21 Alter Alley Way
Nassau, NY 12123
3 bd 2 ba 1,672 sqft Built 1927 Lot 11,761 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 | $91,600 | $18,400 | $110,000 | $5,603 |
| 2024 | $91,600 | $18,400 | $110,000 | $5,341 |
| 2023 | $91,600 | $18,400 | $110,000 | $5,445 |
| 2022 | $91,600 | $18,400 | $110,000 | $5,497 |
| 2021 | $91,600 | $18,400 | $110,000 | $5,379 |
| 2020 | $91,600 | $18,400 | $110,000 | $4,606 |
| 2017 | $91,600 | $18,400 | $110,000 | $3,291 |
| 2016 | $91,600 | $18,400 | $110,000 | $3,256 |
| 2015 | $91,600 | $18,400 | $110,000 | $4,128 |
| 2014 | $105,000 | $5,000 | $110,000 | $4,243 |
| 2013 | $105,000 | $5,000 | $110,000 | $5,766 |
| 2012 | $105,000 | $5,000 | $110,000 | $4,407 |
| 2011 | $105,000 | $5,000 | $110,000 | $4,167 |
| 2010 | $105,000 | $5,000 | $110,000 | $4,064 |
| 2009 | $105,000 | $5,000 | $110,000 | $3,184 |
| 2007 | $105,000 | $5,000 | $110,000 | $1,153 |
Property facts
Year built
1927
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,672 sqft
Lot size
11,761 sqft
ZIP code
12123
City
Nassau
Street
Alter Alley Way
Coordinates
42.51135, -73.61155
Comparable properties nearby
Frequently asked questions
When did 21 Alter Alley Way last sell?
No public-record sale is on file for 21 Alter Alley Way.
What is the current tax assessment for 21 Alter Alley Way?
The most recent total assessment for 21 Alter Alley Way (year 2025) is $110,000 with $5,603 in property tax.
When was 21 Alter Alley Way built?
21 Alter Alley Way was built in 1927.
How does 21 Alter Alley Way compare to others on Alter Alley Way?
We track 3 other properties on Alter Alley Way. Browse the list under "Other properties on Alter Alley Way" to compare beds, baths, and sale history.
What are the property facts for 21 Alter Alley Way?
21 Alter Alley Way is a 3 bed, 2 bath, 1,672 sqft, 11,761 sqft lot single_family.
Is 21 Alter Alley Way a flip candidate?
No — 21 Alter Alley Way does not appear in our flips dataset.
Is 21 Alter Alley Way a tax-appeal candidate?
No — 21 Alter Alley Way is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+4.5%
Implied 1-yr
+18.1%
2026 Q3
$346.9K
2026 Q4
$359K
ZIP 12123 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Alter Alley Way