21 Flag Hill Rd
Chappaqua, NY 10514
5 bd 3 ba 3,113 sqft Built 1972 Lot 41,818 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 | $8,250 | $2,700 | $10,950 | $24,023 |
| 2024 | $8,250 | $2,700 | $10,950 | $23,558 |
| 2023 | $8,250 | $2,700 | $10,950 | $24,037 |
| 2022 | $8,250 | $2,700 | $10,950 | $24,925 |
| 2021 | $8,250 | $2,700 | $10,950 | $23,168 |
| 2020 | $12,600 | $2,700 | $15,300 | $31,878 |
| 2018 | $12,600 | $2,700 | $15,300 | $28,633 |
| 2017 | $12,600 | $2,700 | $15,300 | $27,051 |
| 2016 | $12,600 | $2,700 | $15,300 | $28,640 |
| 2015 | $12,600 | $2,700 | $15,300 | $26,754 |
| 2014 | $12,600 | $2,700 | $15,300 | $26,637 |
| 2013 | $12,600 | $2,700 | $15,300 | $26,114 |
| 2012 | $12,600 | $2,700 | $15,300 | $22,413 |
| 2011 | $12,600 | $2,700 | $15,300 | $25,321 |
| 2008 | $12,600 | $2,700 | $15,300 | $20,433 |
| 2007 | $12,600 | $2,700 | $15,300 | $19,574 |
Property facts
Year built
1972
Property type
single_family
Stories
2
Beds
5
Baths
3
Living area
3,113 sqft
Lot size
41,818 sqft
ZIP code
10514
City
Chappaqua
Street
Flag Hill Rd
Coordinates
41.14697, -73.79003
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Flag Hill Rd last sell?
No public-record sale is on file for 21 Flag Hill Rd.
What is the current tax assessment for 21 Flag Hill Rd?
The most recent total assessment for 21 Flag Hill Rd (year 2025) is $10,950 with $24,023 in property tax.
When was 21 Flag Hill Rd built?
21 Flag Hill Rd was built in 1972.
How does 21 Flag Hill Rd compare to others on Flag Hill Rd?
We track 2 other properties on Flag Hill Rd. Browse the list under "Other properties on Flag Hill Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Flag Hill Rd?
21 Flag Hill Rd is a 5 bed, 3 bath, 3,113 sqft, 41,818 sqft lot single_family.
Is 21 Flag Hill Rd a flip candidate?
No — 21 Flag Hill Rd does not appear in our flips dataset.
Is 21 Flag Hill Rd a tax-appeal candidate?
No — 21 Flag Hill 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
-3.1%
Implied 1-yr
-12.5%
2026 Q3
$1.1M
2026 Q4
$1.06M
ZIP 10514 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Flag Hill Rd