21 Knolltop Rd
Elmsford, NY 10523
— ba Lot 23,688 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 | $858,300 | $158,200 | $1,016,500 | $26,760 |
| 2024 | $791,800 | $158,200 | $950,000 | $24,895 |
| 2023 | $665,400 | $161,700 | $827,100 | $24,139 |
| 2022 | $653,300 | $166,700 | $820,000 | $23,927 |
| 2021 | $563,400 | $176,600 | $740,000 | $22,970 |
| 2020 | $591,700 | $185,400 | $777,100 | $24,100 |
| 2018 | $591,700 | $185,400 | $777,100 | $24,048 |
| 2017 | $562,700 | $185,400 | $748,100 | $15,302 |
| 2016 | $18,300 | $4,700 | $23,000 | $21,702 |
| 2015 | $18,300 | $4,700 | $23,000 | $20,435 |
| 2014 | $18,300 | $4,700 | $23,000 | $19,892 |
| 2013 | $18,300 | $4,700 | $23,000 | $19,161 |
| 2012 | $18,300 | $4,700 | $23,000 | $18,395 |
| 2011 | $22,300 | $4,700 | $27,000 | $20,588 |
| 2009 | $22,300 | $4,700 | $27,000 | $19,569 |
| 2008 | $22,300 | $4,700 | $27,000 | $16,221 |
| 2007 | $22,300 | $4,700 | $27,000 | $15,549 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
23,688 sqft
ZIP code
10523
City
Elmsford
Street
Knolltop Rd
Coordinates
41.05485, -73.80754
Frequently asked questions
When did 21 Knolltop Rd last sell?
No public-record sale is on file for 21 Knolltop Rd.
What is the current tax assessment for 21 Knolltop Rd?
The most recent total assessment for 21 Knolltop Rd (year 2025) is $1,016,500 with $26,760 in property tax.
When was 21 Knolltop Rd built?
The year built for 21 Knolltop Rd is not in our records.
How does 21 Knolltop Rd compare to others on Knolltop Rd?
We track 4 other properties on Knolltop Rd. Browse the list under "Other properties on Knolltop Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Knolltop Rd?
21 Knolltop Rd is a — bath, 23,688 sqft lot single_family.
Is 21 Knolltop Rd a flip candidate?
No — 21 Knolltop Rd does not appear in our flips dataset.
Is 21 Knolltop Rd a tax-appeal candidate?
No — 21 Knolltop Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.5%
Implied 1-yr
+6.0%
2026 Q2
$705.2K
2026 Q3
$714.8K
ZIP 10523 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Knolltop Rd