| Primary address | 333 Union Avenue, Mamaroneck |
| Zip code | 10543 |
| County | Westchester |
| Municipality | Rye |
| Parcel ID | 154.42-1-65 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $15,096 |
| Building sqft | 1,680 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.14 |
| Lot dimensions | 50 ft X 120 ft |
| Frontage | 50 |
| Depth | 120 |
| Year built | 1880 |
| Stories | 2 |
| Units | 2 |
| Bedrooms | 3 |
| Bathrooms | 2 |
| Half bathrooms | 1 |
| Kitchen | 2 |
| Water supply | Comm/public |
| Sewer | Comm/public |
| Zoning district | Register |
| School district | Rye Neck |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
333 Union Avenue, Mamaroneck, NY 10543 was built in 1880 and has a total of 1,680 square feet.
What is the assessed value of 333 Union Avenue, Mamaroneck, NY 10543 and the property tax paid?Assessed at $715,200, the tax amount paid for 333 Union Avenue, Mamaroneck, NY 10543 is $15,453.
How many residential units does this building have?This building has 2 residential unit(s).
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 333 Union Avenue, Mamaroneck, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 333 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 | $15,454 |
| Current property tax | $15,096 |
| Market value | $715,200 |
| Assessed value | $715,200 |
Here's the assessment & property tax history for 333 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 | $715,200 | $715,200 | 21.6079 | $15,454 | +5.90% |
| 2024 | $681,100 | $681,100 | 21.4249 | $14,592 | -1.30% |
| 2023 | $654,900 | $654,900 | 22.5745 | $14,784 | +1.77% |
| 2022 | $623,700 | $623,700 | 23.2904 | $14,526 | +1.43% |
| 2021 | $572,200 | $572,200 | 25.0283 | $14,321 | -5.48% |
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.
Create a free account to unlock extended information for 333 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) |
Access the detailed traffic volume map for 333 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| French-American School of New York | NR | Private | PK-12 | 765 | 0.27 |
| French-American School of New York | NR | Private | PK-12 | 765 | 0.27 |
| F E Bellows Elementary School | 8 | Public | 3-5 | 347 | 0.36 |
| Mamaroneck Avenue School | 6 | Public | K-5 | 684 | 0.44 |
| Daniel Warren Elementary School | NR | Public | K-2 | 320 | 0.64 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| French-American School of New York | NR | Private | PK-12 | 765 | 0.27 |
| Rye Neck Middle School | 7 | Public | 6-8 | 351 | 0.96 |
| Westchester Day School | NR | Private | PK, K-8 | 379 | 1.33 |
| Ss John & Paul School | NR | Private | PK-8 | 349 | 1.51 |
| Hommocks School | 7 | Public | 6-8 | 1,258 | 1.53 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| French-American School of New York | NR | Private | PK-12 | 765 | 0.27 |
| Rye Neck Senior High School | 9 | Public | 9-12 | 515 | 0.96 |
| Mamaroneck High School | 8 | Public | 9-12 | 1,660 | 1.05 |
| Westchester Hebrew High School | NR | Private | 9-12 | 87 | 1.33 |
| Harrison High School | 9 | Public | 9-12 | 1,064 | 1.92 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 333 Union Avenue, Mamaroneck.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 521 Walnut St, Mamaroneck | 2,224 | 11/28/2017 | |
| 110 Laura Joy Cir, Mamaroneck | 1,360 | 07/24/1997 | $235,000 |
| 1320 Harrison Ave, Mamaroneck | 2,720 | 09/27/2019 | |
| 325 Florence St, Mamaroneck | 1,528 | 08/31/2022 | $871,000 |
| 423 Hinman Pl, Mamaroneck | 2,122 | 09/13/2024 | $651,000 |
| 319 Union Ave, Mamaroneck | 4,530 | 06/06/2025 | |
| 313 Union Ave, Mamaroneck | 4,012 | 06/06/2025 | |
| 210 Beach Ave, Mamaroneck | 2,333 | ||
| 206 Beach Ave, Mamaroneck | 2,148 | 11/18/2020 | $999,000 |
| 1330 Harrison Ave, Mamaroneck | 2,760 | 12/20/2023 | |
| 120 Laura Joy Cir, Mamaroneck | 1,912 | 11/26/1996 | $275,000 |
| 321 Florence St, Mamaroneck | 1,822 | 07/17/2006 | $687,250 |
| 328 Melbourne Ave, Mamaroneck | 2,040 | 01/22/2015 | |
| 218 Beach Ave, Mamaroneck | 1,702 | ||
| 325 Union Ave, Mamaroneck | 1,766 | 04/29/2016 | |
| 520 Pine St, Mamaroneck | 2,668 | 12/30/2013 | $999,000 |
| 329 Union Ave, Mamaroneck | 1,428 | 06/24/1997 | $185,000 |
| 517 Walnut St, Mamaroneck | 2,128 | 11/20/2020 | $1,100,000 |
| 415 Hinman Pl, Mamaroneck | 1,860 | ||
| 419 Hinman Pl, Mamaroneck | 2,448 | 08/02/2022 | $150,000 |