Westchester County  »  10543  »  Union Ave  »  209 Union Ave

209 Union Avenue, Mamaroneck, NY 10543 Property Information

209 Union Avenue, Mamaroneck, NY 10543 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

209 Union Avenue, Mamaroneck, NY 10543
static Mapbox map

Address

Primary address 209 Union Avenue, Mamaroneck
Zip code 10543
County Westchester
Municipality Rye
Parcel ID 154.50-1-37

Sales & Tax Overview for 209 Union Avenue, Mamaroneck

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

Sale date 12/24/2016
Sale price $1
Arm's length
Current property tax $25,804

Lot & Building Information for 209 Union Avenue, Mamaroneck

Building sqft 1,677
Building class One Family Year-Round Residence (210)
Acreage 0.18
Lot dimensions 50 ft X 155 ft
Frontage 50
Depth 155
Year built 1925
Year last altered 2015
Stories 2
Rooms 9
Bedrooms 4
Bathrooms 2
Half bathrooms 1
Kitchen 1
Water supply Comm/public
Sewer Comm/public
Style Colonial
Condition 5
Basement 4
Exterior wall Alum/vinyl
Heating type Hot water/steam
Heating fuel Gas
Central air conditioning Yes
Fireplace 1
First story sqft
Second story sqft
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Rye Neck

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 209 Union Avenue, Mamaroneck

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 209 Union Avenue, Mamaroneck , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 209 Union Avenue, Mamaroneck

What is the year built & the total sq. ft. for 209 Union Avenue, Mamaroneck, NY 10543?

209 Union Avenue, Mamaroneck, NY 10543 was built in 1925 and has a total of 1,677 square feet.

What is the assessed value of 209 Union Avenue, Mamaroneck, NY 10543 and the property tax paid?

Assessed at $1,146,200, the tax amount paid for 209 Union Avenue, Mamaroneck, NY 10543 is $24,766.

When was 209 Union Avenue, Mamaroneck, NY 10543 last sold?

209 Union Avenue, Mamaroneck, NY 10543 was last sold in 10/19/2017.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 209 Union Avenue, Mamaroneck

Create a free account to view the complete sales history for 209 Union Avenue, Mamaroneck, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
12/24/2016 $1
12/23/2016 $900,000
09/18/2015 $450,000
       
       
Access the complete sales history for 209 Union Avenue, Mamaroneck with a free account.
Sign up

*Here are the three most recent sales for this property.


Title Documents for 209 Union Avenue, Mamaroneck

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Doc image
10/19/2017 - D
10/27/2017 - R
Deed
12/24/2016 - D
05/18/2017 - R
Deed
(Correction deed)
12/23/2016 - D
01/04/2017 - R
Deed
09/18/2015 - D
09/24/2015 - R
Deed
03/31/2015 - D
04/08/2015 - R
Deed
06/14/2000 - D
07/19/2000 - R
Deed
(Administrator`s deed)
11/10/1997 - D
12/03/1997 - R
Deed
Unlock daily updated title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 209 Union Avenue, Mamaroneck

Access detailed property tax data for 209 Union Avenue, Mamaroneck, NY 10543. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025
Base tax $24,767
Current property tax $25,804
Market value $1,146,200
Assessed value $1,146,200

Assessment History for 209 Union Avenue, Mamaroneck

Here's the assessment & property tax history for 209 Union 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 $1,146,200 $1,146,200 21.6079 $24,767 +5.90%
2024 $1,091,600 $1,091,600 21.4249 $23,387 -1.29%
2023 $1,049,600 $1,049,600 22.5745 $23,694 +1.77%
2022 $999,600 $999,600 23.2904 $23,281 +1.43%
2021 $917,100 $917,100 25.0283 $22,953 -5.48%

Mamaroneck residential market stats

Median Sale Price
$1,100,000
-10.3% YoY
Median Price/Sqft
$535
-8.4% YoY
Westchester County Median Sale Price
$850,000
3.7% 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.

Risk

Create a free account to unlock extended information for 209 Union Avenue, Mamaroneck, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

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

Transportation

Access the detailed traffic volume map for 209 Union Avenue, Mamaroneck to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
French-American School of New York NR Private PK-12 765 0.11
French-American School of New York NR Private PK-12 765 0.11
F E Bellows Elementary School 8 Public 3-5 347 0.32
Mamaroneck Avenue School 6 Public K-5 684 0.60
Daniel Warren Elementary School NR Public K-2 320 0.62

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
French-American School of New York NR Private PK-12 765 0.11
Rye Neck Middle School 7 Public 6-8 351 0.94
Westchester Day School NR Private PK, K-8 379 1.18
Hommocks School 7 Public 6-8 1,258 1.45
Ss John & Paul School NR Private PK-8 349 1.49

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
French-American School of New York NR Private PK-12 765 0.11
Rye Neck Senior High School 9 Public 9-12 515 0.94
Mamaroneck High School 8 Public 9-12 1,660 0.97
Westchester Hebrew High School NR Private 9-12 87 1.18
Harrison High School 9 Public 9-12 1,064 2.07

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 209 Union Avenue, Mamaroneck

Here are the neighbors for 209 Union Avenue, Mamaroneck.

Address Square feet Purchase date Purchase price
205 Union Ave, Mamaroneck 1,368 10/04/2025 $720,000
308 Tompkins Ave, Mamaroneck 1,770 12/17/2021
320 Ward Ave, Mamaroneck 1,504 01/03/2018 $575,000
315 Ward Ave, Mamaroneck 2,860 12/14/2006 $600,000
406 Tompkins Ave, Mamaroneck 1,430 12/18/2014 $686,000
311 Ward Ave, Mamaroneck 2,043 12/06/2004 $1
325 Ward Ave, Mamaroneck 2,394 08/20/2012 $360,000
323 Ward Ave, Mamaroneck 2,396 04/30/2019
207 Union Ave, Mamaroneck 2,352 07/08/1999 $130,625
302 Union Ave, Mamaroneck 3,075 05/08/2013
416 Tompkins Ave, Mamaroneck 2,079 11/12/1997
420 Tompkins Ave, Mamaroneck 1,551 01/24/2025 $855,000
306 Union Ave, Mamaroneck 1,752 02/28/2022
304 Tompkins Ave, Mamaroneck 1,536
334 Ward Ave, Mamaroneck 3,313 08/23/2007 $633,300
412 Tompkins Ave, Mamaroneck 2,280 08/31/2017
319 Ward Ave, Mamaroneck 4,966 12/04/2014 $692,500
331 Ward Ave, Mamaroneck 1,803
328 Ward Ave, Mamaroneck 2,036 07/13/2015 $550,000
324 Ward Ave, Mamaroneck 2,044 05/02/2018

Nearby ZIP Codes for 209 Union Avenue, Mamaroneck

Not sure if we cover all the data-points you need? View sample full report View sample full report