23 William St
Sparkill, NY 10976
2 bd 1 ba 1,070 sqft Built 1943 Lot 10,890 sqft single_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 | $106,200 | $40,900 | $147,100 | $11,934 |
| 2024 | $106,200 | $40,900 | $147,100 | $8,430 |
| 2023 | $64,800 | $40,900 | $105,700 | $8,401 |
| 2022 | $64,800 | $40,900 | $105,700 | $6,638 |
| 2021 | $64,800 | $40,900 | $105,700 | $7,595 |
| 2020 | $64,800 | $40,900 | $105,700 | $7,412 |
| 2018 | $64,800 | $40,900 | $105,700 | $4,548 |
| 2016 | $64,800 | $40,900 | $105,700 | $4,172 |
| 2015 | $64,800 | $40,900 | $105,700 | $4,202 |
| 2014 | $64,800 | $40,900 | $105,700 | $6,414 |
| 2013 | $64,800 | $40,900 | $105,700 | $3,990 |
| 2012 | $64,800 | $40,900 | $105,700 | $3,783 |
| 2010 | $64,800 | $40,900 | $105,700 | $4,371 |
Property facts
Year built
1943
Property type
single_family
Stories
2
Beds
2
Baths
1
Living area
1,070 sqft
Lot size
10,890 sqft
ZIP code
10976
City
Sparkill
Street
William St
Coordinates
41.02843, -73.92699
Comparable properties nearby
Frequently asked questions
When did 23 William St last sell?
No public-record sale is on file for 23 William St.
What is the current tax assessment for 23 William St?
The most recent total assessment for 23 William St (year 2025) is $147,100 with $11,934 in property tax.
When was 23 William St built?
23 William St was built in 1943.
How does 23 William St compare to others on William St?
We track 1 other property 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 23 William St?
23 William St is a 2 bed, 1 bath, 1,070 sqft, 10,890 sqft lot single_family.
Is 23 William St a flip candidate?
No — 23 William St does not appear in our flips dataset.
Is 23 William St a tax-appeal candidate?
No — 23 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
+4.9%
Implied 1-yr
+19.7%
2025 Q1
$626.3K
2025 Q2
$649.7K
ZIP 10976 — Median Price History + Forecast
Explore nearby
Geography
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