| Primary address | 903 Old Boston Post Road, Mamaroneck |
| Zip code | 10543 |
| County | Westchester |
| Municipality | Mamaroneck |
| Parcel ID | 9.20-20-0 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $17,245 |
| Building sqft | 3,751 |
| Building class | Three Family Year-Round Residence (230) |
| Acreage | 0.19 |
| Year built | 1880 |
| Stories | 2 |
| Units | 3 |
| Bedrooms | 6 |
| Bathrooms | 4 |
| Kitchen | 3 |
| Water supply | Comm/public |
| Sewer | Comm/public |
| Zoning district | Register |
| School district | Mamaroneck |
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:
903 Old Boston Post Road, Mamaroneck, NY 10543 was built in 1880 and has a total of 3,751 square feet.
What is the assessed value of 903 Old Boston Post Road, Mamaroneck, NY 10543 and the property tax paid?Assessed at $1,187,000, the tax amount paid for 903 Old Boston Post Road, Mamaroneck, NY 10543 is $25,111.
How many residential units does this building have?This building has 3 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 903 Old Boston Post Road, Mamaroneck, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 903 Old 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 | $25,111 |
| Current property tax | $17,245 |
| Market value | $1,187,000 |
| Assessed value | $1,187,000 |
Here's the assessment & property tax history for 903 Old 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 | $1,187,000 | $1,187,000 | 21.155 | $25,111 | +2.63% |
| 2024 | $1,152,000 | $1,152,000 | 21.2384 | $24,467 | +0.28% |
| 2023 | $1,067,000 | $1,067,000 | 22.8669 | $24,399 | +3.89% |
| 2022 | $979,000 | $979,000 | 23.9884 | $23,485 | +3.34% |
| 2021 | $932,000 | $932,000 | 24.3829 | $22,725 | +4.87% |
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 903 Old Boston Post Road, 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 903 Old Boston Post Road, 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) |
|---|---|---|---|---|---|
| Central School | 8 | Public | PK, K-5 | 513 | 0.44 |
| Central School | 8 | Public | PK, K-5 | 513 | 0.44 |
| Westchester Day School | NR | Private | PK, K-8 | 379 | 0.78 |
| Westchester Day School | NR | Private | PK, K-8 | 379 | 0.78 |
| French-American School of New York | NR | Private | PK-12 | 765 | 0.80 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Hommocks School | 7 | Public | 6-8 | 1,258 | 0.59 |
| Westchester Day School | NR | Private | PK, K-8 | 379 | 0.78 |
| French-American School of New York | NR | Private | PK-12 | 765 | 0.80 |
| Ss John & Paul School | NR | Private | PK-8 | 349 | 0.84 |
| Rye Neck Middle School | 7 | Public | 6-8 | 351 | 1.74 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Mamaroneck High School | 8 | Public | 9-12 | 1,660 | 0.19 |
| Westchester Hebrew High School | NR | Private | 9-12 | 87 | 0.78 |
| French-American School of New York | NR | Private | PK-12 | 765 | 0.80 |
| Rye Neck Senior High School | 9 | Public | 9-12 | 515 | 1.74 |
| Thornton-Donovan School | NR | Private | K-12 | 170 | 2.28 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 903 Old Boston Post Road, Mamaroneck.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 398 Palmer Ave, Mamaroneck | 1,322 | 05/21/1999 | $298,000 |
| 209 Prospect Ave, Mamaroneck | 1,404 | 12/19/2014 | $512,500 |
| 225 Orienta Ave, Mamaroneck | 3,686 | ||
| 303 Orienta Ave, Mamaroneck | 1,379 | ||
| 703 Old Boston Post Rd, Mamaroneck | 1,890 | ||
| 318 Prospect Ave, Mamaroneck | 3,519 | ||
| 215 Prospect Ave, Mamaroneck | 1,744 | 10/30/2024 | |
| 201 Maple Ave, Mamaroneck | 1,410 | 08/10/2017 | $600,000 |
| 226 MT Pleasant Ave, Mamaroneck | 1,520 | ||
| 711 Old Boston Post Rd, Mamaroneck | 1,912 | 08/04/2021 | |
| 701 Old Boston Post Rd, Mamaroneck | 1,874 | ||
| 220 MT Pleasant Ave, Mamaroneck | 2,188 | 01/18/2019 | |
| 233 Orienta Ave, Mamaroneck | 2,109 | 01/11/2022 | |
| 241 Orienta Ave, Mamaroneck | 2,064 | 03/28/2019 | $710,500 |
| 702 Hall St, Mamaroneck | 1,681 | ||
| 312 Prospect Ave, Mamaroneck | 2,795 | 03/15/2023 | $999,000 |
| 707 Old Boston Post Rd, Mamaroneck | 1,338 | 01/13/2025 | $950,000 |
| 215 Fenimore Rd, Mamaroneck | 2,437 | ||
| 624 Hall St, Mamaroneck | 2,261 | 06/20/2025 | $1 |
| 705 Old Boston Post Rd, Mamaroneck | 2,848 | 09/25/2003 |