21 Delaware Ave
Commack, NY 11725
3 bd 2 ba 1,200 sqft Built 1960 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 | $4,035 | $300 | $4,335 | $11,958 |
| 2024 | $4,035 | $300 | $4,335 | $12,046 |
| 2023 | $4,035 | $300 | $4,335 | $11,964 |
| 2022 | $4,035 | $300 | $4,335 | $11,814 |
| 2021 | $4,035 | $300 | $4,335 | $11,590 |
| 2020 | $4,035 | $300 | $4,335 | $11,547 |
| 2018 | $4,035 | $300 | $4,335 | $11,069 |
| 2017 | $4,035 | $300 | $4,335 | $10,269 |
| 2016 | $4,035 | $300 | $4,335 | $8,838 |
| 2015 | $4,035 | $300 | $4,335 | $8,683 |
| 2014 | $4,035 | $300 | $4,335 | $8,559 |
| 2013 | $4,035 | $300 | $4,335 | $8,542 |
| 2012 | $4,035 | $300 | $4,335 | $8,304 |
| 2011 | $4,035 | $300 | $4,335 | $8,134 |
| 2010 | $4,035 | $300 | $4,335 | $7,803 |
| 2008 | $4,035 | $300 | $4,335 | $7,370 |
| 2007 | $4,035 | $300 | $4,335 | $7,011 |
| 2006 | $4,035 | $300 | $4,335 | $6,577 |
Property facts
Year built
1960
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,200 sqft
Lot size
10,890 sqft
ZIP code
11725
City
Commack
Street
Delaware Ave
Coordinates
40.82748, -73.29011
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Delaware Ave last sell?
No public-record sale is on file for 21 Delaware Ave.
What is the current tax assessment for 21 Delaware Ave?
The most recent total assessment for 21 Delaware Ave (year 2025) is $4,335 with $11,958 in property tax.
When was 21 Delaware Ave built?
21 Delaware Ave was built in 1960.
How does 21 Delaware Ave compare to others on Delaware Ave?
We track 5 other properties on Delaware Ave. Browse the list under "Other properties on Delaware Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Delaware Ave?
21 Delaware Ave is a 3 bed, 2 bath, 1,200 sqft, 10,890 sqft lot single_family.
Is 21 Delaware Ave a flip candidate?
No — 21 Delaware Ave does not appear in our flips dataset.
Is 21 Delaware Ave a tax-appeal candidate?
No — 21 Delaware Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.8%
Implied 1-yr
+11.4%
2026 Q3
$1.06M
2026 Q4
$1.09M
ZIP 11725 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Delaware Ave