40 William St
Ossining, NY 10562
5 bd 2 ba 2,838 sqft Built 1850 Lot 14,810 sqft multi_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $463,600 | $228,900 | $692,500 | $24,120 |
| 2024 | $610,500 | $130,800 | $741,300 | $23,337 |
| 2023 | $485,100 | $130,800 | $615,900 | $22,274 |
| 2022 | $383,100 | $130,800 | $513,900 | $20,684 |
| 2021 | $362,400 | $130,800 | $493,200 | $17,451 |
| 2020 | $216,600 | $113,800 | $330,400 | $13,907 |
| 2018 | $213,500 | $113,800 | $327,300 | $13,807 |
| 2017 | $201,000 | $113,800 | $314,800 | $9,401 |
| 2016 | $12,130 | $5,400 | $17,530 | $13,045 |
| 2015 | $12,130 | $5,400 | $17,530 | $12,962 |
| 2014 | $12,130 | $5,400 | $17,530 | $12,457 |
| 2013 | $12,130 | $5,400 | $17,530 | $12,075 |
| 2012 | $12,130 | $5,400 | $17,530 | $10,185 |
| 2011 | $12,130 | $5,400 | $17,530 | $11,444 |
| 2008 | $12,130 | $5,400 | $17,530 | $9,400 |
| 2007 | $11,400 | $5,400 | $16,800 | $8,288 |
Property facts
Year built
1850
Property type
multi_family
Stories
—
Beds
5
Baths
2
Living area
2,838 sqft
Lot size
14,810 sqft
ZIP code
10562
City
Ossining
Street
William St
Coordinates
41.15516, -73.86201
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 40 William St last sell?
No public-record sale is on file for 40 William St.
What is the current tax assessment for 40 William St?
The most recent total assessment for 40 William St (year 2025) is $692,500 with $24,120 in property tax.
When was 40 William St built?
40 William St was built in 1850.
How does 40 William St compare to others on William St?
We track 8 other properties on William St. Browse the list under "Other properties on William St" to compare beds, baths, and sale history.
What are the property facts for 40 William St?
40 William St is a 5 bed, 2 bath, 2,838 sqft, 14,810 sqft lot multi_family.
Is 40 William St a flip candidate?
No — 40 William St does not appear in our flips dataset.
Is 40 William St a tax-appeal candidate?
No — 40 William St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.4%
Implied 1-yr
+5.4%
2026 Q3
$811.6K
2026 Q4
$821.7K
ZIP 10562 — Median Price History + Forecast
Explore nearby
Geography
Other properties on William St