| Primary address | 40 William Street, Ossining |
| Zip code | 10562 |
| County | Westchester |
| Municipality | Ossining |
| Parcel ID | 97.7-5-18 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/29/2019 |
| Sale price | $560,000 |
| Arm's length | Register |
| Current property tax | $16,595 |
| Building sqft | 1,838 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.34 |
| Year built | 1850 |
| Units | 2 |
| Rooms | 7 |
| Bedrooms | 4 |
| Bathrooms | 2 |
| Zoning district | Register |
| School district | Ossining |
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:
40 William Street, Ossining, NY 10562 was built in 1850 and has a total of 1,838 square feet.
What is the assessed value of 40 William Street, Ossining, NY 10562 and the property tax paid?Assessed at $692,500, the tax amount paid for 40 William Street, Ossining, NY 10562 is $21,704.
When was 40 William Street, Ossining, NY 10562 last sold and what was the last sale price?40 William Street, Ossining, NY 10562 was last sold in 05/29/2019 for $560,000.
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 40 William Street, Ossining, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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.
R: Recorded date
D: Document date
Access detailed property tax data for 40 William Street, Ossining, NY 10562. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025 |
| Base tax | $21,704 |
| Current property tax | $16,595 |
| Market value | $692,500 |
| Assessed value | $692,500 |
Here's the assessment & property tax history for 40 William Street, Ossining, 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 | $692,500 | $692,500 | 31.3416 | $21,704 | -10.32% |
| 2024 | $741,300 | $741,300 | 32.6487 | $24,202 | -0.65% |
| 2023 | $690,300 | $690,300 | 35.2915 | $24,362 | +1.25% |
| 2022 | $615,900 | $615,900 | 39.0673 | $24,062 | +18.33% |
| 2021 | $513,900 | $513,900 | 39.5689 | $20,334 | +0.82% |
Access a detailed real estate market overview of Ossining so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Ossining and compare it to other neighborhoods in Westchester County.
Check out recently sold homes in Ossining and see how their prices compare.
Create a free account to unlock extended information for 40 William Street, Ossining, 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 40 William Street, Ossining 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) |
|---|---|---|---|---|---|
| Park School | NR | Public | PK, K | 543 | 0.07 |
| Park School | NR | Public | PK, K | 543 | 0.07 |
| Claremont School | 3 | Public | 3-4 | 683 | 1.11 |
| Roosevelt School | 3 | Public | 5 | 352 | 1.13 |
| Noah's Ark Christian Academy | NR | Private | PK, K-8 | 0 | 1.19 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cardinal Mccloskey School | NR | Private | 8-12 | 4 | 0.93 |
| Anne M Dorner Middle School | 4 | Public | 6-8 | 1,033 | 1.14 |
| Noah's Ark Christian Academy | NR | Private | PK, K-8 | 0 | 1.19 |
| St Theresa School | NR | Private | PK, K-8 | 147 | 1.46 |
| Clearview School Day Treatment | NR | Private | PK-12 | 116 | 1.61 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Ossining High School | 4 | Public | 9-12 | 1,552 | 0.32 |
| Cardinal Mccloskey School | NR | Private | 8-12 | 4 | 0.93 |
| Clearview School Day Treatment | NR | Private | PK-12 | 116 | 1.61 |
| Briarcliff High School | 10 | Public | 9-12 | 488 | 2.95 |
| Croton Harmon High School | 9 | Public | 9-12 | 486 | 3.72 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 40 William Street, Ossining.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 21 Edward St, Ossining | 2,408 | 12/29/2017 | $115,000 |
| 22 Edward St, Ossining | |||
| 26 William St, Ossining | 1,678 | 03/06/2019 | |
| 48 William St, Ossining | 1,856 | 11/01/2010 | $144,700 |
| 50 William St, Ossining | 1,236 | 04/04/2008 | $350,000 |
| 84 S Highland Ave, Ossining | 2,767 | 06/13/2016 | |
| 86 S Highland Ave, Ossining | 4,310 | 09/26/2018 | $350,000 |
| 42 William St, Ossining | 2,120 | ||
| 80 S Highland Ave, Ossining | 3,690 | 09/06/2024 | $999,000 |
| 17-19 Edward St, Ossining | 12/22/1997 | $75,000 | |
| 36 William St, Ossining | 1,408 | 03/02/2026 | |
| 82 S Highland Ave, Ossining | 2,244 | 06/06/2003 | $240,000 |
| 11 Edward St, Ossining | 1,607 | 02/10/2020 | |
| 32 William St, Ossining | 2,521 | ||
| 28 William St, Ossining | 2,244 | 02/16/2021 | $355,000 |
| 44 William St, Ossining | 4,450 | 04/30/2009 | $100,000 |
| 46 William St, Ossining | 3,056 | 11/20/2001 | |
| 20 Edward St, Ossining | 2,256 | 05/12/2014 | |
| 13-15 Edward St, Ossining | |||
| 38 William St, Ossining | 2,868 |