| Primary address | 21 Calam Avenue, Ossining |
| Zip code | 10562 |
| County | Westchester |
| Municipality | Ossining |
| Parcel ID | 89.16-4-82 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 07/01/2025 |
| Sale price | $700,000 |
| Arm's length | Register |
| Current property tax | $13,254 |
| Building sqft | 1,008 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.16 |
| Year built | 1930 |
| Rooms | 7 |
| Bedrooms | 3 |
| Bathrooms | 1 |
| 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:
21 Calam Avenue, Ossining, NY 10562 was built in 1930 and has a total of 1,008 square feet.
What is the assessed value of 21 Calam Avenue, Ossining, NY 10562 and the property tax paid?Assessed at $553,100, the tax amount paid for 21 Calam Avenue, Ossining, NY 10562 is $17,335.
When was 21 Calam Avenue, Ossining, NY 10562 last sold and what was the last sale price?21 Calam Avenue, Ossining, NY 10562 was last sold in 07/01/2025 for $700,000.
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Create a free account to view the complete sales history for 21 Calam Avenue, Ossining, including title documents, transfer conditions, mortgages and liens.
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 21 Calam Avenue, Ossining, NY 10562. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025 |
| Base tax | $17,335 |
| Current property tax | $13,254 |
| Market value | $553,100 |
| Assessed value | $553,100 |
Here's the assessment & property tax history for 21 Calam Avenue, 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 | $553,100 | $553,100 | 31.3416 | $17,335 | -4.38% |
| 2024 | $555,300 | $555,300 | 32.6487 | $18,130 | -1.81% |
| 2023 | $523,200 | $523,200 | 35.2915 | $18,465 | -1.60% |
| 2022 | $480,300 | $480,300 | 39.0673 | $18,764 | +10.59% |
| 2021 | $428,800 | $428,800 | 39.5689 | $16,967 | -3.25% |
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 21 Calam Avenue, 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 21 Calam Avenue, 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) |
|---|---|---|---|---|---|
| Noah's Ark Christian Academy | NR | Private | PK, K-8 | 0 | 0.16 |
| Noah's Ark Christian Academy | NR | Private | PK, K-8 | 0 | 0.16 |
| Roosevelt School | 3 | Public | 5 | 352 | 0.18 |
| Claremont School | 3 | Public | 3-4 | 683 | 0.66 |
| Brookside School | NR | Public | K-2 | 727 | 1.24 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Noah's Ark Christian Academy | NR | Private | PK, K-8 | 0 | 0.16 |
| Anne M Dorner Middle School | 4 | Public | 6-8 | 1,033 | 0.73 |
| Cardinal Mccloskey School | NR | Private | 8-12 | 4 | 0.86 |
| St Theresa School | NR | Private | PK, K-8 | 147 | 1.39 |
| St Augustine School | NR | Private | PK-8 | 426 | 1.68 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cardinal Mccloskey School | NR | Private | 8-12 | 4 | 0.86 |
| Ossining High School | 4 | Public | 9-12 | 1,552 | 0.92 |
| Clearview School Day Treatment | NR | Private | PK-12 | 116 | 2.67 |
| Briarcliff High School | 10 | Public | 9-12 | 488 | 3.02 |
| Croton Harmon High School | 9 | Public | 9-12 | 486 | 3.17 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 Calam Avenue, Ossining.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 23 Forest Ave, Ossining | 2,280 | 12/10/1997 | $238,000 |
| 12 Forest Ave, Ossining | 1,738 | ||
| 19 Calam Ave, Ossining | 1,284 | 02/27/2026 | |
| 15 Marshall Pl, Ossining | 2,034 | 01/08/1998 | $205,000 |
| 19 Marshall Pl, Ossining | 2,157 | 07/02/2008 | |
| 25 Forest Ave, Ossining | 1,848 | 12/08/2023 | $581,056 |
| 14 Forest Ave, Ossining | 1,418 | 11/09/2000 | $250,000 |
| 35 Calam Ave, Ossining | 1,032 | 01/30/2023 | $415,000 |
| 23 Calam Ave, Ossining | 1,380 | 09/06/2018 | $415,000 |
| 19 Forest Ave, Ossining | 1,328 | 11/09/2018 | $400,000 |
| 20 Forest Ave, Ossining | 1,152 | 09/19/2018 | |
| 21 Forest Ave, Ossining | 1,320 | 04/16/2019 | $395,000 |
| 17 Calam Ave, Ossining | 1,454 | 05/24/2010 | $375,000 |
| 16 Forest Ave, Ossining | 992 | 11/14/2025 | $565,000 |
| 17 Marshall Pl, Ossining | 1,912 | 08/31/2022 | |
| 31 Calam Ave, Ossining | 1,402 | 08/31/2004 | $420,000 |
| 25 Calam Ave, Ossining | 2,112 | 04/23/1999 | $185,000 |
| 17 Forest Ave, Ossining | 1,811 | 01/09/2020 | $515,000 |
| 18 Forest Ave, Ossining | 865 | 01/22/2009 | |
| 33 Calam Ave, Ossining | 1,612 | 05/11/2010 |