8.23%
2019 $531,500 $531,500 28.285446 $15,034 +11.21%
2018 $521,400 $521,400 25.9262 $13,518 +0.53%
2017 $517,400 $517,400 25.989782 $13,447 +0.75%
2016 $496,900 $496,900 26.86073 $13,347 -14.54%

Permit information for 306 Union Avenue, Mamaroneck, NY

No recently recorded permits for this property.

Mamaroneck residential market stats

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.

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

Access the detailed traffic volume map for 306 Union Avenue, Mamaroneck, NY 10543 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
French-American School of New York NR Private PK-12 765 0.20
French-American School of New York NR Private PK-12 765 0.20
F E Bellows Elementary School 8 Public 3-5 347 0.37
Mamaroneck Avenue School 6 Public K-5 684 0.50
Daniel Warren Elementary School NR Public K-2 320 0.67
Westchester Day School NR Private PK, K-8 379 1.26
Westchester Day School NR Private PK, K-8 379 1.26
Central School 8 Public PK, K-5 513 1.27
Central School 8 Public PK, K-5 513 1.27
Parsons Memorial School 5 Public K-5 488 1.30
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
French-American School of New York NR Private PK-12 765 0.20
Rye Neck Middle School 7 Public 6-8 351 0.99
Westchester Day School NR Private PK, K-8 379 1.26
Ss John & Paul School NR Private PK-8 349 1.46
Hommocks School 7 Public 6-8 1,258 1.47
Louis M Klein Middle School 7 Public 6-8 824 1.95
Albert Leonard Middle School 7 Public 6-8 1,086 2.54
Windward School NR Private 1-9 0 2.59
Hudson Country Montessori School NR Private PK-8 201 2.63
Rye Middle School 10 Public 6-8 685 2.84
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
French-American School of New York NR Private PK-12 765 0.20
Mamaroneck High School 8 Public 9-12 1,660 0.98
Rye Neck Senior High School 9 Public 9-12 515 0.99
Westchester Hebrew High School NR Private 9-12 87 1.26
Harrison High School 9 Public 9-12 1,064 2.00
Rye High School 10 Public 9-12 903 2.84
Thornton-Donovan School NR Private K-12 170 2.92
Solomon Schechter School of Westchester NR Private K-12 741 3.13
Salesian High School NR Private 9-12 528 3.17
Scarsdale Middle School 10 Public 6-8, 10 1,131 3.61

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

Frequently asked questions

What is the year built for 306 Union Avenue, Mamaroneck, NY 10543?

The development at 306 Union Avenue, Mamaroneck, NY 10543 was built in 1900.

What is the total square footage of 306 Union Avenue, Mamaroneck, NY 10543?

306 Union Avenue, Mamaroneck, NY 10543 has a total of 1,752 square feet.

When was 306 Union Avenue, Mamaroneck, NY 10543 last sold and what was the sale price?

306 Union Avenue, Mamaroneck, NY 10543 was last sold on 08/29/2013 for $508,000.

What is the assessed value of 306 Union Avenue, Mamaroneck, NY 10543?

306 Union Avenue, Mamaroneck, NY 10543 is currently assessed at $768,000.

What are the property taxes for 306 Union Avenue, Mamaroneck, NY 10543?

The property taxes for 306 Union Avenue, Mamaroneck, NY 10543 total $16,594.

How many residential units does this building have?

This building has 2 residential unit(s).

Disclaimer

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